bw industries : steel roof purlins

making steelwork

INDUSTRIES

Purlins

TECHNOLOGY

2BW Purlins TEL 01262 400088 • EMAIL [email protected] • WEB www.bw-industries.co.uk

Introduction .................................................................................................... 3

Design and Certifi cation .................................................................... 4

Building Details ......................................................................................... 6

Purlins and Rails – Z Section ...................................................... 8

Purlins and Rails – Cee Section .......................................... 10

Eaves Beams – E Section ......................................................... 12

Purlin Systems ...................................................................................... 13

Sleeved System ........................................................................ 14

Butt System .................................................................................. 16

Lap System ................................................................................... 17

Heavy End Bay System .................................................... 18

Roof Variations ..................................................................................... 19

BW Cleats & Packer Plates ...................................................... 21

Purlin Ancillary Items & Accessories .............................. 22

Eaves Beam Ancillary Items & Accessories ............ 25

Side Rail Systems ............................................................................. 27

Sleeved System ........................................................................ 28

Butt System .................................................................................. 29

Horizontal Cladding System ........................................ 30

Side Rail Ancillary Items & Accessories ...................... 32

BW Cleats and Riveting .............................................................. 34

Door and Window Trimmer Cleats .................................. 35

Fire Restraint Wall System ........................................................ 36

Material Weights ................................................................................. 37

Literature ..................................................................................................... 38

Software and Detail Sheets ..................................................... 39

Fire Restraint Wall System Contents

About technologyThe material is steel, the technology is Surebuild. Lightweight, load bearing framework for all applications – industrial, commercial, modular and domestic. The Surebuild name refl ects the ongoing product development, independent testing and analysis, manufacturing speed and accuracy, and overall cost effectiveness.

Surebuild – solutions in steel

TECHNOLOGY

Surebuild is a registered Trademark of BW Industries Ltd.

3 BW PurlinsTEL 01262 400088 • EMAIL [email protected] • WEB www.bw-industries.co.uk

Fire Restraint Wall System Introduction

The Company

BW Industries is a privately

owned company providing

steel components for the

construction, manufacturing and

agricultural sectors from our

13,175m2 production facility.

BW Industries are also suppliers

to the domestic market and

export to other countries

worldwide.

As a refl ection of our clear

commitment we have gained

a leading position in the steel

sections industry by our

insistence without compromise,

that all components are of

high quality and are accurately

manufactured whilst remaining

cost effective.

Since its establishment in 1974,

BW Industries are proud to have

an excellent reputation in the

construction and manufacturing

sectors, established through

continued commitment and an

unrivalled service level.

Quality

BW Industries has a Quality Assurance

System which is accredited to BS EN ISO 9001-2008 and that covers all aspects of our operations, and is CE approved.

Our excellent personal service backed up by commitment to quality ensures

that BW Industries achieve the highest

levels of customer satisfaction.

Sustainability

BW Industries are committed to

supporting and developing sustainability

throughout all its departments.

Steel is one of the most recycled materials used in the world. Use of recycled material does not compromise the quality of new steel produced by it.

By addressing key issues such as product design, CO2 emissions, recycling of waste materials and prudent use of all resources, BW Industries take responsibility for managing environmental issues.

Products

The wide range of products

supplied by BW Industries may

be split into the following areas:

n Purlins, Sheeting Rails and

Eaves Beams

n Mezzanine Floors

n Structural Walls and Framing

n Surebuild Structural Framing

n Offsite Modular Buildings

n Cold Formed Framed Buildings

n Grainwalling

n Laser Punching and Notching

This brochure relates

specifi cally to Purlins, Sheeting

Rails and Eaves Beams.

BW Industries Purlin Division carries out design and manufacture of light steel pre-galvanised steel purlins and sheeting rails.

BW standard sections range from 121mm to 341mm with thicknesses from 1.2mm to 3mm and the systems are available in Zed or Cee section profi les which are manufactured from pre-galvanised steel coil with a guaranteed yield strength of 450 N/mm2.

In addition we also offer bespoke

sections ranging from 50mm to

500mm with thicknesses from

0.5mm to 6mm, manufactured to

individual client’s requirements.


Fire Restraint Wall System Design and Certifi cation

Design Software

BW Industries have developed

software for the design of purlins,

eaves beams, sheeting rails and

mezzanine fl oor beams. This is

provided as an aid to designers and

specifi ers to allow selection of the

optimum section.

It has been developed following

extensive testing of sections

under the SCI (Steel Construction

Institute), which was undertaken

to accurately determine bending

capacities.

The software has been developed

by a chartered structural engineer

and has been independently

checked and verifi ed by the SCI.

Fully comprehensive technical

support is available from our design

team.

Detailing

BW Industries produce standard

detailing sheets which allow

detailers to order standard

sections and components.

The information on these sheets

is used to generate a CAM data

fi le which is then fed directly

into the manufacturing system.

Standard details are available

on a number of electronic

draughting packages such as

Autocad and Tekla.

BW Industries also have facilities

to produce detail drawings as

required for any project.

Non standard sections and

non standard hole sizes

and or punchings can be

accommodated on request.

Ordering and Manufacture

In order to facilitate the ordering

process, BW Industries have

a range of standard drawings

and detail sheets which can be

completed by the client. These

are then used to prepare an

acknowledgment, which itemises

precisely what is required. The

information on drawings and detail

sheets is programmed into a cam

data fi le which is transmitted

directly to the rolling of fabrication

plant.

Ancillary items are produced in

conjunction with the manufacture of

major components.

All major components are normally

ink jet printed to show what they

are and from which materials they

have been formed. This process

is so that there is a trail which

shows exactly what has been

manufactured.


Fire Restraint Wall System Design and Certifi cation contd

Design

All of BW Industries steel section

property information and load

tables have been independently

assessed and verifi ed under

the “SCI Assessed” Scheme

“Calculation of the member

resistances”. The section

properties are calculated in

accordance with BS-EN 1993-1-3

(Design of steel structures,, Part

1-3 General rules – Supplementary

rules for cold-formed members and

sheeting BSI 2006).

CE Marking

BW Industries Limited

“Factory Production Control” was

third party assessed against

EN 1090-1:2009+A1 2011, by SGS

UK. We achieved accreditation to

EXC2 and standard ISO 14731 and

ISO 3834.

This certifi cation covers the

following products: Steel

Structural Purlins, Mezzanine Steel

Channels, Fabricated Structural

Steel Assemblies and SureBUILD

Engineered Wall Panels.

Dispatch and Supply

BW Industries have a team of

experienced personnel who hand

pick the items for dispatch and

load these onto the vehicles that

have been arranged for onward

transportation.

Depending on the end users

requirements, specialist vehicles

with on board lifting equipment can

be arranged to facilitate off-loading

at the delivery address.

Certification

BW Industries have developed design software based on the methodology in the relevant European standards and extensive testing of their product range.

This information has been independently assessed and approved by the SCI who are an internationally recognized authority in the fi eld of light gauge steelwork design and construction.

BW Industries are pleased to display the SCI logo and to confi rm that their products have achieved SCI Assessed status with the appropriate certifi cation.

Photograph of Zed Purlin undergoing load testing in the John Payne Building Laboratory at Oxford Brookes University as witnessed and documented by the SCI (Steel Construction Institute)


Fire Restraint Wall System BW Apex Ties

Fire Restraint Wall System BW Rafter Stays

Fire Restraint Wall System BW Snaptite Anti-sag Tie BW Zed Section BW Diagonal Ties

Fire Restraint Wall System Building Details

page 22

page 22

page 33

page 24

page 8


BW Cleat Details

BW Eaves BeamsFire Restraint Wall System BW Purlin Assembly Details

Fire Restraint Wall System BW Side Rail Supports

page 32

page 13page 12

page 21


Fire Restraint Wall System Purlins and Rails – Z Section

Range Gauges mm

Z121 1.3 , 1.4 , 1.5 , 1.6 , 1.8 , 2.0

Z141 1.3 , 1.4 , 1.5 , 1.6 , 1.8 , 2.0

Z151 1.3 , 1.4 , 1.5 , 1.6 , 1.8 , 2.0

Z171 1.3 , 1.4 , 1.5 , 1.6 , 1.8 , 2.0 , 2.3 , 2.5

Z201 1.4 , 1.5 , 1.6 , 1.8 , 2.0 , 2.3 , 2.5

Z231 1.5 , 1.6 , 1.8 , 2.0 , 2.3 , 2.5

Z261 1.6 , 1.8 , 2.0 , 2.3 , 2.5 , 2.9

Z301 2.0 , 2.3 , 2.5 , 2.9

Z341 2.3 , 2.5 , 2.7 , 3.0

Range Depthmm

Top Flange

mm

Top Lipmm

Bottom Flange

mm

Bottom Lipmm

Top Holemm

Bottom Holemm

Z121 121 56 17 51 19 44 42

Z141 141 56 17 51 19 44 42

Z151 151 56 17 51 19 44 42

Z171 171 67 17 62 19 44 42

Z201 201 67 17 62 19 44 42

Z231 231 78 17 71 19 44 42

Z261 261 82 17 74 19 44 42

Z301 301 92 19 84 21 44 42

Z341 341 102 21 94 23 44 42

All holes are 14mm diameter unless stated otherwise. All holes are punched in pairs on standard gauge lines.

n Designed in accordance with BS EN 1993-1-3

n Manufactured by cold roll forming of pre-hot dipped galvanized strip to BS EN 10346 with minimum tensile strength of 450 N/mm2 and Z275 coating

n Section ranges are referenced “Z” followed by three digits being the overall depth in mm

n Individual sections are referenced “Z” followed by fi ve digits the fi rst three being the overall depth in mm and the fi nal two being the gross material thickness in mm multiplied by 10 - eg: a 171mm deep, 1.5mm gauge purlin would be Z171/15

Product information required when ordering

purlin section size purlin overall length

Top Lip

Bottom Lip

Depth

Top Hole

Bottom Hole

Top Flange

Bottom Flange

Use the BW Building Wizard Software for accurate calculations

making steelwork

INDUSTRIES

A NEW INNOVATION FROM BW INDUSTRIES

Building Wizard Software

TECHNOLOGY

The software package facilitates cost effective design of purlins, side rails and mezzanine fl oor beams all in accordance with

current standards. An integral database allows for quick and accurate assessment of loadings including wind load and snow

load for all locations in the United Kingdom and Ireland. This all in one application enables production of detailed reports for

submission to any checking authority. See our website or contact our sales team to request the latest version.

Gauge

Toppp Lip

Bottom Lip

Depth

Top Hole

Bottom Hole

Top Flange

BottomFlange

Gauge


SectionReference

Weightkg/m

Second Moment of Area Section Modulus Radius of GyrationMomentCapacity

Major Axiscm4

Minor Axiscm4

Major Axiscm3

Minor Axiscm3

Major Axiscm

Minor Axiscm

Major AxiskNm

Z12113 2.59 74.01 23.05 12.07 4.24 4.81 2.68 5.03

Z12114 2.78 79.39 24.66 12.94 4.54 4.80 2.67 5.72

Z12115 2.97 84.70 26.23 13.81 4.83 4.79 2.67 6.40

Z12116 3.16 89.93 27.78 14.66 5.12 4.78 2.66 7.08

Z12118 3.53 100.20 30.77 16.34 5.68 4.77 2.64 8.40

Z12120 3.89 110.18 33.64 17.97 6.22 4.75 2.62 9.68

Z14113 2.79 105.74 23.12 14.81 4.24 5.53 2.59 6.17

Z14114 3.00 113.48 24.73 15.90 4.54 5.52 2.58 7.02

Z14115 3.20 121.13 26.32 16.97 4.84 5.51 2.57 7.87

Z14116 3.41 128.69 27.87 18.03 5.13 5.51 2.56 8.70

Z14118 3.81 143.52 30.89 20.11 5.70 5.49 2.55 10.33

Z14120 4.21 157.99 33.79 22.13 6.24 5.47 2.53 11.93

Z15113 2.89 124.17 23.14 16.25 4.25 5.89 2.54 6.77

Z15114 3.11 133.29 24.76 17.45 4.55 5.88 2.53 7.71

Z15115 3.32 142.31 26.35 18.63 4.84 5.87 2.53 8.63

Z15116 3.53 151.22 27.91 19.79 5.13 5.86 2.52 9.55

Z15118 3.95 168.72 30.94 22.08 5.70 5.84 2.50 11.35

Z15120 4.36 185.81 33.85 24.32 6.25 5.83 2.49 13.11

Z17113 3.32 186.23 37.64 21.56 5.75 6.73 3.03 7.54

Z17114 3.57 200.06 40.33 23.16 6.16 6.72 3.02 8.79

Z17115 3.82 213.74 42.97 24.75 6.57 6.71 3.01 10.04

Z17116 4.06 227.29 45.57 26.31 6.97 6.70 3.00 11.27

Z17118 4.54 253.96 50.64 29.40 7.76 6.69 2.99 13.69

Z17120 5.02 280.09 55.54 32.43 8.52 6.67 2.97 16.07

Z17123 5.73 318.27 62.59 36.85 9.63 6.65 2.95 19.55

Z17125 6.20 343.04 67.09 39.71 10.33 6.63 2.93 21.81

Z20114 3.90 292.20 40.43 28.81 6.17 7.77 2.89 10.94

Z20115 4.17 312.31 43.09 30.79 6.58 7.76 2.88 12.49

Z20116 4.44 332.25 45.70 32.76 6.98 7.76 2.88 14.03

Z20118 4.97 371.56 50.81 36.63 7.78 7.74 2.86 17.06

Z20120 5.50 410.14 55.75 40.44 8.55 7.72 2.85 20.04

Z20123 6.28 466.64 62.86 46.01 9.66 7.69 2.82 24.41

Z20125 6.79 503.41 67.41 49.63 10.37 7.68 2.81 27.25

Z23115 4.76 472.25 63.17 40.37 8.30 8.94 3.27 14.03

Z23116 5.06 502.66 67.06 42.97 8.82 8.93 3.26 16.07

Z23118 5.67 562.75 74.68 48.10 9.84 8.91 3.25 20.09

Z23120 6.28 621.87 82.09 53.16 10.83 8.89 3.23 24.05

Z23123 7.18 708.72 92.81 60.58 12.27 8.87 3.21 29.87

Z23125 7.77 765.42 99.70 65.43 13.19 8.85 3.19 33.68

Z26116 5.53 689.05 75.94 52.07 9.51 10.01 3.32 18.45

Z26118 6.20 771.92 84.63 58.34 10.61 9.99 3.31 23.35

Z26120 6.86 853.56 93.09 64.51 11.68 9.97 3.29 28.17

Z26123 7.85 973.74 105.36 73.59 13.25 9.94 3.27 35.29

Z26125 8.50 1052.34 113.26 79.53 14.26 9.92 3.26 39.94

Z26129 9.78 1205.94 128.40 91.13 16.21 9.89 3.23 49.04

Z30120 7.87 1299.79 134.69 85.32 15.02 11.49 3.70 33.92

Z30123 9.00 1484.83 152.78 97.47 17.06 11.46 3.68 43.42

Z30125 9.75 1606.17 164.48 105.43 18.39 11.45 3.66 49.65

Z30129 11.24 1844.04 187.04 121.05 20.96 11.41 3.63 61.87

Z34123 10.16 2149.05 212.63 124.69 21.36 12.99 4.08 51.30

Z34125 11.01 2326.33 229.18 134.98 23.04 12.97 4.07 59.34

Z34127 11.86 2501.54 245.38 145.14 24.70 12.95 4.06 67.29

Z34130 13.12 2760.50 269.04 160.16 27.12 12.92 4.03 79.05


Fire Restraint Wall System Purlins and Rails – Cee Section

Range Gauges mm

C121 1.3 , 1.4 , 1.5 , 1.6 , 1.8 , 2.0

C141 1.3 , 1.4 , 1.5 , 1.6 , 1.8 , 2.0

C151 1.3 , 1.4 , 1.5 , 1.6 , 1.8 , 2.0

C171 1.3 , 1.4 , 1.5 , 1.6 , 1.8 , 2.0 , 2.3 , 2.5

C201 1.4 , 1.5 , 1.6 , 1.8 , 2.0 , 2.3 , 2.5

C231 1.5 , 1.6 , 1.8 , 2.0 , 2.3 , 2.5

C261 1.6 , 1.8 , 2.0 , 2.3 , 2.5 , 2.9

C301 2.0 , 2.3 , 2.5 , 2.9

C341 2.3 , 2.5 , 2.7 , 3.0

Range Depthmm

Flangemm

Lipmm

Holemm

C121 121 54 17 43

C141 141 54 17 43

C151 151 54 17 43

C171 171 66 17 43

C201 201 66 17 43

C231 231 75 17 43

C261 261 79 17 43

C301 301 89 19 43

C341 341 99 21 43




n Section ranges are referenced “C” followed by three digits being the overall depth in mm

n Individual sections are referenced “C” followed by fi ve digits the fi rst three being the overall depth in mm and the fi nal two being the gross material thickness in mm multiplied by 10 - eg: a 171mm deep, 1.5mm gauge purlin would be C171/15




Depth

Lip

Lip

Gauge

Flange

Hole

Hole

making steelwork

INDUSTRIES



TECHNOLOGY






SectionReference

Weightkg/m


Major Axiscm4

Minor Axiscm4

Major Axiscm3

Minor Axiscm3

Major Axiscm

Minor Axiscm

Major AxiskNm

C12113 2.58 74.01 13.36 12.23 3.72 4.82 2.05 5.25

C12114 2.77 79.39 14.30 13.12 3.98 4.81 2.04 5.95

C12115 2.96 84.70 15.22 14.00 4.24 4.80 2.03 6.64

C12116 3.14 89.94 16.12 14.87 4.49 4.79 2.03 7.32

C12118 3.51 100.20 17.87 16.56 4.98 4.78 2.02 8.66

C12120 3.88 110.18 19.56 18.21 5.45 4.76 2.01 9.96

C14113 2.78 105.67 14.08 14.99 3.79 5.54 2.02 6.43

C14114 2.99 113.41 15.08 16.09 4.06 5.53 2.02 7.29

C14115 3.19 121.05 16.05 17.17 4.32 5.52 2.01 8.14

C14116 3.39 128.60 17.01 18.24 4.58 5.51 2.01 8.98

C14118 3.80 143.42 18.87 20.34 5.08 5.50 1.99 10.63

C14120 4.19 157.87 20.66 22.39 5.57 5.48 1.98 12.24

C15113 2.88 124.06 14.41 16.43 3.82 5.90 2.01 7.05

C15114 3.10 133.17 15.43 17.64 4.09 5.89 2.00 7.99

C15115 3.31 142.18 16.42 18.83 4.36 5.88 2.00 8.93

C15116 3.52 151.08 17.40 20.01 4.62 5.87 1.99 9.85

C15118 3.94 168.56 19.31 22.33 5.12 5.85 1.98 11.67

C15120 4.35 185.63 21.15 24.59 5.61 5.84 1.97 13.44

C17113 3.33 187.81 24.25 21.97 5.23 6.75 2.42 7.81

C17114 3.58 201.75 25.99 23.60 5.61 6.74 2.42 9.09

C17115 3.83 215.56 27.71 25.21 5.98 6.73 2.41 10.36

C17116 4.07 229.22 29.40 26.81 6.34 6.72 2.41 11.61

C17118 4.56 256.13 32.70 29.96 7.06 6.71 2.40 14.08

C17120 5.04 282.49 35.90 33.04 7.75 6.69 2.38 16.51

C17123 5.75 321.00 40.52 37.54 8.75 6.66 2.37 20.05

C17125 6.22 346.00 43.47 40.47 9.39 6.65 2.36 22.35

C20114 3.91 294.41 27.36 29.29 5.71 7.79 2.38 11.29

C20115 4.18 314.69 29.17 31.31 6.09 7.78 2.37 12.86

C20116 4.45 334.77 30.96 33.31 6.46 7.77 2.36 14.43

C20118 4.98 374.39 34.45 37.25 7.19 7.76 2.35 17.51

C20120 5.51 413.27 37.84 41.12 7.90 7.74 2.34 20.54

C20123 6.29 470.23 42.73 46.79 8.93 7.71 2.32 24.98

C20125 6.81 507.29 45.87 50.48 9.59 7.69 2.31 27.88

C23115 4.75 471.52 41.54 40.82 7.53 8.94 2.65 14.84

C23116 5.05 501.88 44.12 43.45 7.99 8.93 2.65 16.89

C23118 5.66 561.86 49.17 48.65 8.91 8.92 2.64 20.96

C23120 6.26 620.87 54.09 53.75 9.80 8.90 2.63 24.96

C23123 7.16 707.56 61.22 61.26 11.10 8.87 2.61 30.83

C23125 7.75 764.15 65.81 66.16 11.94 8.85 2.60 34.67

C26116 5.53 690.54 51.97 52.92 8.78 10.02 2.75 19.53

C26118 6.20 773.59 57.96 59.28 9.80 10.00 2.74 24.50

C26120 6.86 855.41 63.80 65.55 10.79 9.98 2.73 29.40

C26123 7.85 975.84 72.28 74.78 12.23 9.95 2.71 36.62

C26125 8.50 1054.61 77.76 80.81 13.16 9.93 2.70 41.34

C26129 9.78 1208.52 88.29 92.61 14.95 9.90 2.68 50.58

C30120 7.80 1288.47 89.43 85.61 13.25 11.49 3.03 35.04

C30123 8.93 1471.76 101.51 97.79 15.04 11.46 3.01 44.56

C30125 9.75 1609.07 113.51 106.92 16.96 11.46 3.04 51.35

C30129 11.24 1847.36 129.25 122.75 19.32 11.42 3.02 63.74

C34123 10.16 2152.39 147.22 126.24 19.69 13.00 3.40 53.23

C34125 11.01 2329.94 158.77 136.65 21.24 12.98 3.39 61.36

C34127 11.86 2505.42 170.10 146.95 22.76 12.96 3.38 69.40

C34130 13.12 2764.77 186.66 162.16 24.98 12.93 3.36 81.29


Fire Restraint Wall System Eaves Beams – E Section

Range Gauges mm

E195 2.0, 2.4, 3.0

E235 2.0, 2.4, 3.0

E300 2.0, 2.4, 3.0

E360 2.0, 2.4, 3.0

Range Depthmm

Flangemm

Lipmm

Holesmm

E195 195 90 20 65

E235 235 90 20 105

E300 300 90 20 170

E360 360 90 20 230

Depth Holes

Flange

Angle of Top Flange

from 0 to 20 degrees

Gauge

Lip

Lip

All holes are 14mm diameter unless stated otherwise. Web holes can be counter formed or plain.Packer plates can be supplied.

*Indented web Eaves Beams can be supplied on request (a maximum length applies).

SectionReference

Weightkg/m


Major Axiscm4

Minor Axiscm4

Major Axiscm3

Minor Axiscm3

Major Axiscm

Minor Axiscm

Major AxiskNm

19520 6.26 478.52 84.57 49.08 13.69 7.81 3.28 19.89

19524 7.46 567.16 99.63 58.17 16.14 7.78 3.26 27.06

19530 9.21 694.53 120.88 71.23 19.58 7.73 3.22 37.38

23520 6.89 736.90 89.97 62.71 14.02 9.24 3.23 25.42

23524 8.21 874.75 106.07 74.45 16.53 9.21 3.21 34.64

23530 10.15 1073.74 128.84 91.38 20.08 9.16 3.17 47.95

30020 7.91 1307.16 97.00 87.14 14.40 11.49 3.13 35.32

30024 9.44 1554.59 114.45 103.64 17.00 11.45 3.11 48.22

30030 11.68 1913.67 139.20 127.58 20.70 11.40 3.07 66.94

36020 8.85 2019.15 102.10 112.18 14.67 13.50 3.04 45.47

36024 10.57 2404.43 120.54 133.58 17.33 13.46 3.01 62.15

36030 13.09 2965.60 146.74 164.76 21.11 13.40 2.98 86.45


making steelwork

INDUSTRIES



TECHNOLOGY







n Section ranges are referenced “E” followed by three digits being the overall depth in mm

n Individual sections are referenced “E” followed by fi ve digits the fi rst three being the overall depth in mm and the fi nal two being the gross material thickness in mm multiplied by 10 - eg: a 195mm deep, 2.0mm gauge eaves beam would be E195/20


Fire Restraint Wall System Purlin Systems

Sleeved PAGE 14

Lap PAGE 17

Butt PAGE 16

Heavy End Bay PAGE 18

BW Industries produce four types of Purlin Systems, Sleeved, Butt, Lap and Heavy End Bay – these are detailed over the next few pages


Fire Restraint Wall System Purlins Sleeved System

Single Span

The sleeved purlin system is suitable for buildings with two or more bays and utilises single span length purlins with sleeves. The sleeves are formed from the same section as the purlins but are installed inverted.

The sleeves, which achieve a high degree of continuity over the purlin supports are fi tted at all penultimate rafter connections and staggered on all internal bays, allow economy of purlin section selection.

The system can be used for single span purlins and for double span purlins.

Double Span


Fire Restraint Wall System Sleeved System contd

Range Depthmm

Top Flange

mm

Top Lipmm

Bottom Flange

mm

Bottom Lipmm

Hole Ctrs.

mm

Lengthmm

Z121 121 51 19 56 17 220 574

Z141 141 51 19 56 17 240 614

Z151 151 51 19 56 17 265 664

Z171 171 62 19 67 17 290 714

Z201 201 62 19 67 17 350 834

Z231 231 71 19 78 17 410 954

Z261 261 74 19 82 17 460 1054

Z301 301 84 21 92 19 600 1334

Z341 341 94 23 102 21 750 1634



number of sleeves


BW ‘Z’ Section Sleeves

All holes are 14mm diameter unless stated otherwise. All holes are punched in pairs on standard gauge lines.*Cee Sleeves wrap around rail.


side rail section size side rail overall length

Range Depthmm

Flangemm

Gaugemm

Holemm

Hole Ctrs.

mm

Lengthmm

C121 125 54 2.0 45 220 574

C141 145 54 2.0 45 240 614

C151 155 54 2.0 45 265 664

C171 176 66 2.5 46 290 714

C201 206 66 2.5 46 350 834

C231 236 75 2.5 46 410 954

C261 267 79 2.9 47 460 1054

C301 307 89 2.9 47 600 1334

C341 347 99 3.0 47 750 1634

BW ‘Cee’ Section Sleeves

Holes for purlin ties at mid-span or one third and two thirds span points.Holes for purlin ties are 18mm diameter.

BW ‘Z’ Section Standard Hole Details Sleeved




Purlins Butt System

Holes for purlin ties at mid-span or one third and two thirds span points.Length of purlin is span less 6mm.Holes for purlin ties are 18mm diameter.

Holes for purlin ties at mid-span or one third and two thirds span points.Length of left hand span plus length of right hand span less 6mm.Holes for purlin ties are 18mm diameter.

BW “Z” Section Standard Hole Details Non-continuous

BW “Z” Section Standard Hole Details Double Spanning Butt-jointed

Fire Restraint Wall System Butt System

The butted purlin system is suitable for all building types but is primarily used in single span applications.

It is the simplest purlin system and can be used in inset and oversail confi gurations.

Non standard end confi gurations can be accommodated as required.

All holes are 14mm diameter unless stated otherwise. All holes are punched in pairs on standard gauge lines.Use the

BW Building Wizard Software for accurate calculations

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Purlins Lap System

The lap system is a further variation of the sleeved system which is suitable for buildings with fi ve or more bays. Extended single span purlins are alternatively inverted and overlapped with each other.

The lapped section has the benefi t of achieving a high degree of continuity over the purlin supports thus allowing economic section selection.

The avoidance of sleeves means that there are fewer system components leading to reduced site erection time.

Penultimate Bay Purlin

End Bay Purlin Inner Bay Purlin

Range Centres End Centres

Z121 420 630

Z141 460 690

Z151 470 705

Z171 500 750

Z201 560 840

Z231 640 960

Z261 740 1110

Z301 860 1290

Z341 1020 1530

The lapped system is only suitable for Zed purlin sections


Hole centres to end bay purlins are “End Centres” as shown in the table below.

Hole centres to left hand end of penultimate bay purlins are “End Centres” , holes to right hand end of penultimate bay purlins are “Centres” as shown in the table below.

Hole centres to inner bay purlins are “Centres” as shown in the table below

Fire Restraint Wall System Lap System





purlin centre span hole centres

number of sleeves

BW ‘Z’ Section Standard Hole Details

Fire Restraint Wall System Heavy End Bay System

Purlins Heavy End Bay System

The heavy end bay system is a variation of the sleeved system which is suitable for buildings with fi ve or more bays.

Heavier gauge sections are fi tted to the end bays with corresponding heavy gauge sleeves to all penultimate rafter connections.

Inner bay purlins are of lighter gauge as are the inner bay sleeves which are fi tted at every connection.

The system can be used with double span inner bay purlins with fewer inner sleeves.


Range Depthmm

Top Flange

mm

Top Lipmm

Bottom Flange

mm

Bottom Lipmm

Hole Ctrs.

mm

Lengthmm

Z121 121 51 19 56 17 270 674

Z141 141 51 19 56 17 290 714

Z151 151 51 19 56 17 315 764

Z171 171 62 19 67 17 340 814

Z201 201 62 19 67 17 400 934

Z231 231 71 19 78 17 460 1054

Z261 261 74 19 82 17 510 1154

Z301 301 84 21 92 19 650 1434

Z341 341 94 23 102 21 800 1734

BW ‘Z’ Section Heavy End Bay Sleeves

Holes for purlin ties at mid-span or one third and two thirds span points.Holes for purlin ties are 18mm diameter.


Fire Restraint Wall System Roof Variations

Monopitch Roof

Tiled/Mansard Roof

For monopitch and other roofs where there is no restraint to the ridge purlin via apex ties an equivalent anchor must be used (ie threaded bar). This may take the form of a simple tie to a substantial ridge beam or alternatively by a combination of struts and diagonal bracing between the top two purlins.

Restraints should be used at mid-span for purlin spans greater than 3.5m and at third points of span for purlin spans greater than 7.5m.

For long roof slopes additional diagonal bracing may be required depending on sheeting.

These types of roof covering may cause bending about both axes of the roof purlins due to their weight. In order to provide adequate restraint roof ties should be used in lieu of anti sag ties. The ridge purlins should be tied using a rigid apex strut. Diagonal bracing wires are required between the top two purlins. Additional diagonal bracing will be required for every 6m length of roof slope.

The struts should be arranged such that the maximum unrestrained purlin length is restricted to 2m.

The timber rafters should be joined across the apex or be fi xed to a ridge board.



Fire Restraint Wall System Roof Variations contd

Non-restraining Cladding to Roof

Steep Roof

Many modern cladding systems do not provide adequate lateral restraint to the top fl ange of the purlins. In this situation it is necessary to replace the standard anti-sag ties with angle strut braces.

The struts should be arranged such that the maximum unrestrained purlin length is restricted to 2m.

For roof pitches greater than 25° diagonal bracing should always be provided.

These diagonal wires used in conjunction with angle strut sag bars allow for bending about both axes of the purlin.

Rigid apex ties are also required.

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Fire Restraint Wall System BW Cleats & Packer Plates

BW Cleats – Bolt-on-type

BW offer a range of standard cleats for attaching the purlin to the main steelwork

BW Cleats – Bolt-on-type with stiffener

Range Amm

Bmm

Cmm

Dmm

Tmm

Z121 110 25 35 50 6

Z141 130 25 55 50 6

Z151 140 25 65 50 6

Z171 160 25 85 50 6

Z201 190 25 115 50 6

All holes are 14mm diameter. Finish: galvanised or primer paint.

All dimensions in millimetres

Alternative bolt on type cleats can be supplied in either Flat Plate Form or Angle (excluding bottom fl ange holes).

Type Amm

Bmm

Cmm

Dmm

Tmm

Z231 220 25 145 50 6

Z261 250 25 175 50 6

Z301 290 25 215 50 8

Z341 330 25 255 50 8

All holes are 14mm diameter. Finish: galvanised or primer paint.


Alternative weld on cleats can be supplied without baseplate.

Packer PlatesFinish: galvanised or primer paint. All dimensions in millimetres

Rail Packers

RailType

Gauge Lines*

141 55

151 6565

171 85

201 115

231 145

261 175

301 215

341 255

Rail and Eaves Beam Packer 6mm thick, 36 diameter holes

*used to accept counter formed holes

30

30

30

30

60

PJR Packer 6mm thick, 36 diameter holes

*used when side rail supports are at 3rd points

PJR Packers

RailType

Gauge Lines*

141 55

151 65

171 85

201 115

231 145

261 175

301 215

341 255

30

30

30

701

00

30

30

30

30

60

DTW Packer6mm thick, 36 diameter hole

45

45

SRS Packer6mm thick, 36 diameter hole

65 65

130 130

30

30 303070

A

A

B

B

C

C

DD

T T

35

30 30

Eaves Beam Packers

Range Hole Centres*

ALL 70


NOTE: When ordering ancillary items, please ensure the correct production details are given for each item. It is our intent to avoid any unnecessary delay or error, which misleading information may cause.

n In some cases Anti-sag Ties are not required for roof pitches above 4 degrees. This can require that temporary props/bars are used until the sheeting is fi xed. The maximum spans without ties are:

Z141, Z151, Z171, Z201 .......................................... up to 6.1mZ231 ............................................................................ up to 7.1mZ261 ............................................................................. up to 7.6mZ301, Z341 ................................................................. up to 8.1m

Detail of BW Snaptite

Anti-sag Tie when fi xed

Anti-sag Tie for 18mm dia

purlin holes

BW ‘Snaptite’ Purlin Anti-sag Ties


purlin centre dimension only

Roof pitch 4º to 10ºFix ‘Snaptite’ Anti-sag Ties top hole to bottom hole to prevent purlin from rolling forwards

Roof pitch above 10ºFix ‘Snaptite’ Anti-sag Ties bottom hole to top hole to prevent purlin from rolling backwards

Fire Restraint Wall System Purlin Ancillary Items & Accessories

n BW ‘Snaptite’ Ties also prevent the purlin from ‘rotating’ during installation whilst assisting with restraining the bottom fl ange against wind uplift. The rigidity of the purlin is greatly enhanced once the roof sheeting is installed

n BW ‘Snaptite’ Anti-sag Ties should be fi tted when a purlin span is in excess of 4.6m so that the laterally unsupported length does not exceed 3.8m. For Z301 & Z341 Purlins use ‘sheeting rail’ type angle braces (as diagram) above.


purlin to apex dimension and roof pitch

Apex Ties are used to offer rigid restraint on pitched roofs. Used in conjunction with anti-sag ties to give perpendicular support to the purlins.

Apex Ties connect the two uppermost purlins across the ridge and are usually 12mm screwed rod.

Apex Ties are cranked at centre point. M12 threaded Rod BZP with M12 Nuts & M12 Flat Washers. 14mm diameter holes required in purlins to take these ties.

Apex Ties


Fire Restraint Wall System Purlin Ancillary Items & Accessories contd


purlin centre dimension top purlin type

bottom purlin type

Roof Ties45 x 45 Angle 2mm Galvanised with 2 No. End Brackets. 14mm dia holes required in purlins to take these ties.

Hole centres required to take these ties

Purlin Ref 141 151 171 201 231 261 301 341

Hole Centres 56 66 86 116 146 176 216 256


The above Roof Ties should be used for pitches below 4º and purlin spacing exceeding 2.5m. These can also be used instead of Eaves Ties.

Where the roof slope is longer than 18m we would recommend the use of the Roof Ties c/w the diagonal tie system within the roof slope.

Apex Roof Ties

Apex roof ties are used in conjunction with above roof ties.

Material: 45x45x2mm angle with 2 no. end brackets.

14mm dia holes required in purlins to take these ties.

Diagonal Ties


roof pitch apex dimensions purlin type


purlin centre span hole centres

For use with the above Roof Ties.

5mm diameter Galvanised Wire Rope with 2 No. 40 x 8mm Flat Bar End Brackets.

14mm dia holes required in purlins to take these wires.


Fire Restraint Wall System Purlin Ancillary Items & Accessories contd

To securely fi x the purlin to the main steelwork frame, stays are used, fi xed as shown by 2 pre-punched 14mm diameter holes.

Detail consists of: L x 45 x 45 x 2 Galv. Steel

Cleader Rail Available in 2 sizes. Both supplied from stock in 6 metre plain Unpunched lengths.

Small45x45mm Angle 2mm Galvanised for use where purlin centres are up to 1.8m

Large100x100mm Angle 2mm Galvanised for use where purlin centres are over 1.8m

BW Cleader rail is fi xed to the end of the purlins to carry vertical cladding. A 6mm gap is recommended for joints in the Cleader Rail. A Jointing Cleat to be used where required – not supplied by BW (Size suggested 70x60x3mm 50mm long) or simply overlap by approx 28mm.

*Non-standard cleader can be supplied on request (c/w holes if required) *


size of cleader required


hole centre dimension

Rafter/Stanchion Stays


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Fire Restraint Wall System Eaves Beam Ancillary Items & Accessories

Eaves Beam Cleat

Eaves Beam Cleat is used for the main stanchion connection to eaves beam.

Eaves Beam Cleat Stiffening Bracket

Eaves Beam Stiffening Brackets are bolted inside the Eaves Beam to offer a fi xing point for the Eaves Tie Fixing Bracket.

6mm mild steel plate, hot dip galvanised after manufacture, pre-punched with 4 No. 14mm diameter holes.


length eaves beam type


eaves beam type

Welding position of Eaves Beam Cleat to Stanchion

Fixing position of Eaves Beam Cleat to Stanchion


Fire Restraint Wall System Eaves Beam Ancillary Items & Accessories contd

BW Eaves Tie with End Brackets

BW Eaves tie with end brackets connects the Eaves Beam to the Bottom Purlin.

Comprising:

45x45x2mm galvanised angle with end brackets factory fi tted to preset angle.

Eaves Beam and Bottom Purlin punched at 14mm diameter to accept Eaves Ties.

6mm mild steel hot dip galvanised. Can be fi xed to Eaves Beam through web or fl ange dependant on angle of Eaves Tie.


eaves beam type purlin pitch

End Bracket Use the BW Building Wizard Software for accurate calculations

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Fire Restraint Wall System Side Rail Systems

Sleeved PAGE 28 Butt PAGE 29

BW Industries produce three types of Side Rail Systems, Sleeved, Butt and Horizontal– these are detailed over the next few pages

Horizontal Cladding PAGE 30


BW ‘Cee’ Section Sleeves

Side Rails Sleeved System

The sleeved side rail system is suitable for buildings with two or more bays and utilizes single span length side rails with sleeves. The sleeves are formed from plain channel section ie without lips.

The sleeves, which achieve a high degree of continuity over the side rail supports are fi tted at all penultimate column connections and staggered on internal bays, allow economy of side rail

section selection.

The system can be used for single span side rails and for double span side rails.

Sides rails can be supplied in Zeds also

Holes for side rail struts at mid-span or one third and two thirds span points.

BW ‘C’ Section Standard Hole Details

Sleeved System




side rail section size side rail overall length

Range Depthmm

Flangemm

Gaugemm

Holemm

Hole Ctrs.

mm

Lengthmm

C121 125 54 2.0 45 220 574

C141 145 54 2.0 45 240 614

C151 155 54 2.0 45 265 664

C171 176 66 2.5 46 290 714

C201 206 66 2.5 46 350 834

C231 236 75 2.5 46 410 954

C261 267 79 2.9 47 460 1054

C301 307 89 2.9 47 600 1334

C341 347 99 3.0 47 750 1634


Fire Restraint Wall System Butt System

Side Rails Butt System

The butted side rail system is suitable for all building types but is primarily used in single span applications.

It is the simplest side rail system and can be used in inset and oversail confi gurations.

Non-standard end confi gurations can be accommodated as required.


Length of side rail is span less 6mm.


Length of side rail is span less 6mm.

BW ‘C’ Section Standard Hole Details Non-continuous

BW ‘C’ Section Standard Hole Details Double Spanning Butt-jointed


making steelwork

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TECHNOLOGY







panel joint rail overall length cleat protrusion

Fire Restraint Wall System Horizontal Cladding System

Panel Joint Rail

Panel Joint rails are used to provide support for horizontally spanning cladding systems.

The rails have a large fi xing face to accommodate the ends of two panels at joint positions.

Rails are fi xed at the top and bottom via cleats which are bolted to the sheeting rails.

Panel Joint Rail Cee Section

Range Depthmm

Top Flange

mm

Top Lipmm

Bottom Flange

mm

Bottom Lipmm

Holesmm

PJR140 140 95 17 95 17 35

Range Depthmm

PJR140 1.6, 2.0Holes

Depth

Flange

Flange

Lip

Lip

Panel Joint Rail G Section

Range Depthmm

Top Flange

mm

Top Lipmm

Bottom Flange

mm

Bottom Lipmm

Holesmm

G140 140 105 15 45 15 35

Range Depthmm

G140 1.6, 2.0Holes

Depth

Flange

Flange

Lip

Lip

140

105

15 15

45


Standard Cleat Details

Panel joint rails are formed from 1.6mm thick material for rail centres up to 2m for rail centres over 2m use 2mm thick panel joint rails.

Detail for ‘C’ Section Sheeting Rails

Detail for ‘Z’ Section Sheeting Rails

Cleats can be supplied loose, or riveted to the panel joint rails (both Cee and G sections) using 6.5 hurlock rivets (see page 34 for fi xing details)

non-standard cleats can be manufactured to clients specifi cation

There is an allowance of 10mm clearance above and below panel joint rail between sheeting rails.

Fire Restraint Wall System Horizontal Cladding System contd

Panel joint rails can be used in lieu of side rail supports where appropriate.


number of cleats

Sheeting RailWidth, mm

Cleat Widthmm

Long CleatDepth, mm

Short CleatDepth, mm

BaseWidth, mm

141 100 165 110 89

151 110 165 110 89

171 130 175 110 101

201 150 175 110 101

231 190 185 110 110

261 220 190 110 114

301 260 200 110 124

341 295 210 110 134

All dimensions in millimetres. Manufactured from 3mm pre-galvanised material.


Fire Restraint Wall System Side Rail Ancillary & Accessories

BW ‘Restraint’ or ‘Supporting’ ancillaries are incorporated to reduce loading deformation of the side rails and assist in strengthening the overall structure when loads are supplied. All loading conditions are specifi cally calculated, only use BW Products illustrated to ensure correct stability under wind pressure and suction loads.

BW Side Rail Supports

Support Cleat Hole Centres Face to Face with Rails. It is recommended that the two lower rails are fi xed fi rst and aligned before the remaining rails are installed.

Clamp Plate fi tted under the bottom side rail only, to accept the side rail support and tie brackets, if necessary.

For Z141 & Z151 Rails For Z171,Z201, Z231, Z261, Z301, Z341 Rails

Special Fixing to Eaves Beam

BW side rail supports are manufactured from hot dipped galvanised steel (angle section 45x45x2mm)

3mm Galvanised

14mm Diameter Holes


rail centres top & bottom rail type


rail type

Hole centres in End Brackets

Rail Type Z141 Z151 Z171 Z201 Z231 Z261 Z301 Z341

Centres 56 66 86 116 146 176 216 256


BW Clamp Plate


Fire Restraint Wall System Side Rail Ancillary & Accessories contd


hole centres (DIM A) rail centres (DIM B)

Detail A

Side rail support struts fi tted at a 1/3 points (equidistant) with one diagonal tie for bay from 6.1m–10m max. (in accordance with BS5950).

Detail B

Side rail support struts fi tted at a midpoint with two diagonal ties, for bays from 3.2m to 6.1m maximum (In accordance with BS5950).

Detail C

Tie end bracket secured on the underside of the rail support cleat.

For use with side rail supports Ø 5mm Galvanised wire rope, adjustable within a range of 50mm at each end. Diagonal ties should be fi tted where required such that the angle is within the range of 25º-65º.

If the angle is less than 25º additional side rail supports are required.

HOLE CENTRES (DIM A)

RAFTER OR

STANCHION

ZED

CENTRES

(DIM B)

End Bracket

etail Bail B

Detaetail A

DDetail C


Diagonal Tie Bracket fi tted on top of Cleat to the hole nearest to the cladding and sandwiched between the Side Rail and the Side Rail Support.

Diagonal Ties



cleat protrusion end hole/slot position in cleat

Fire Restraint Wall System BW Cleats and Riveting

Sheeting Rails and Panel Joint Rails (both G & Cee Sections) can be supplied complete with riveted cleated ends.

C Section sheeting rails are supplied according to the table below Cleats are supplied to match.

Section A

141 40.5

151 45.5

171 55.5

201 70.5

231 85.5

261 100.5

301 120.5

341 140.5

All dimensions in millimetres.

We can also manufacture rails with auto-formed ends (manufactured to individual client specifi cation)

Cleats fi x to Cee Sections with 6.5 Hurlock Rivets

Varies

Varies

60

25

Varies

45

25

45

A

A

60

Sheeting

Rail

25

45

Sheeting

RailA

A

60



number of cleats

Fire Restraint Wall System Door and Window Trimmer Cleats

Sheeting RailWidth, mm

Cleat Widthmm

Long CleatDepth, mm

Short CleatDepth, mm

BaseWidth, mm

141 100 165 110 89

151 110 165 110 89

171 130 175 110 101

201 150 175 110 101

231 190 185 110 110

261 220 190 110 114

301 260 200 110 124

341 295 210 110 134

All dimensions in millimetres.

Manufactured from 3mm pre-galvanised material.

Cee Section members are ideal for framing doors and windows.

When the sections are arranged so that the web is orientated towards the opening, afl ush surface is able to accept fi xing of the door and window frames.

The fl ush surface is achieved by using either fl ush rivets or counterformed holes andpacker plates, in conjunction with standard trimmer cleats which are sized to suit thesheeting rail section being used.

Cleats are either long reach or short reach depending on cee section orientation.

Long reach cleats are required when the web is not orientated towards the opening and for jamb to rail connections.

Short reach cleats are required when the web is orientated towards the opening.

Door and Window Trimming

Door and Window Trimmer Cleats

Window Head

Window Jamb

Window Jamb

Window Sill

Door Head

Door Jamb

Door Jamb


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Fire Restraint Wall System Fire Restraint Wall System

In certain applications it is necessary to include fi re protection to some or all of the perimeter walls around the building. There are many fi re resistant wall cladding systems which are available today.

General Notes

The rail or cleat is slotted longitudinally (14mm x 50mm) on the standard gauge lines. 60mm gap required between ends of rails.

Fixing bolts to all joints must be fi tted with a combustible washer. This will collapse under fi re conditions, to allow movement for the rail to expand.

The period of resistance is solely dependent on the cladding material used, and the type of construction. A certifi cate should be obtained from the cladding supplier.

All primary structural steelwork, supporting the rails and cladding, should be fi re protected.

Standard Gauge Lines

Type Offset Gauge Lines Hole Centres Length

141 43 56 240 686

151 43 66 265 736

171 43 86 290 786

201 43 116 350 906

231 43 146 410 1026

261 43 176 460 1126

301 43 216 600 1406

341 43 256 750 1706


Fixing system 1 Fixing system 2

‘Butt/Non-Continuous Rail Arrangement’, normally fi xed outside the columns, but can also be fi tted between the columns. Allow 60mm gap at rail joint for expansion.

‘Sleeved Rail Arrangement’. Alternate sleeve butt/non-continuous connection to column, even number of bays. When odd bays occur, use the special sleeve. Allow 60mm gap at rail joints for expansion.

Firewall Sleeves

Inside ColumnsOutside Columns


Fire Restraint Wall System Material Weights

MaterialThickness

mm

Weightkg/m2

Steel Cladding

0.3 3.1

0.4 3.6

0.5 4.8

0.55 5.5

0.6 6.2

0.7 7.1

Aluminium Cladding

0.55 1.9

0.7 2.4

0.9 3.1

1.2 4.1

Steel Liner Panels

0.4 4.0

0.45 4.6

Fibre-Cement Single Skin

Standard three 14.7

Standard six 16.0

Profi le 6 17.0

Fibre-Cement Double Skin

Profi le 6(including insulation and battens)

30.0

Profi le 6(including insulation and battens)

32.0

Panel sheet(including insulation and battens)

27.1

Composite Cladding

28mm Foam 0.55 9.7

46mm Foam 0.55 10.3

28mm Foam 0.7 11.0

46mm Foam 0.7 11.7

Over Purlin Linings

Glass wool 60 0.7

Glass wool 80 0.9

Aeroliner 30 1.6

Aeroliner 50 2.2

Plasterboard 10 8.3

Plasterboard 12 11.2

Fibre board 12 4.4

Fibre insulating board 10 7.9

MaterialThickness

mm

Weightkg/m2

Woodwool Deck

Channel Reinforcement 50 30.0

Channel Reinforcement 75 45.0

Screed

Sand/Cement 25 60.0

Vermiculite 25 12.2

Asphalt

12 26.5

25 55.0

Bitumen Roofi ng Felts

Mineral Surfaced Bitumen 3.5

3 Layers including Chippings 30.0

Chippings

20.0

Timber Boarding

12 7.1

Chipboard

12 7.1

Plywood

13 9.0

20 14.0

Tile Weights

Plain Tiles (Concrete or Clay) 71.4

Interlocking 56.1

Natural Slate 30.6

Resin 17.3

Blockwork

Concrete , Solid (Stone Aggregates)

25 55.0

Concrete , Hollow 25 34.7

Aerated 25 15.0

Sedum/Green Roof

Decking 24.2

Waterproof Membrane 4.5

Insulation 35.0

Roof Barrier 4.5

Drainage Layer 40.0

Sedum/Green Mat 44.0

Lead

2.5 30.0

The weights shown are for general guidance only and BW Industries accept no responsibility for the accuracy of the information. Where exact weights are required reference should be made to the material manufacturer.


Fire Restraint Wall System Literature

Other publications

A range of other publications

for cold rolled sections

including safe load tables are

available on our website.

To download brochures from our website please visit

www.bw-industries.co.uk/downloads-brochures


Fire Restraint Wall System Software and Detail Sheets

Detail sheets

A full range of detail sheets are available on request or to download from our website at www.bw-industries.co.uk

making steelwork

INDUSTRIES


Building Wizard Software©BW Industries 2011 1 7

TECHNOLOGY

BW Building Wizard Software

The software package facilitates cost

effective design of purlins, side rails

and mezzanine fl oor beams all in

accordance with current standards.

An integral database allows for quick

and accurate assessment of loadings

including wind load and snow load for

all locations in the United Kingdom

and Ireland. This all in one application

enables production of detailed reports

for submission to any checking

authority.

See our website or contact our sales

team to request the latest version.

The Building Wizard Software is available to download from our website at

www.bw-industries.co.uk/downloads-software

We reserve the right to alter and amend specifi cations shown at any time

without prior notice. All dimensions are nominal. Care has been taken that

the contents of this publication are accurate. However BW Industries Ltd.

and its associated companies do not accept responsibility for errors or

information found to be misleading and accept no liabilities whatsoever

in respect thereof. The contents of this publication are meant as a general

introduction to our products and any purchaser, specifi er or user retains

the entire responsibility for satisfying themselves, independently of anything

herein, as to the suitability or fi tness for purpose of any BW Industries Ltd.

products, services or systems. Our normal terms & conditions of business

apply to any order (A copy will be supplied upon request.) © December 2015

BW INDUSTRIES

Carnaby Industrial Estate

Carnaby, Bridlington

East Yorks. YO15 3QY

TEL 01262 400088

FAX 01262 401110

EMAIL [email protected]

WEB www.bw-industries.co.uk

bw industries : steel roof purlins

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