catnic building components technical guide

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Building ComponentsTechnical Guide

March 2002

March 2002

C l/S fb (31.9) Hh2 (Y2)

Catnic



About CorusCorus is a major European producer of steel and

aluminium. Our multi-metals approach is one of theunique features of the company, and is at the heart of our strategy. Many things we use in our daily lives hasin some way involved metal in its creation. We work with automotive and packaging designers, architects,a broad range of engineers, and with those whoseprofession is product and industrial design.

Corus was formed on the 6

October 1999, through the merger

of British Steel and Knoninklijke

Hoogovens to create an

innovative metals company, which

combines international expertise

with a first class service.

Corus Business units deliver more

than high-quality meta l produc ts.They a re a ctive b usines s pa rtners,

helping c ustomers identi fy a nd ta ke

ad vantage of new oppor tunit ies .

Throug h the b usiness units ,

cus tom ers g a in acc ess to a g lob a l

netwo rk of know ledg e a nd expertise

to he lp opt imise their ow n

processes and products .

Tha nks to o ur bus ines s units C orus

supplies and manufactures a wide

range of s teel and a luminium

produc t s to the cons t ruc tion indus t ry

w orld w ide , including building

envelope sys tems, light s tructural

elements a nd a luminium and wa ll

c ladding systems.

Systems and services include:

• Building envelope sys tems

• Aluminium roo f and wa ll clad ding

sys tem s

• Curtain w alling

• Tra pezoida l shee ts for cladd ing

• Compos ite panels for c ladding

• Roof dec k prof iles

• Co mpos ite f loor dec k prof iles

• Light s tructura l elements (lintels,building co mponents and fram ing)

• Industr ial doors

• F las h ings a nd ac cessor ies

• Pe rforated coi l and sheet products

2 B uilding C om ponents Technical G uide

About Corus

For further information visit www.corusgroup.com



About Catnic

About CatnicCatnic specialises in the manufacture and supply of

building components, plasterers’ beads, steel lintelsand fence post support systems of the very higheststandard and quality.

Steel Plasterers’ Beads

Wet Plaster & External

Render App lications

5 S upa sa ve Ang le B ea d

5 S ta nd a rd Ang le B ea d

5 Rend ers top B ea d6 P la sters top Bea d

6 Arc hitra ve B ea d

6 Movement B ea d

7 P VC Nos e Ang le Bea d

7 B ull No se Ang le Bea d

7 Depth G ua g e B ea d

Steel Plasterers’ Beads

Drywall & Thin Coat

Plaster App lications

8 Dry Wa ll Ang le Be ad

8 Dry Wa ll Thin C o a t B e a d

8 Mic ro Ang le B ea d9 Dryw all S top B ea d

9 P la s te rb oa rd Ed ging B ea d

PVC-U Plasterers’ Beads

11 Ang le B ea d

11 P la ster S to p B ea d

11 C orner B ea d

12 B e ll C a s t R end er B e ad

1 2 Dry Wa ll Cor ne r Arch Be a d

13 In st a lla t io n o f B e a d s

Building Components

15 Dia mo nd La th

16 Rib La th

17 In s ta lla t io n o f La t h

18 Arch Forme rs &Acce s s or ie s

19 C a v it y Wa ll Tie s24 J o is t Ha n g e rs &Tru s s S h o e s

27 In s ta lla t io n of Ha n g e rs

28 Re stra int S t ra p s

32 He rrin g b o ne J o is t S trut s

33 R o of S p a c e Ve nt ila t io n S y s te m

34 Trus s C lip s

36 C o il Me s h & Fix in g B a nd

37 Fra m e Anc ho rs

39 S t ro n g ho ld Wa ll C o n ne c t or

40 Na il P l a tes , Toothpla te

Co nnectors &Angle Brac kets

41 S p ec ific a t io n C la us e s

43 C OS HH Re gula tio ns

Our reputation for the superior quality of our

products has been earned through constant

technical innovation and development. Choosing

a Catnic product from our comprehensive range

assures peace of mind and complete confidence

in the finished job.

Additionally, our sales and technical service teams are

ded ica ted to ma tching the q uality of our products with

the e xce lle nce o f our s e r vice . S a le s a nd te chnica l s upport

sta ff are friendly, helpful and highly profess iona l.

Ca tnic is c ommitted to providing the b uilding industry

with a s tea dy supply of new a nd improved products

borne from our investment in design and

ma nufac turing te chno log y. This b roc hure gives a n

overview of our B uilding Co mponents produc t range

along w ith c omprehensive tec hnica l and spec if ica tion

da ta . Deta ils o f our Lintel rang e and Fence P ost

Suppo rt Sys tems ca n be found in sepa rate brochures

available on request from the telephone number

given below.

We h o pe t ha t y o u w ill f in d t he

informat ion in the following pa ges

bo th use ful and informative, but if

you require any further assistance,

please call 029 2033 7900.

Contents

Cert No. FM 14913

BSEN ISO 9002: 1994 B uilding C om ponents Technical G uide 3




Steel Plasterer’s BeadsOur comprehensive range of Steel Plasterers’ Beadsare precision engineered and simple to use. Fixing

by nail or plaster dab is straightforward and fast,generating arises, edges, corners and joints that areeasy to form and resistant to chipping, cracking andimpact damage.



B uilding C om ponents Technical G uide 5

Steel Plasterer’s Beads

With one of the widest ranges of beads available,

Catnic offers the specifier freedom of choice to

satisfy both the aesthetic & technical requirements

of modern building design as well as the needs

of traditional repair and maintenance work.

Simply follow the application key to select thecorrect bead.

Material

G alvanised s teel to BS EN 10142-DX51D+ Z275.

Austenitic stainless steel to BSEN 10088-2-14301

for external applications.

SpecificationAll metal bead s co mply w ith the B ritish S tanda rds,

Beads for Internal Plastering and Drylining BS 6452

P a rt 1:1984.For external

and internal useFor internal use For external use

ext

int int

ext

Wet Plaster and External Render Applications

Supasave Angle BeadA strong , resilient a nd c os t effective

bead des igned for two c oa t

appl ica t ions . Supas ave g enera tes a

true, straight c orner which provides

strength and protection from

everyda y knocks.

Code Qty Length/Box (mm)

SS2.40 50 2400

SS3.0 50 3000

int

45mm

5mm

13mm

Plaster depth – 13mm

Flange size – 45mm

Ga lvanized steel to

B S EN 10142-DX51D+ Z275.

Standard Angle BeadDesigned for two a nd three co at

app lica tions, S tanda rd Angle Bead

forms strong and a cc urate c orners

resistant to chipping a nd c rac king.

Availab le in Sta inless S teel for

external use and high condens ation

and moisture areas .


STD 2.4 50 2400

STD 3.0 50 3000

STD 3.0/SS 10 or 50 3000

Stainless steel products suffixed ‘SS’.

ext

int

Render Stop BeadUsed to obtain a neat, bell-cast

low er edge to external render

finishes . This profile ha s e xc ellent

damage resistance quali t ies and

gives g ood protec tion to ma sonry

ag a inst run-off wa ter. Availab le in

Ga lvanised Steel for moderate to

sheltered co nditions and S tainless

Steel for expos ed c onditions.


R S3.0 50 3000

R S3.0/SS 10 or 50 3000

Stainless Steel products suffixed ‘SS’.

ext

Plaster depth – 12-19mm

Flang e size – 53mm

G alvanized S teel BS EN 10142-DX51D+ Z275

S ta inless S teel to B SEN 10088-2-1.4301

60°

25mm

45mm7mm

19mm


Flang e w idth – 45mm

Galvanized Steel to

BS EN 10142-DX51D+ Z275

St ainless S teel to B SEN 10088-2-1.4301

53mm

5mm

12 - 19mm





Shown w ith

flange. Also

available

without return

flange.

10mm (13mm)

13mm

20mm without return flange

37mm

Architrave BeadA bea d w hich ma y be used to

dec orative effect where shado w

lines are aesthetically desirable.

Typica l a pplica tions include the

creation o f clean d ivis ions betw een

varying wa ll finishes , a t w a ll and

ceiling a butments , do or and w indow

reveals and other built in joinery

features.

Code Qty Length Plaster/Box (mm) depth

AR C 10/W F/3.0 50 3000 10m m

w ith flange

AR C 10/W O /3.0 50 3000 10m m

w itho ut flange

AR C 13/W F/3.0 x25 25 3000 13m m

w ith flange

AR C 13/W O /3.0 50 3000 13m m

w itho ut flange

Movement BeadThe function of this b ea d is to allow

for movement between adjoining

surfac e finishes resulting from

differential expans ion o r settlement.

Allow ab le mo vement is ± 3mm.


M B10/3.0 x10 10 3000 12m m

M B13/3.0 x10 10 3000 15m m

M B16/3.0 x10 10 3000 18m m

M B19/3.0 x10 10 3000 21m m

M B 10/3.0/SS 10 3000 12m m

M B 13/3.0/SS 10 3000 15m m

M B 16/3.0/SS 10 3000 18m m

M B 19/3.0/SS 10 3000 21m m


Profile m ade to order.

ext

intint

12mm(15mm,

18mm,21mm)

25mm

140mm

ARC13/WF/3.0 x25 & ARC13/WO/3.0

dimensions in brackets.

Plaster depth – 10mm &13mm


Ga lvanised S teel to B SEN 10142-

DX51D+ Z275

Plaster depth – 12mm, 15mm, 18mm, 21mm

Flange width – 65mm

Ga lvanized S teel to B SEN 10142-

DX51D+ Z275

S tainless St eel to B S EN 10088-2-14301

Plaster Stop BeadProvides c lean, nea t ed ges to two

coa t plas ter/render work a t openings

or abutments onto o ther wa ll

surfac es or ceiling finishes .


PS10/2.4 50 2400 10m m

PS10/3.0 50 3000 10m m

PS13/2.4 50 2400 13m m

PS13/3.0 50 3000 13m m

PS16/3.0 50 3000 16m m

PS19/3.0 50 3000 19m m

P S10/3.0/S S 10 or 50 3000 10m m

P S13/3.0/S S 10 or 50 3000 13m m

P S16/3.0/S S 10 or 50 3000 16m m

P S19/3.0/S S 10 or 50 3000 19m m


65mm

3mm

Ø4.5mm

10mm (13mm,16mm, 19mm)

ext

int

Plaster depth – 10mm (13mm, 16mm, 19mm)


Galvanized Steel to

BS EN 10142-DX51D+ Z275

St ainless S teel to B S EN 10088-2-1.4301








DX51D+ Z275



Ga lvanized s teel to B SEN 10142-

DX51D+ Z275

DG6/3.0 dimensions in brackets.

Plaster depth – 6mm, 10mm

Ga lvanized ste el to B SEN 10142-

DX51D+ Z275

PVC Nose Angle BeadThe s am e rigid a nd durab le p rofile

a s S W10/3.0 but w ith the a dd ed

benefit of a P VC-U nose which

provides excellent edge protection

for vulnerable co rners w here a high

qua lit y f in is h ne ed s to b e ma in ta ine d

despite heavy wear and repeated

mec ha nica l co nta ct. S WP VC12/3.0

is suitable for exterior use in

moderate to s heltered cond itions

up to two s toreys .

Code Qty Length/Pack (mm)

SQ PV C 12/3.0 15 3000

M ade to order

Bull Nose Angle BeadDesigned to provide specifiers with

a further alternative to the standard

finish, this punched wing b ead

creates a 9.5mm diame ter edg e

detail combined with the extremely

rigid w ing profile. Idea l for RMI wo rk

in older properties or w here you

w ish to crea te a simila r feel in new

build projec ts.

Code Qty Length/Pack (mm)

SQ 8/3.0 25 3000

M ade to order

Depth Gauge BeadAva ila b le in 6 mm a nd 1 0mm prof ile s ,

Depth Ga uge Bea ds provide a quick

and a cc urate mea ns of ensuring

consistent, minimum plaster depths

as plaster is simply ‘ruled off ’ t o

leave the required thickness. Depth

Ga ug e Be a d s ma y a ls o b e us e d to

separa te plas ter a reas a nd as a

skirting bead.


D G 6/2.5 50 2500 6m m

D G 10/3.0 50 3000 10m m

M ade to order

ext

int int int

11mm

41mm

Ø5mm

8mm

10mm

30mm

9.5mm

23 mm(21mm)

10mm

(6mm)

Ø5mm

Ø3mm





Dry Wall Angle BeadRigid but lightw eight, the dryw all

bea d is designed for s tanda rd s ingle

plaste rwork. The internal ang le o f

the Dry Wa ll bea d is a cc ura tely

manufac tured to 80° providing

a plas ter depth of 6mm.

Code Qty /Box Length (mm)

D W 2.40 50 2400

D W 3.0 50 3000

Dry Wall Thin Coat BeadThe D ry Wa ll Thin Co a t b ea d

incorporates a new perforation

pattern for improved wing flexibility.

This, tog ether w ith the revised 85˚

ang le, a llow s g reater sc ope for on-

site adjustments a nd se tting.


D W TC 2.4 50 3000

D W TC 3.0 50 2400

25mm

Ø4mm

80°

6mm

3mm

int int




BS EN 10142-DX51D+ Z275.




B S EN 10142-DX51D+ Z275.

23mm

3mm

3mm

85°

Ø4mm

int

Micro Angle BeadA pop ular thin coa t bea d w ith fine

mesh w ings, designed for s ingle

coat plaster applications including

dry-wa ll, block a nd s lab wo rk.

P rovides excellent a dhesion a nd

go od reinforcement fo r the arris.


M M 2.40 2400 50

M M 3.0 3000 50




B S EN 10142-DX51D+ Z275.

Drywall and Thin Coat Plaster Applications

25mm

3mm

6mm





Dry Wall Stop BeadDesigned for thin coa t edg e

protec tion at o penings a nd for

providing abutments of plastered

a rea s to other w a ll finishes . Light

but extremely rigid, the sc a llope d

edg e p rovides for efficient keying

a nd exce llent finish.


D W SB 3/2.4 50 2400 3m m

D W SB 3/3.0 50 3000 3m m

D W SB 6/2.4 50 2400 6m m

D W SB 6/3.0 50 3000 6m m

30mm

3mm (6mm)

3mm

int

DWSB6 dimensions in brackets.

Plaster depths – 3mm &6mm



DX51D+ Z275

Plasterboard Edging BeadUs e d to re in force p la s te rb oa r d e d g e s

w ith the perforated flang e fixed

flush to the bo ard fac e prior to the

final skim co at . The bea d ma y also

be fixed w ith the flang e flush to t he

inner surface of the board for use

in projection wall panelling.

Code Qty Length Plaster-/Box (mm) board

PB EB 10/3.0 50 3000 9.5m m

PB EB 13/3.0 50 3000 12.5m m

25mm

2mm

9.5mm

(12.5mm)

12mm (10mm) 12mm (15mm)

int

PBEB13 dimensions in brackets.

Plasterboard depth – 9.5mm, 12.5mm


Ga lvanized S teel to BS EN 10142-

DX51D+ Z275




PVC-U Plasterers’ BeadsA range of non-corrosive, impact resistant whitePVC-U plastering beads. Benefits include easy

and safe handling and cutting with excellent keying.




PVC-U Plasterers’ Beads

Bell Cast Render BeadUsed to o bta in a neat b ell-cas t low er edg e to external

render finishes . This profile is des igned w ith exce llent

corrosion resista nt properties and represents a goo d

cost-effective alternative to stainless steel.

Code Qty/Box Length (mm)

N R 1925/3.0 25 3000

Dry Wall Corner Arch Bead25mm C orner Arch ma y be used to form a wide range of

curved ed ges and arch forms to a minimum rad ius of

250mm for drylining a nd thin-co at a pplica tions .

The punched ed ge a llow s ma ximum des ign a nd

insta lla tion flexibility a nd the ribb ed surfac e p rovides

excellent keying. Fixed by stapling, nailing, jointing filler

or ad hesive.

Code Qty/Box Length (mm)

N R 1660/3.0 25 3000




Flang e width – 25mm

25mm

50mm

60°

7mm

19mm

25mm

Ø3mm

25mm

int

ext




Metal Lath and Arch FormersCatnic’s metal lath is easy to fix and provides a securekey for many plaster and render applications including

joint and crack reinforcement and refurbishment work.

Catnic Arch Formers are a quick, convenient andversatile way to create non-loadbearing, perfectlyformed arches in a range of styles.




Metal Lath and Arch Formers

An easy-to-fix lath providing a secure key for plaster

and render applications as well as offering effective

joint and crack reinforcement. In addition, Diamond

Lath can be used as part of a fire protection system

for structural steel work.

9mm

16mm

Code Min material Material Qty Sheet weight Sheet Sizeweight (kg/m2) (kg) (mm)

D L111* 1.11 G alvanised Steel 10 1.94 2500 x 700

D L161 1.61 G alvanised Steel 10 2.82 2500 x 700

D L089 0.89 G alvanised Steel 10 1.53 2500 x 700

D L111S* 1.11 Stainless Steel 1 1.94 2500 x 700

*Not recommended for ceiling applications

Diamond Lath

Material

G a lvanised ste el to B S EN 10142-DX51D+ Z275

for interna l use.

S ta inles s stee l to B S EN 10088-2-1.4301

for external use .

Complies with BS 1369 Part 1: 1987 specification

for expanded me tal and ribbed lathing.

Installation

Fixing should be in accordance with BS 5492: 1990

Co de o f Prac tice for Internal Plas tering a nd B S 5262:

1991 Code of Practice for External Renderings

Refer to pa ge 17 for insta llat ion g uidelines .




Metal Lath and Arch Formers

Material

G a lvanised ste el to BS EN 10142-DX51D+ Z275

for internal use .

S ta inless ste el to B S EN 10088-2-1.4301

for external use.

Complies with BS 1369 Part 1: 1987 specification

for expand ed meta l and ribbe d lathing.

Installation

Fixing should be in accordance with BS 5492: 1990

Co de o f Prac tice for Internal P las tering a nd B S 5262:

1991 Code of Practice for External Renderings

Refer to pa ge 17 for insta lla tion g uidelines.

100mm

10mm

Code Min material Material Sheet weight Sheet Sizeweight (kg/m2) (kg) (mm)

R IB 148* 1.48 G alvanised Steel 2.59 2500 x 700

R IB 184 1.84 G alvanised Steel 3.22 2500 x 700

R IB 222 2.22 G alvanised Steel 3.89 2500 x 700

R IB 148S* 1.48 Stainless Steel 2.59 2500 x 700

R IB 184S 1.84 Stainless Steel 3.22 2500 x 700

*Not recommended for ceiling applicationsM ade to order

Rib Lath

Widely used as a plaster backing on ceilings,

walls and stud partitions. Rib Lath is also ideal

for refurbishing damaged or aged masonry walls

when a key for rendering is not certain due to

disintegration or softening of the wall face.




Installation of Lath

Diamond Lath

Ca tnic Diamond Lath ma y be f ixed

by (a ) nailing into ca st-in block

ba ckground w ith wa shers over the

lathing, (b) screwing into plugs in

drilled ho les w ith w as hers over the

lathing, (c) expanded type screw

fixings with washers over the

lathing, (d) wiring to prefixed

cha nnel sec tions, a ngles or cleats ,

(e) using screwed fixings, or (f)

battening out using preserved

timber battens with the lath fixed

as descr ibed be low.

Nails (BS 1202: P a rt 1), s tap les

a nd w ire for fixing lath sho uld b e

manufac tured from g alvanized or

sta inles s ste el. Nails for fixing to

timber ba ttens s hould b e 38mm

long w ith a 7mm hea d. Alternatively,

32 x 2mm staples may a lso b e used

if preferred .

If fitting with nails, s crew s o rproprietary screwed fixings, spacers

should be inserted behind the

la thing to a llow render flow throug h.

Fixing to Timber supports

For horizonta l work, C atnic Diamond

Lath sho uld b e fixed w ith the length

of the sheet running across the

timber suppo rts with all the strand s

sloping in the s ame direction.

Supports should b e at centres not

exc eed ing 350mm. Vertica l w ork

sho uld b e fixed w ith a ll stra nds

sloping downwards and away from

the finish fa ce. Using na ils o r

sta ples , s ta rt a t the centre of a sheet

and na il to eac h succe ssive support

working along the mid-line of the

shee t tow ards its edg es. The nails

or sta ples should be d riven in at a n

angle pointing away from the sheetce ntre thereby providing tens ion to

the sheet a s they a re a pplied.

Fixing should then be completed

from the c entre to the top a nd

botto m sides s ta rting a t the central

support and nailing at 100mm

centres , maximum.

Ends o f Ca tnic Diamond lath s hould

be lapped over supports not less

than 50mm and w ired tog ether at

150mm centres . Sides should b e

lapped not less than 25mm and tied

w ith tying wire a t a pproxima tely

150mm centres.

Fixing to Steel Channel

The lath sho uld b e fixed to ste el

channel using 1.22mm soft

ga lvanized steel tying w ires at not

more tha n 100mm c entres. The tie

should be mad e b y forming a hairpin

at the end o f a length of w ire, the

length being at least twice the depth

of the runner.

The ha irpin sho uld b e pus hed b endfirst up throug h the lath, c los e to

one side o f the runner a nd pulled

ba ck w ith one leg of the w ire on

either side of the runner. B oth

strands of wire should be pulled

taut a nd given a few twists w ith top

cutters before cutting any surplus

w ire. The tw ist ma y then be pus hed

flat a ga inst the la th.

Req uired tension in the s heet ma y

be a chieved by pa ss ing the leg of

the hairpin to one side or the other

of the la th junctions in a cc ordance

w ith the d irection of the d esired

tension. Continue installation as

for timbe r supports.

Rib lath

Ca tnic Rib Lath may b e f ixed to a

solid background using proprietary

f ix ings suitab le for hold ing the sheets

firmly in pla ce . The ed ge ribs sh ould

be nes ted w ith the a pex of the r ib in

contact with the background and

fixed to the ba ckground at 150mm

centres . Sheet end s s hould overlap

by a t leas t 50mm. A row o f fixings

should be applied at 600mm

horizontal spacing, starting 350mm

in from the sheet e nds and 200mm

in from ea ch of the top a nd botto m

sides (for horizonta lly pos itioned

sheets).

If fixing to supports, rib lath should

be fixed with the ribs running at right

angles to the s upports w ith the apex

of the rib in conta ct w ith the suppo rt

ensuring the spa ns do not exceed

600mm. The lath s hould b e fixed to

timber grounds using a nail or sta ple

driven throug h every rib w here itcross es ea ch s upport. When fixing

to ste el cha nnel, use 1.63mm or two

strands of 1.22mm soft galvanized

steel wire tied around the rib where

it crosses eac h support.

Lap ends of lathing o ver supports not

less than 50mm and wire toge therwi th

1.63mm tying w ire. S tainless stee l tie

wire should be used with stainless

steel lath. Where laps between

supports cannot be avoided, lap

ends not less tha n 100mm and

secure each pair of ribs together

with two row s o f 1.63mm tie wire

at approximately 100mm centres.

Sides of a djoining Rib Lath sheets

should b e pressed to gether with

the edge rib of ea ch s heet nested

and tied with 1.22mm tying w ire orpunch f ixed a t centres no greater

than 150mm.

Installation of Lath




Arch Formers and Accessories

Arch Formers and AccessoriesA quick, convenient and versatile way to createnon-loadbearing, perfectly formed arches in a range

of styles.Catnic Arch Formers adjust to fit walls from 90mm

up to 300mm thick and on up to 565mm thick when

used in conjunction with our extra soffit sections.

Each pack contains all the necessary formers to

complete both sides of the wall (or arch).

Material

G a lvanised ste el to BS EN 10142-DX51D+ Z275 for

internal use .

Installation

Fixed by ma so nry nails supplied. All fixings a nd

complete fixing instructions included with each pack.

NOTE: Catnic Arch Formers are non-loadbearing and are not

designed to support walls.

Verona †‡ Milano †‡

Brick to brick Ref no Rise Ref no. Risedimension (mm) (mm) (mm)

750 VE 0750 375

800 VE 0800 400

850 VE 0850 425

900 VE 0900 450

1000 VE 1000 500

1200 VE 1200 600 M I 1200 280

1500 VE 1500 750 M I 1500 330

1800 M I 1800 375

2400 M I 2400* 375

Milano

rise

60m m

brick to brick

dim ension 60m m

rise

60m m

Verona

brick to brick

dim ension 60m m

Verona w ith bridg ing se ctions

Product Ref. BS 0610

295x1200m m

610m m

8 0m m

6 0m m

Bridging Section

Extra Soffit Section

Accessories

Extra soffit section

Product Ref. ES 0295

† B ridg in g S ec tio n B S 0 610 (U sed to exten d a rc h fo rmer

spa n by up to 610mm)‡ Extra Soff it Section ES 0295 (Used to accommodate wa ll

thicknesse s o f 300-565mm)

* Made up of MI 1800 kit + bridging s ect ion BS 0610



Cavity Wall TiesAll Catnic wall ties are manufactured from high qualitystainless steel wire and strip materials to ensure that

structural design properties are maintainedthroughout the life of the structure.





Designed for traditional cavity

wall constructions, our ties

combine ease of use with the

safety and security standards

expected from all Catnic

products.

Material

Manufactured from 2.5mm (BW4)

and 3.3mm (BW2) austenitic

stainless steel wire to BS 1554:

1990 minimum 18/8 c om po sition fo r

proven corrosion resistance.

Quality c ontrol on the ties includes

chec ks on the incoming s teel for

chemical co mpos ition, dimensional

tolerances and mechanica l

properties . During m anufa cture,

regular visual and dimensional

checks a re made .

BBA As s e s s me nt

C ertifica te No. 91/2690.

Application – (see table below)

B W4/200 a nd B W4/225 a re DD 140

Type 4 c a vity w all ties and ma y be

spe cified w here butterfly ties w ould

have been used as deta iled in

Ta ble 6, B S 5628.

B W2/200 a nd B W2/225 a re DD 140

Type 2 c a vity w all ties and ma y be

spe cified w here doub le triang le ties

wo uld ha ve been used a s d etailed in

Ta ble 6, B S 5628.

The ties c a n be e a sily built into

brickwork or blockwork during

co nstruction. The ties a re sm oo th,

without sharp edges and are

des igned to resist the co llection of

mortar droppings.

B W4 and BW2 ties sho uld b e

insta lled a t a density

of 2.47 ties per sq uare metre

(450mm vertical and 900mm

horizonta l spa cing) in do mes tichouses a nd sma ll co mmercial

buildings.

Ties ma y be pos itioned ce ntrally or

offset in the cavity provided that

they are embedd ed a minimum of

50mm in both leaves.

The ma ximum c avity w idth s hould

not exceed the design ca vity

+ 25mm. In add ition to normal cavity

wa lls , B W4 ties ma y a lso be use d in

ca vity party wa lls , s ubject to loca l

authority approval.

Product Ref: BW4/200 BW4/225

BW2/200 BW2/225

Stainless Steel Wire Ties

Cavity Tie Size Design Specify DD140: Part 2 Design Wind(mm) (mm) Classification Speed

50-75 2.5 x 200 2 storeys up to 10m B W 4/200 Type 4 R ef. Table 1 page 26

76-100 2.5 x 225 2 storeys up to 10m B W 4/225 Type 4 R ef. Table 1 page 26

50-75 3.3 x 200 3 storeys up to 15m B W 2/200 Type 2 Anyw here in U K up to 56m /s

76-100 3.3 x 225 3 storeys up to 15m B W 2/225 Type 2 Anyw here in U K up to 56m /s

BW4 BW2

Tie position offset in cavity when using

partial fill insulation.

Retaining clip shown in correct position – i.e.

flat surface facing insulation

50mm min.

Stainless Steel Wire Ties




Cavity Wall Ties

Assessments/characteristic strengths – Wire and Strip Ties

BW4/200 DD140: Part 2 Catnic1987 type 4 requirement BW4/200

Tensile At serviceability 150 505

Load (N ) At failure 650 1333

C om pressive At serviceability 120 625


BW4/225 DD140 Part 2 Catnic1987 type 4 requirement BW4/225





BW2/200 DD140 Part 2 Catnic

1987 type 2 requirement BW2/200





BW2/225 DD140 Part 2 Catnic1987 type 2 requirement BW2/225





BB-2 DD140 Part 2 Catnic1987 type 2 requirement BB-2





BB-3 DD140 Part 2 Catnic1987 type 2 requirement BB-3

Tensile At serviceability 500 1529Load (N ) At failure 1800 4051






Cavity Wall Ties

BB-2 BT2-4BB-3

Stainless Steel Strip Ties

C avity Tie Size D esign Specify D D 140: Part 2 D esign W ind

(m m ) (m m ) C lassification Speed

50 0.6 x 19 x 191 3 storeys up to 15m B B -2 Type 2 Anyw here in U K up to 56m /s

75 0.8 x 19 x 220 5 storeys up to 15m B B -3 Type 2 Anyw here in U K up to 56m /s

50 0.6 x 19 x 120 Tim ber fram e 4 B T2-4 Anyw here in U K up to 50m /s

storeys up to 12m

Stainless Steel Strip Ties

Material

Manufactured from 0.6mm and

0.8mm austenitic stainles steel

to B S EN10088-2-1.4301 (18/8)

for proven corrosion resistance.

BBA As s e s s me nt

C ertifica te No. 91/2690.

(B B -2 &B T2-4)

Application

BB-2 stainless steel strip ties

are designed for fixing masonry to

mas onry in ca vity w alls o f domes tic

houses a nd sma ll co mmercial

buildings up to three s toreys in

height not e xcee ding 15 metres. The

ties are suitab le for ca vity w idths of

50mm w hen insta lled a t a density of

2.47 ties per sq uare met re (450mm

vertica l, 900mm horizonta l spa cing).

BB-3 stainless steel strip ties

are designed for fixing masonry to

mas onry in ca vity w alls o f domes tic

houses a nd sma ll co mmercial

buildings up t o five sto reys but no t

exce eding 15 me tres in height. The

ties are suitab le for ca vity w idths of

75mm w hen insta lled a t a density of

2 .47 t ie s pe r s qua r e me tre . The BB-3

has been B RE assess ed for the

ab ove applica tion.

BT2-4 stainless steel strip ties a re

designed for fixing masonry to

timber fram ing in dw ellings of up to

4 storeys, up to a maximum height

of 12 metres. S uita ble for cavity

w idths of 50mm. The ties

a re s ufficiently flexible so as not to

ca use ca vity growth as a result of

the reduction of moisture content

in the timber and set tlement o f the

fram e s tructure. For tie dens ities

a nd height restrictions , refer to the

following BBA certificates: 4 storey

dw ellings , C ert No. 91/2690 de ta il

sheet 6; 2 storey dwellings,

C ert No. 91/2690 deta il she et 3.

B T2-4 ties a re supplied w ith s ta inles s

s te e l a nnula r ring 5 0 x 3 .3 5mm na ils .

All strip ties a re a vailab le in bo xes

of 250.

Product Ref. BB-2 BB-3 BT2-4




Cavity Wall Ties

Type 2 Masonry: General purpose

Type of structure & frequency

of use

Suitable for masonry cavity walls of

domestic houses and small

commercial buildings up to three

sto reys, i.e. not greater than 15m in

height, c omprising two lea ves of b rick

or blockwork of similar thickness in

the range 90mm to 150mm. May besuitable for cavity wa lls ha ving leaves

of disparate thickness or stiffness or

for cladding walls in high rise

buildings, but s hould o nly be used in

these situations if shown to be of

ad eq uate performance b y c alculation.

Density not less than 2.5 ties p er

sq uare metre.

Geographical location

S uita ble for buildings any w here in

the B ritish Isles, i.e. w here the ba sic

wind speed may be up to 56m/s.

Type 4 Masonry: Light Duty

Type of structure & frequency

of use

S uitab le o nly for ma sonry c avity

wa lls , c omprising two leaves of

similar thickness in the ra nge 90mm

to 150mm, in bo x form dome stic

dw ellings o f up to tw o sto reys a nd

no g reater than 10m in height. Not

suitable for cavity walls havingleaves of disparate thickness o r

sti ffness , for cladd ing w alls of a ny

type or for multi-storey s tructures of

more than two storeys.Density not

less than 2.5 ties per sq uare metre.

Geographical location

S uita ble for buildings a nyw here in

England where the ba sic wind

speed does not exceed 44m/s o r for

buildings o n tow n or city sites in

areas w here the bas ic speed d oes

not e xcee d 52m/s.

Wind Zones

A = B as ic wind speed≤ 44m /s

B = B as ic wind speed

> 44m/s ≤ 52m/s

C = B asic wind speed

> 52m/s

Universal IRC 85Universal IRC 85 Insulation

Reta iners a re de signed for reta ining

rigid b oa rd or minera l wo ol/fibre

insulation ma terial. Intended for use

with Catnic wire and strip, the IRC

85 may a lso be use d in conjunction

w ith B S 1243 doub le triang le ties.

Used in a cavity with a minimum of

25mm insulat ion, retainers sho uld

be c lipped o nto the ties and the f la t

face of the disc pushed against the

surface of the insulation.

Material

Injec tion moulded polypropylene,

orang e in colour, 85mm in diam eter

and ava ilab le in pac ks of 250.

Eac h clip bea rs the Catnic logo and

the B BA Certifica te numb er.

Universal IRC 45

IRC 45 Insulation Reta iners a re

des igned for use with BB-2 and

B B -3 ties for rigid bo a rd insulation.

Material

Manufactured from black

low-density polystyrene, 45mm

in diameter and available in packs

of 250.

References from DD140: Part 2: 1987Classification by end use.

Insulation Retainers

Universa l IRC 85

B B A

Assessment

Certificate

No. 91/2690

IRC 45

C

A

B




J oist Hangers and Truss ShoesCatnic manufactures a range of high quality singleand double piece hangers designed to securely

support timber joists and trusses. Applications arevaried and range from light duty timber to timberconnections, timber to block or brick, and timberto beam and girder trusses.




J oist Hangers and Truss Shoes

TWBS

Des igned for sec uring t imbe r joists

to brick or b loc k wa lls. Availa ble to

support joists in all standard width

and depth c ombinations from 38 x

100mm to 75 x 225mm.

Specification Information

P leas e spec ify jois t width and depth

(eg TWB S 38/225). P a c k of 25.

TWRBS

A TWBS hang er with a mec ha nica lly

fixed return fla nge d es igned to

provide ad ded loc ation and sta bility

during the c onstruction proces s .

Return flange dimensions are

a vailab le to suit individua l

requirements.


P leas e spe cify jois t width, depth

a nd inside top fla nge (eg TWRB S

50/200/100). Mad e to o rde r.

TWSBS

Tw o TWB S ha ng ers mec ha nica lly

jointed ba ck to ba ck by a s tradd le

plate to support joists which are

directly opposite each other, either

side o f a wa ll or bea m. The TWS B S

hang ers a re ava ila ble in the 38 x

100mm to 75 x 225mm size rang e

with the straddle dimensions to suit

individua l req uireme nts .


P leas e sp ecify jois t width, depthand inside to p flange (eg TWS B S

50/200/100). Mad e to o rde r.

Working Load Table

Hanger Nominal J oist Hanger Depth J oist Widths (mm)Type Depth (mm) (internal mm) 38 50 63 75

100 100 196 262 329 395

TW B S125 125 234 288 343 397

TW R B S150 140 272 314 356 399

TW S B S

175 165 310 340 370 401

200 190 348 366 384 403

225 215 386 392 398 405

TWBS Single Piece Joist Hanger TWSBSTWRBS

75mm

75mm

Ø 4mm

Ø 6mm

20mmØ 4mm


Masonry Hangers

Manufactured and fully tested to BS6178: Part 1: 1990,

Catnic single piece joist hangers are designed for fixing

timber joists t o ma so nry wa lls including s olid b loc ks

w ith minimum c omp res sive strengt hs of 2.8 N/mm 2. All

joist hangers a re q uick a nd ea sy to instal l and are

expected to have a life compa rable with that

of the b uilding in which the y a re use d.

Material

The TWB S joist ha ng er is fo rmed from a sing le piec e

of 2.5mm low ca rbon steel , pre-galvanised to BS EN

10142-DX51D+ Z600. The TWRB S a nd TWS B S prod uc ts

a re fitted w ith mec hanica lly jointed return flang es a nd

straddle plates respectively, avoiding the use of any

welds .

Se e pa ge 30 for typica l jois t hang er applica tions and

insta llat ion deta ils.

For 150mm de ep joists a nd ove r, joists

ha ng ers typ es TW, TWR, TWS a re

manufactured 10mm less in depth to allow

for notching and regularisation of timber

joints

NOTE: For sizes outside the sta ndard range

two piece w elded joist hang ers type s TW,TWR a nd TWS are ava ilab le ma de -to-order.

Co ntac t Technica l Se rvices Depa rtment for

further Information on 029 2033 7900.Working Loads (in Kg)forJ oist Hangers Built into Blockworkof 2.8N/mm2 Compressive Strength




TTL

The TTL Ha ng er is p rinc ipa lly

designed for medium duty joist

trimming whe re the joist d epth d oesnot exc eed 225mm. They a re

supplied with straight, vertical back

plates so tha t they may be ea sily

formed in-situ to meet the exact

requirements of the application.

TTL Hang ers w ill ac co mmod at e joist

w idths from 38mm to 100mm. TTL

Hangers s hould b e na iled through

all fixing holes using 30mm long

ga lvanised plasterboa rd nails .


Please specify joist width (eg

TTL50). P a c k o f 100.

Product Ref. TTL

TT Mini

The TT Mini Ha ng er p rovide s lig ht

duty timber to timber connections,

supporting joists up to 100mm deepand 50mm w ide. TTL Mini Hang ers

should be nailed through all fixing

holes us ing 3.75 x 30mm

(9 gauge) long square twist nails.


P leas e s pecify jois t width

(eg TTM38). P a c k o f 100.

Material

TTL a nd TT Mini ha ng ers a re

manufactured from 1.0mm single

piece g alvanised s teel to B SEN

10142-DX51D+ Z275.

Product Ref. TTM

GTS

The G TS G irde r Truss S hoe Han ge r

is d esigned to be f ixed to girder

trusses and support incomingtrusses perpendicular to the g irder.

The vert ica l b a ck p la te s a re s upplie d

straight to enable the hang ers to be

fitted sec urely in pos ition o n site to

suit ma ny girder depth a nd w idth

co mbinations. G irder truss shoes

are available to accommodate truss

w idths from 38mm to 100mm. If a

G TS Ha n g e r is u s ed w h e re t he g ird e r

chord is less than 120mm, timber

blocking of a suitable size should

be introduc ed.

G TS ha nge rs should be na iled

through all fixing holes using 3.75

x 30mm (9 gauge) square twist

sheradized nails .


P leas e spec ify truss w idth

(eg G TS 38). P ac k of 25.

Material

G irder Truss S hoe ha nge rs a re

manufactured from 1.2mm single

piece g alvanised s teel to BS EN

10142-DX51D+ Z275.A

25mm

40mmØ 4mm

TTL Hanger TT Mini Hanger

B

A

Ø 3.5mm

25mm

50mm

Medium and Light Duty hangers Girder Truss Shoe Hangers

TTL, TTM & GTS Dimensions

TTL Joist/Truss widths (mm)

38 44 50 63 75 100

D im A (m m ) 314 311 308 302 296 283

D im B (m m ) 149 146 143 137 131 118

Load carrying cap acity 680kgs

TTM Joist/Truss widths (mm)

38 44 50 63 75 100

D im A (m m ) 71 68 65 – – –


GTS Joist/Truss widths (mm)38 44 50 63 75 100

D im A (m m ) 262 259 256 250 244 231

D im B (m m ) 117 114 111 106 99 86


B

A

4mm ø

25mm

100mm

GTS Hanger





The ha nger ba ck plate s hould lie fla t

ag ainst the supporting ma sonry with

a ny projec ting mortar ha ving first

been removed. Any packing of the

top f la ng e mus t cove r the f ull b e a ring

area a nd have a compress ive

strength at leas t eq ual to that of the

supporting masonry. Preferably,

pac king s hould be introduc ed b elow

the co urse o n w hich the ha nger is

supported.

P rior to any load s b eing a pplied to

the hanger or joist, at least 900mm

of bond ed b loc k work should be laid

ab ove and a llowed to mature. J oist

ends should be as tight as possible

ag ainst the hanger bac k flange and

securely fixed through the holes

provided in bo th side flang es. Any g ap

between the joist end and the hanger

back plate must not exceed 6mm.

The und erside o f the timbe r joist

should be notched to ac commoda te

the metal joist support to allow for

flush c eiling finishes . The ha ng ers

sho uld b e fixed t o joists w ith 3.75 x

30mm square twist sherardised nails

throug h a ll availa ble holes.

Typical Hanger Installations

TWSBS Joist HangerTWBS Single Piece Joist Hanger TWRBS J oist Hanger

GTS Girder Truss Shoe Hanger TTL Hanger TT Mini Hanger

Installation of Hangers

Face Fix Hangers

FFJ H

The Fa ce Fix J oist Ha nge r is

des igne d prima rily for heavy d uty

joist trimming a nd s ec urity timberjoists to b rick or bloc k wa lls w here

the joist depth does not exceed

225mm. They a re fixed using a

co mbination o f nails (30mm x 3.75

sq uare tw ist) and b olts (M12) or

co ac h sc rews (M10 x 40mm).

Material

Manufac tured from 2.5mm thick

ga lvanised mild s teel to BS EN

10142-DX51D+ Z275.

Application

S afe w orking load s will depend

upon the a pplica tion, s trength o f

mas onry and f ixings used . Pleas erefer to C at nic ’s Tec hnica l S ervic es

Department for more detailed

information.

Code J oist Width J oist Depth

FFJH 38 38m m 150-225m m

FFJH 50 50m m 150-225m m

FFJH 75 75m m 150-225m m

FFJH 100 100m m 150-225m m

Product Ref. FFJH

150mm

95mm

50mm

If you require any further technical as sista nce, plea se c all our Technica l Se rvices Depa rtment on 029 2033 7900




Restraint StrapsCatnic Restraint Straps are used to provide a firm,secure anchorage in a variety of situations. The range

includes straight, bent, twisted and fishtail productsfor tasks such as anchoring joists to wall truss rafters,flat roofs, pitched roofs, gable ends, etc.




Material

G alvanised mild s teel strip, 30mm x

5mm for horizonta l and 30mm x

2.5mm for vertical straps. Both

types are supplied with 6mm

diameter holes p unched a t 15mm

off-set centres .

Stock Lengths

600mm, 800mm, 900mm, 1000mm,

1200mm, 1500mm a nd 1600mm.

Weight

Horizonta l s t raps 1 .0kg/m

Ve rt ic a l s tra ps 0. 5kg /m

Thickness

Horiz on ta l s t ra ps 5 .0mm

Ve rtic a l s tra ps 2.5m m

Sizes

Horizontal straps are available to

order in a ny s ize from 100mm to

1600mm in 100mm increments.

Vertica l strap s a re a vailab le to o rder

in any s ize from 100mm to 1600mm

in 50mm increments .

Quantity

Horizontal straps supplied

in bundles o f 10.

Vertica l strap s supp lied

in bundles o f 20.

Installation of Horizontal Straps

No. 10 x 50mm plated wo od s crews

or 4mm Ø x 75mm co rros ion

resistant na ils s hould b e used for

fixing both types of strap. For timber

memb ers running pa rallel to the w a ll

restraint, straps should be fixed

ac ross at leas t 3 joists or raf ters

with 2 screws or round hea d na ils

to each timber member with solid

nogg ins in betw een. Straps should

be plac ed a t intervals not exceed ing

2 metres. For timber membe rs

running a t 90° to the w a ll, restraint

straps should have a minimum

length o f 600mm and be fixed w ith

at leas t 4 f ixings at not less tha n

110mm centres.

Installation of Vertical Straps

Holding d ow n straps s hould extend

at least 1000mm dow n the wa ll and

be fixed using a minimum of

4 screws. At leas t one s crew s hould

be located within 150mm of the

bottom o f the strap. Straps should

b e ins t a lle d a t ce n t re s no t e xce ed ing

2 metres.

Horizontal Strap Options Vertical Strap Options

H Type

F Type

T Type

L Type


Restraint Straps specifications

LT TypeU TypeV Type

L TypeT TypeC TypeLT Type

Restraint Straps




Restraint Straps

B = 100m mB = 150m m

C = 100m mstart of tw ist

A (O verall length)

= 1000m m

A (O verall length)

= 1000m m

A (O verall length)

= 900m m

A (O verall length)

= 1400m m

A (O verall length)

= 1000m mD = 150m m

end of tw ist

HL/1000/100

VC/1400/50/50 VU/1000/150/50

VL/1000/100

HLT/900/150/100

VLT/1000/100/150

B = 100m mB = 100m m

F = 150m m

betw een bends

G = 50m m

end of return

C

How to Specify Straps

Exam ples

1 Specify strap type, horizontal (H ), or vertical (V) H --/---/---/---

2 Select strap form at H , V, L, T, LT, F, C * or U H LT/---/---/---

3 Insert overall strap length –dim ension A H LT/900/---/---

4 Insert distance from end to first bend –dim ension B H LT/900/150/---

5 For horizontal tw ists, insert distance to start of tw ist H LT/900/150/100

–dim ension C (For vertical tw ists, insert distance to end of tw ist–dim ension D )

*For VC straps follow steps 1-4, then VC /1400/50/---

5 Insert distance from end to second bend –dim ension E VC /1400/50/50

For VU straps follow steps 1-3, then VU /1000/---/---

4 Insert distance betw een bends –dim ension F VU /1000/150/---

5 Insert length of return –dim ension G VU /1000/150/50

A (O verall

length)

= 900m m

Examples

B = 50m m

E = 50m m



J oist Struts, Roof Space Ventilation and Truss ClipsOur Herringbone J oist Struts are a quick, simple toinstall and effective method of providing the required

rigidity to floor joists.

Catnic’s Roof Space Ventilation System ensurescontinuous cross-flow ventilation to limitcondensation risks.

Our range of Truss Clips are designed to fix timber

trusses to wall plates quickly and efficiently.





Herringbone J oist Struts

Our Herringbone Joist Struts are

a quick, simple to install and

effective method of providing the

required rigidity to floor joists.

Lightweight, pre-drilled and

designed for plain head nail fixing,

their ease of use allows for fast

and efficient floor construction.

Material

P ress ed from g alvanised steel

to B S EN 10142-DX51D+ Z275.

Installation

Dome stic hous ing floors w ith joist

spa ns e xceeding 2.5 metres require

one row o f s trutting a t mid-spa n;

those exceeding 4.5 metres require

two row s at third-spa n. S trutting

sho uld b e fixed in a straight line,

using minimum 38mm long plain-

head nails, ensuring that the struts

are clear of the top and b ottom

edg es of the joists (minimum 5mm

clearance) and that there is

approximately 6mm clearance

between struts . Any gaps between

joist and w all a t the end of a row of

strutting should be blocked.

Ordering information

S upplied in pa cks of 30 units,

individually marked with

identif ica tion c odes . S ee ta ble

below for correct choice o f s trut

to s uit timber joist a nd c entre

dimensions.

J oist J oist joist height (mm)centres width 150 175 200 225(mm) (mm) joist references

600 63 H R B 1 H R B 1 H R B 2 H R B 2

600 50 H R B 2 H R B 2 H R B 3 H R B 3

600 38 H R B 3 H R B 3 H R B 4 H R B 4

450 63 H R B 5 H R B 5 H R B 6 H R B 6

450 50 H R B 6 H R B 6 H R B 7 H R B 7

450 38 H R B 7 H R B 7 H R B 7 H R B 8

400 63 H R B 9 H R B 9 H R B 10 H R B 11

400 50 H R B 10 H R B 10 H R B 11 H R B 11

400 38 H R B 11 H R B 11 H R B 12 H R B 12

Minimum

5mm

clearance

Maximum

1 ⁄8 joist depth

For joist sizes and centres no t listed, p leas e ca ll our Tec hnica l S ervices Depa rtment on 029 2033 7900

J oist Struts, Roof Space Ventilation and Truss Clips





Roof Space Ventilation System

The Catnic Roof Space Ventilation

System ensures continuous

cross-flow ventilation to limit

condensation risks in roof spaces

where the roof pitch exceeds 15°.

Manufactured from galvanised

steel, the ventilator is extremely

durable and will withstand much

punishment during and after

fitting. Versatile and simple to fit,

the adjustable ventilator can be

fixed by nailing to rafters up to

50mm thick and is suitable for

truss rafter centres up to 600mm.

Material

G alvanised steel to B SEN 10142-

DX51D+ Z275.

Installation

To meet B uilding Re gulations, roof

spa ce ventila to rs must be f ixed to

ea ch rafter. Ventilato rs a re fixed by

‘crossing ’ the elonga ted holes and

na iling in one ope ration using

galvanised felt nails or similar.

Eaves S offit Ventilat ors a re normally

f ixed to the bac k of fasc ia b oa rds

a nd w ill eas ily s upport the front

edg e of 6 to 10mm thick soffit

boa rds up to 300mm wide.


Roo f Spa ce Ventilato rs are supplied

in pac ks of 50, s ufficient for 25

rafter ends . Ea ves S offit Ventilat ors

a re pa cked in 20 x 2.4 metre lengths

and are available in brown or white.

Product Ref. RSV – Roof Space

Ventilator

Product Ref. SV/PVCU/(B or W)* –Soffit Ventilator

* Specify Brown or White.

Notes:

Catnic ventilators comply with

current Building R egulations: 1985

Pa rt F2/1990 edit ion. Any void abo ve

an insulated ceiling with a pitched

roof o f sq uare or recta ngular plan

must be c ross ventila ted by

permanent vents on tw o oppo site

sides of that roof. For roof pitches

over 15° , the vents must provide a

ventilation area equivalent to that of

a c ont inuous ga p a long each ea ve ,

or not less than 10mm wide. Ca tnic

Roo f Spa ce Ventilat ors co mply w ith

these requirements a nd also thos e

of the NHBC .

107mm

300mm

56mm

75mm

47mm 25mm

Roof Space Ventilator Eaves Soffit Ventilator





Truss Clips

Catnic galvanised Truss Clips are

designed to fix timber trusses to

wall plates quickly and efficiently

using galvanised nails. There are

two standard sizes and left and

right hand versions to ensure

suitability for nearly all fixing

applications. An added benefit of

this product is that it helps reduce

the likelihood of damage to

rafters and wall connector plates.

Material

Galvanised steel 1mm in thickness

to B S EN 10142-DX51D+ Z275.


TC38 a nd TC50 a re pac ked in boxes

of 100 units. TC L &TC R a re pa c ked

in bo xes of 400 i.e. 200 eac h of TC L

and TCR truss clips p er box.

Safe Working Loads for variations

in nail fixing specifications

Type of nail No. of nails used12 8

30 x 3.75m m 2.37kN 1.58kN

sq. tw ist

30 x 2.65m m 1.69kN 1.12kN

Plasterboard nails

Loads calculated in accordance w ith B S5268

Part 2: 1996. For TC 38 and TC 50.

N O TE: These loads apply to up lift only.

TC38 Truss Clip TC50 Truss Clip

TCL Truss Clip TCR Truss Clip

40mm

61mm

40mm

100mm

52mm45mm

100mm

Ø 4mm

61mm



Coil Mesh, Fixing Band and Frame AnchorsOur expanded steel mesh is used primarily as ananti-cracking reinforcement in the construction of

brick and block masonry.

Catnic Fixing Band provides an adaptable solutionto many every day fixing problems.

Catnic Frame Anchors provide an effective meansof securing window frames in masonry construction.





Coil Mesh

A high quality expanded

galvanised or stainless steel mesh

for use primarily as anti-cracking

reinforcement in the construction

of brick and block masonry. Coil

Mesh is available in a variety of

widths to suit most wall

constructions and is supplied

coiled for ease of handling.

Additional applications include

strengthening cornices, low walls

and balconies over door and

window openings.

M aterial

Ga lvanised steel to

B S EN 10142-DX51D+ Z275.

High quality stainless steel

to B S EN 10088-2-1.4301.

Installation

The mes h is la id in strips betw een

brick or bloc k courses lea ving

approximately 25mm clearance from

the faces of the work. Where mesh

joins a re req uired, ens ure a n overlap

of at least 75mm is provided.

The reinforcem ent is th en s imply

embed ded in the mortar for the

next course. In most instanc es,

ap plica tion every third co urse w ill

be sufficient.


Spe cify from the range o f widths

offered in the table above to suit the

pa rticular brick or bloc kwork used .

If stainless steel is required add

‘S S ’ to the product reference

i.e. C M64/20/S S .

Product Width Length of CoilReference (mm) (metres)

C M 64/20 64 20

C M 1 14/20 114 20

C M 1 78/20 178 20

C M 2 29/20 229 20

C M 3 05/20 305 20

Coil Mesh, Fixing Band and Frame Anchors

Fixing Band

An extremely versatile and

adaptable solution to many

every day fixing problems. The

Catnic Fixing Band can be easily

cut, bent and twisted to meet the

needs of many simple holdingdown, supporting, anchoring and

reinforcement jobs. It is supplied

in coils for ease of handling

and storage.

Material

10 metres o f 20mm w ide, 1mm thick

galvanised steel to BSEN 10142-

DX51D+ Z275.

Installation

Fix by na ils o r screws through holes

or elonga ted s lots a s required.


S upplied in 5 x 10 metre co ils p erbox.

Product Ref. SHFB

20mm

12mm x 7mm wide

Ø 3.5mm

Ø 7mm




Coil Mesh, Fixing Band and Frame Anchors

Frame Anchors

Our stainless steel Frame Anchors

provide an effective means of

securing window frames in

masonry construction by ensuring

secure anchorage to the

surrounding brick/blockwork.

Material

0.6mm austenitic stainless steel

to BSEN 10088-2-1.4301.

Application

Frame Anchors should be fixed at

450mm c entres us ing No. 10 x

32mm long sta inless s teel woo d

sc rew s a nd embed ded in every 6th

co urse of b rickw ork to ens ure firm

anchorage .


S upplied in boxe s o f 250.

Product Ref. FRA

100mm

50mm

34mm

Ø 6mm

27mm


Frame Anchors are used to

provide mechanical joints in

timber framing, eg. anchoring

trusses and rafters to wall plates,

trimming joists, timber studs to

floor plates etc.

Material



10142-DX51D+ Z275.

Application

Fra me Ancho rs sho uld b e fixed w ith

30mm x 3.75 sq uare tw ist na ilsthrough a ll ava ila ble na il holes.

Code Description

FFA/L Inside left hand

FFA/R Inside right hand

FFB /L O utside left hand

FFB /R O utside right hand

Product Ref. FAA and FAB

FAA/L FAA/R FAB/L FAB/R

125mm

58mm




Miscellaneous Building ProductsProducts include wall connectors, nail plates,toothplate connectors and angle brackets




Miscellaneous Building Products

Catnic’s wall connector is a

simple yet effective system for

tying new masonry walls to

existing walls.

Manufactured from stainless steel

throughout the Stronghold Wall

Connector is both strong and

extremely durable. The ties twist

into place and are designed to

slide into position to suit any type

of coursing. One pack will fix a

single skin of masonry up to 2.4

metres and is suitable for wall

thicknesses between 60mm and

250mm. All the required fixings

and detailed fitting instructions

are found on the reverse of each

pack.

Material

High-quality stainless steel,

B S EN 10088-2-1.4301.

BBA A s s e s s me nt

C ertific a te No. 89/2325.

Specification

S trong hold Wall C onnec tor may

be used to provide simple lateral

support to ma sonry wa ll panels

in conversion, extension and new

building works in the context of BS

5628: P a rt 1: 1978 (1985).

The system is able to acc ommod ate

vertica l movem ent of up to 10mm,

due fo r example to differential

foundation movement, w ithout

a s ignif ica nt loss of s trength.

The des ign s hea r streng th of the

system is 4kN over the height of two

connectors (2.4 metres) when used

w ith 3.5N/mm2 bloc kwo rk in

situations up to 3 storeys high

(8 met res m a ximum).

Weathersealing

The vertica l joint be tw een th e

existing wall and the outer leaf

of the new w all should bewe athersealed either by:

i A pre -compre s s e d s e a ling s t rip

or po lyme r-b a s e d s e a la n t a pp lie d

behind the w all connec tor as

sho w n in Fig. A, or

ii The junct ion perpend should b e

sea led with a pre-compressed

sea ling strip o r polymer-bas ed

sea lant a lso show n in Fig. A.

Notes

In line with Building Regulations,

reference s hould be mad e to yo ur

local authority since additional

wea therproofing may be req uired,

eg. a vertica l damp-proof c ourse

cut into the e xisting w a ll. When

more than 2 connec tors are used,

(ie. fo r heights exce eding 2.4

metres) slot additional connectors

into the low er connectors a nd

co ntinue the fixing p roced ures.

Ordering Information

One pack will fix a single skin

of mas onry up to 2.4 metres a nd

conta ins tw o 1.2 metre s ta inless

steel wall connector carriers, 10 wall

connec tor t ies a nd 5 stainless s teel

c o a c h s c re w s (M6 x 50m m), w a s h e rs

and w all plugs (10mm diameter)

tog ether with co mprehensive fitting

instructions.

Product Ref. SWC

See pag e 21 for product

dimensions.

Vertical DPC

Existing

wall

Outer leaf Inner leaf

Sealing strip

or sealant

Stronghold Wall Connector




Miscellaneous Building Products

If you require any further technical as sista nce, plea se c a ll our Technica l Se rvice s Depa rtment on 029 2033 7900

Nail plates a re use d to butt join or

co nnect tw o timbers tog ether. They

are fixed us ing 30mm x 3.75 sq uare

tw ist na ils t hroug h a ll the nail holes.

Application

No loa ds are given for the nail plates

as this is determined b y the number

of nails use d a nd the type of t imber

being joined.

Nail Plates

Toothplate Connectors

Material



10142-DX51D+ Z275.

Code Size (mm) Qty/Box

N P85/87 85 x 87 100

N P85/175 85 x 175 100

N P170/175 170 x 175 50

The Too thplate Co nnec tors a re

double s ided a nd are used w ith

12mm diameter bolts when bolting

tw o timbe rs toge ther. The co nnec tor

is place d be tween the timbers w ith

the bolt passing through the timbers

and the c entre of the connec tor. The

teeth of the c onnector bite into the

timbe r to produce a s tronger joint.

Material



10142-DX51D+ Z275.

Code Bolt size Outside diameter

TPD 50 M 12 50m m

TPD 63 M 12 63m m

Angle Brackets

Angle Brackets a re des igned to

suppo rt timbe r to timber or timbe rto s teel memb ers linking a t right

angles (as in trimming). Fixed either

by us ing 30mm x 3.75 squa re tw ist

nails, o r M8 co a ch s crew s/bo lts, o r

M10 bo lts.

Material



10142-DX51D+ Z275.

Application

Safe working loads depends on theapplica tion a nd f ixings used.

Code Width (mm) Qty/Box

AB 90/90 90 x 90 x 63 100

AB 150/90 150 x 90 x 63 10090mm

63mm

90mm or

150mm

Product Ref. TPD

Product Ref. NP

Product Ref. AB




Recommended Specification Clauses



Internal Plaster and External Render work

Substrate: Masonry and board backgrounds are to

b e fre e o f d e le te rio us s u bs t a nc e s s u c h a s m o uld , o il o r

greas e and be a deq ua te ly prepared to ac commoda te

the f inished surfac e, a ll beading a nd a ttendant f ixings

at the s pecified de pths.

At exte rnal co rners fix C at nic … Supasave (1) … ang le

bea d, reference … SS2.40 (2) … manufactured in…

galvanized steel/stainless steel/PVC-U (3) … Install in

ac co rda nce w ith Catnic published recommenda tions

with wings … embed ded in dabs of the same material

used for the undercoat/ fixed using corrosion resistant

galvanized/ stainless steel nails (4) … a t nominal 600mm

spacing, wire tied where jointed to lathing and with

bea d lengths jointed b y a lignment do wels .

At ab utments to openings, w indow s, framing a nd other

internal co rners, fix C atnic … 13mm Plaster stop bead

(1)… , referenc e… PS13/2.4 (2) … manufactured in…galvanized steel/stainless steel/ PVC-U (3) … maintaining

the required plaster depth. Fit plasterboard edging

bea ds reference … PBEB13/3.0 (2) … with the long flange

to the… front/ rear … f a ce . Ins t a ll in a ccor d a nce with

Ca tnic published recommenda tions w ith wings …

embed ded in dabs o f the same material used for the

undercoat/ fixed using corrosion resistant galvanized/

stainless stee l nails (4) … a t nominal 600mm s pac ing

a nd w ire tied w here jointed to lathing.

Form spe cified mo veme nt joints /c ont rol joints throug h

the w hole of the plas ter/render depth a nd fix C atnic …

13mm M ovement bead (1) … , referenc e… MB13/3.0 x10

(2) … manufactured in… galvanized steel/ stainless

steel/PVC-U (3) … Instal l in a cc ordance with Ca tnic

published reco mmenda tions with wings … embedded in

dabs of the same material used for the undercoat/ fixed

using co rrosion resistant ga lvanized/ stainless steel nails

(4) … at nominal 600mm spacing and wire tied where

jointed t o lat hing.

Metal Lath

Subs trate : Mas onry /timber /steel . . . ba ckgrounds a nd

support wo rk are to b e free of d eleterious s ubsta nces

such as mould, oil or grease with all supports securely

anc hored into the ba ckground a nd pos itioned a s

recommended within the Catnic technical literature.

Apply Ca tnic .. .Diamo nd lath /Rib lath (1)... Re ferenc e

...DL111 /R IB 148 (2)... ma nufac tured in .. .ga lvanized

ste el /s ta inless ste el (3)... using fixings a nd fixing

methods in ac corda nce w ith the manufacturers

published recommendations ensuring the lengths of

the sheets run across the s upports a nd the slope of

the strands is in the same direction.

Substrate: Mas onry/Timber w ork is t o b e pred om inantly

free of d eleterious s ubsta nces such a s mo uld, o il or

grease a nd be s oundly prepared a nd aligned to

accommodate the building components .

Coil Mesh

Apply anti-cracking reinforcement, Ca tnic c oil mes h,

reference… C M178/20 (2)… manufactured in…

ga lvanized ste el/sta inles s ste el (3)… Install in

accordance with the manufacturers recommendations,

embedded in mortar joints … every third c ourse /ove r

op enings /w ithin co rnic es (4)

Wall Connectors

Insta ll Ca tnic … S trong hold/Va lue Wa ll C onn ec tor (1)…

wa ll connec tors , reference … S WC / VWC (2)…

positioned a t junctions of existing and new mas onry

as deta iled in drawings. Instal l in ac co rda nce w ith the

ma nufac turers instructions w ith ties fully emb edd ed in

morta r joints.

Wall Ties

Fit C atnic … w ire/s trip (1)… w all ties reference …

B W2/225 /B B 3 (2)… ens uring t he end s a re fully

emb edd ed in mortar and drips lie c entral in the c avity.

Where highlighted, specify the appropriate profile (1), product reference (2), material (3) and fixing method (4)

to meet your specification requirements. The products and references used here are examples only.

Health & Safety: Insta lla tion to b e c arried out in acc ordance with HSE guidelines a nd reference should be mad e to

the Ca tnic g uide to sa fe s torage, handling a nd a pplica tion on s ite .





Insta lla tion should be in a cc ordance with the

manufac turers published reco mmenda tions a t a density

of not less than 2.47 ties per sq uare metre, spa ced

450mm vertica lly, 900mm ho rizo nta lly.

Timber to Timber and Masonary Connectors

Catnic … s ingle piece joist ha nge rs/girder truss sho e/

Trus s c lips (1)… referenc e… TWB S 50/150 /G TS 38 (2)…

installed in… timber to m a so nry/timbe r to timber (4)…

co nnections in acc ordance with the manufac turers

published recommendations. Fix using … 30mm long …

ga lvanized p las terboa rd na ils/3.75 x 30mm ga uge

sq uare twist s herad ised nails (4)… through a ll ava ila ble

holes .

Roof Space Ventilation

Fit Catnic roof space ventilator, reference RSV to each

rafter, installed in accordance with the manufacturers

published recommendations. Fit using galvanized feltnails or equivalent. Install Catnic PVC-U eaves soffit

ventila tors, reference … S V/P VC U/W / S V/P VC U/B (2)…

colour… w hite / brow n (1)… fitted … be hind t he lip o f the

fasc ia boa rd/along the b ac k edge of the so ffit

lining/whe re sho w n on the d raw ings (4)... in ac co rdanc e

with ma nufac turers published reco mmenda tions.

Herringbone J oist Struts

Fit C a tnic Herringb one joist s truts referenc e… HRB11

(2)… positioned … as indica ted in the draw ings /in a row

at mid-span for spa ns >2.5m, <4.5m /in two row s a t

third spa n whe re spa ns a re > 4.5m (4)… Insta ll in

ac co rda nce w ith manufac turers published

recommendations.

Restraint Straps

Fit Catnic restraint and holding down strap references

… HL1000/150 / HL120 0/150 /HL1600/150 / VL600/100

/VL1000 /100 (2)… pos itioned as indica ted in the

drawings. Install using No 10 x 50mm plated wood

screws or 4mm x 75mm corrosion resistant nails for

both strap types follow ing the ma nufac turers published

recommendations for fixing.




1 All COS HH related q ueries sho uld b e direc ted t o

the Hea lth a nd S afety Office r on 029 2033 7900.

2 Product Name

a ) Metal Products: w all ties , insula tion reta iners,

restraint s traps , jois t hange rs , truss shoes , truss

clips, frame anchors, herringbone joist struts,

ventilators, wall connectors, strapping, ceiling

supports a nd Qw ikPos t (fence pos t supports).

b ) Mesh Products: coil mesh, expand ed meta l

lath, plasterer’s bea d and a rch f rames .

3 Uses

All produc ts s hould b e used in a cc ordance with the

Compa ny’s recommenda tions a nd co mply with the

deta i ls shown on theArchitects ’/Eng ineers ’ drawings .

4 Material Specification

All prod ucts are produc ed from the fo llow ing:

i) Hot d ipped ga lvanised s tee l to BS EN 101421991 with or without applied polyester powder

coa t ing : or

ii) Sta inless s teel to BS EN 10088-2: 1995 and

BS 1554: or

iii) S emi-rigid P VC: o r

iv) Zinc pho spha te mild s teel to BS 1449:HR4 with

applied po lyester pow der coa ting.

5 Health Risks

The products a re c onsidered a s no n-haza rdous to

health under normal conditions of use.

6 Handling Precautions

Gloves should be worn to avoid injury from any

sharp edges. In event of a cut, the injury is to be

treated by a trained first-aider. When lifting or

ca rrying, c onsideration must b e g iven to s ize a nd

weight of the product. C aution should b e exercised

when mechanical handling, ensuring the load is

evenly ba lanc ed a nd the straps or s lings sec ure.

7 Additional Risk Factors

P roce ss es suc h as w elding, burning, cutting or

grinding c a n result in vaporising the meta l or

generating airborne pa rticles tha t ma y present

ad ditional haza rds. Appropriate P P E must a lwa ys

be w orn. The products are not subjected to a n

Occ upational Exposure Sta nda rd.

8 Storage

Unless req uired fo r immed ia te use on s ite, a ll

produc ts sho uld be s tored in a c lean a nd dry

environment. Meta l/mes h produc ts sho uld b e

stored on pallets or suitable racking where

practicable .

Do not leave i tems projecting that c ould c aus e

injury a nd a void sto rage in high traffic a reas w here

risk of da mag e is increased .

9 Application

All produc ts s hould be us ed in a cc ordance with themanufacturers recommendations outlined in this

brochure, and should comply with the details

shown on the Architects ’/Eng inee rs ’ d raw ings .

Do not use damag ed goods . Pac kag ing to be

removed w ith ca re and disposed of in a s afe

manner. When disposing of a ny C atnic products or

pac kaging, due co nsideration must be g iven to the

environmental impac t of the method of dispos al .

10 Emergency Actions

a ) S pilla ge No t a pplic ab le

b ) Fire No s pec ia l prec autions b ut a vo id

inhalation of smoke and fume

c) Firs t Aid Norma l f irs t -a id re qu ire me nts .

Trea t a ll cuts a nd a bras ions

d ) In jurie s Min imis e ris k o f in jurie s b y s t ric t

adherence to all instructions.

Theinformationgiveninthispublicationwascorrecttothebestofourknowledgeatthedateofpublication.However, Catnic reserves the right to revise product specifications

described herein without prior notice. Users and specifiers must satisfy themselves as to the suitability of any particular product or detail for a specific application.

Control of Substances Hazardous to HealthRegulations 1999

Substances for use at work provision of information: Catnic Products




Ca tnic is a C orus G roup compa ny.

Further Information ca n be fo und on the

Corus website at www.corusgroup.com

Co pyright 2002

Corus

Design b y S even 029 2037 0960

www.catnic.com

C t i

catnic building components technical guide

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