slates & shingles roofing service 9211489

8/4/2019 Slates & Shingles Roofing Service 9211489

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High performance, quality roofing .... tested and proven by time

Natural Slate

Fibre-cement Shingles

Asphalt Shingles

1090 South Road EDWARDSTOWN SA 5039Ph: 08 8177 1815 Fax: 08 8177 0336

Email: [email protected]

Web: slatesandshinglesroofing.com

. . . specialist roofing products

CLIENT SERVICES

Re roofingRoofingAll roofingBuildingPergolasRoof restorationsRoof conversionsGuttersStructural and

timber repairs

General Builders Licence

No. G10965

(Unrestricted)

We have put this

website together

for you so that

youll have all the

information that

you need when

selecting what is

the finest roofing

material available

for pitched roofs.

If there is some

extra information

needed contact us

- where here tohelp you.

Do you have a

suggestion as to

how we can

improve this

website for you?

Well be to hear

from you.

Home Natural Slate Fibre Cement Shingles Asphalt Shingles Picture Gallery Contact Us


Welcome to Slates and Shingles Roofing Service

Slates and Shingles Roofing imports,

markets and supplies a range of high

quality roofing materials to the building

industry.

Slates and Shingles has been roofing

since August 1974 and is committed to

providing a service whereby our clients

are provided with a finished product that

will perform to time proven expectations.

This is particularly important, as some of

our products have a life expectancy of

well in excess of 100 years. To realise

this, our fixers are trained craftsmen

that are practised and proven in this

type of work.

Slating is a craft, and as such is only

learnt truly over a period of years.

Most of our natural slates are drawn

from England, Spain and China. Some of

these quarries are over 300 years old.

We source the fibre-cement slates from

Europe (Eternit) and the asphalt shingles

from America. Asphalt shingles are

among the most popular roofing

materials in the world.

With product sources like this, and with

Slates and Shingles experience, you can

be assured that your building, your

home, will get the care and attention

that it deserves.

On the following pages you will see

photos of jobs that we have done over

the years around the Adelaide area - and

your home can look just as distinguished

as these when you have a slate roof.

. . . . importers and craftsmen of specialist roofing products


2/9


Natural Slate


Asphalt Shingles





CLIENT SERVICES


timber repairs


No. G10965

(Unrestricted)

NATURAL SLATE

Slate roofs have no

equal

Slate, the natural

choice

Which slate should I

use?

The craft of roof

slating

How to Specify



Slate roofs have no equal ... in appearance or performance.

The charm of hand craftsmanship.

There are many imitators, but none come near to

natural slate roofing for durability, quality or

appearance.

Slate has been used on roofs for centuries - on the

humblest cottage to the most significant palace.

Architects, builders and owners today are discovering

the advantages of having a slate roof, and there is an

ever growing interest in this type of roof covering.

Whilst it is important to use an everlasting material,

it is equally important that the product is installed

correctly, otherwise it will never realise its full

potential.

A roofs influence on building design.

Slate is the only natural hand made roofing material.

Indeed, it is a natural product, hand fashioned. Two

slates can no more be exactly alike in texture than

can two leaves from the same tree.

Therein lies its charm. In this day of machine

products, a slate roof with its air of hand

craftsmanship has become the distinctive, evendistinguished feature of the building.

Now, lets have a look at slate roofing a bit

closer .......

The design of a roof on a building is critical to its final

appearance.

Many a building has fine doorways, windows and

walling which gives it richness and interest, but often a

well designed, carefully made roof does far more to

stamp a building with a quality which is at once more

pleasing and satisfying, although less definable.

Indeed, looking at a nicely proportioned building, one

realises that a well shaped and pitched roof is what

gives it its character. It is also a fact that, irrespectiveof the material used, a roof will always last longer the

steeper the pitch.


3/9


Natural Slate


Asphalt Shingles





CLIENT SERVICES


timber repairs


No. G10965

(Unrestricted)

NATURAL SLATE

Slate roofs have no

equal

Slate, the natural

choice


use?

The craft of roof

slating

How to Specify



Slate, the natural choice for a roof covering.

Why you should choose slate

roofing .... the practical reasons.

Natural slate roofing will often last for the expected

life of the building. Sure, the initial cost is more,

but then you often do not have to replace it 2 or 3

times during the life of the building. Even in the

harsh marine environment slate will last over 100

years. The first cost is the last cost . . . . can

the roofing material you use compare?

Natural slate is colour stable, and each batch of

slate has its own individual character and texture

permanently formed by nature.

Natural slate roofing is relatively light compared to

tiles giving savings in roof structure costs. Slate,

at 30kg/m2, is only 70% of the weight of

roofing tiles.

Natural slate is non-porous (max 0.3%) and

allows a faster flow-off of water from a roof than

any other comparable form of material.

Natural roofing slate is not affected by extremes of

temperature and is therefore suitable for any

climate.

Natural slate roofing has a very high resistance to

both acid and alkali chemicals, is completely fire

resistant, and is not affected by fungus, moss,

insects or birds.

Natural slate roofing can be laid to roof or vertical

slopes and is sufficiently versatile to incorporate

sharp designs, angles and pitches and withstand

exposure to the elements.

Natural slate roofing has a proven method of

application and fixing which has withstood the

test of time. In fact, wind tunnel tests have shownthat slates fixed with nails or hooks will withstand

winds up to 250 km / hr!


4/9


Natural Slate


Asphalt Shingles





CLIENT SERVICES


timber repairs


No. G10965

(Unrestricted)

NATURAL SLATE

Slate roofs have no

equal

Slate, the natural

choice


use?

The craft of roof

slating

How to Specify



Slate, the natural choice for a roof covering.

Which roofing slate

should I use?

There are many slates on the market. Slates used in

roofing have to comply with standards for porosity,

pyrite and mineral content.

All natural roofing slates have chipped or riven edge -

not a sawn edge. This allows for easier drainage as

the water channel formed between 2 slates side by

side, is less likely to collect debris and be self flushing.

Hold the slate vertically in one corner and tap it with a

hammer. A good roof slate should give a clear ring.

The wider the spall, or the chipped edge, the harder

the slate, as the slate has been more compressed by

nature when it was formed. A slate with steep edges

indicates a soft slate.

The hardness of a slate is also influenced by the

amount of iron pyrites in the stone. The more iron

pyrites the harder the stone. It is therefore a juggle

by the quarry to select the right stone, as too much

iron pyrites will cause rust stains to appear.Generally, most roofing slate is from Spain or the U.K.

Some of the other sources are the US, Canada and

South Africa and China. Spanish slate used in

Australia is generally from either the Cupire quarry or

the Villar Del Rey quarry.

The Cupire slate (4-5mm thick) has a 50 year

guarantee from the quarry. The Villar Del Rey slate (5

-6mm thick), guaranteed for 75 years, is from the

oldest quarry in Spain, over 300 years old. These

slate quarries have the ISO 9002 Quality Certification.

Also available is the Welsh Penrhyn, a purple colour. It

is one of the worlds finest slates, and traditionally one

of the most well known. However they are also

approximately 200% more expensive than the Villar

Del Rey slate.


5/9


Natural Slate


Asphalt Shingles





CLIENT SERVICES


timber repairs


No. G10965

(Unrestricted)

NATURAL SLATE

Slate roofs have no

equal

Slate, the natural

choice


use?

The craft of roof

slating

How to Specify



The craftsmanship of roof slating.

THE FIXING OF SLATES

Slate is the natural choice for a pitched roof.

However, whilst it is important to have a good

stone, it is equally important that the slate be

installed correctly. Slating is a craft, and as such

is to be learned truly only over a period of years.

Only a craftsman, practiced and proven in this

type of work should be used. Although the present

day practices of slating are in many ways similar

to the old, new materials, different cost values

and a quicker rate of working have brought many

changes.The following are some of the specifications that

must be carefully followed to ensure the slates will

be able to perform to their full potential.

ROOF PITCH

Generally we do not recommend a slate roof to be

laid below 18o (4:12) pitch. As it is such a good

looking roof, why not let people see it; keep the

pitch up.

The roof pitch also influences the size of the slate

selected for the job. The flatter the roof the

broader the slate that should be used. This isbecause there is more capillary action, causing a

larger angle of creep, with flatter roofs.

SIZE OF SLATES

The most common size natural slate used is the

500x250mm (20"x10") COUNTESS slate. We do

import other sizes as required, as sometimes roofs

may need these sizes for detail work.

As can be expected with a craft that is centuries

old, picturesque names for the various sizes have

been adopted.

HEADLAP

This is the most important consideration with any

form of roofing. As with interlocking tiles, slatesmust NEVER be fixed on a roof with less than

75mm headlap.

Any slate roof, or proprietary fixing system for

slate with less that 75mm headlap should be

immediately rejected. For more exposed positions

or with flatter pitches this headlap may have to be

increased.

Now this is how to work out the gauge of a slate:

Slate length - Headlap divided by 2 e.g. (500 -

75) divide by 2 = 212mm gauge.

Therefore a Countess Slate is laid at: 212mmgauge.

Next pagePage 1.


6/9


Natural Slate


Asphalt Shingles





CLIENT SERVICES


timber repairs


No. G10965

(Unrestricted)

NATURAL SLATE

Slate roofs have no

equal

Slate, the natural

choice


use?

The craft of roof

slating

How to Specify



The craftsmanship of roof slating ... contd

BATTENS

Always use a softwood batten due to slate nailing

considerations. For the following rafter centres use

the sizes: 600mm - 45x35mm, and 1200mm -

70x35mm.

NAILS

A nail with a clout like head must be used, in

either galv or copper. They should be 20mm

longer than two thicknesses of slate. Copper clout

nails have a smooth shank, and I have seen them

work their way out of the batten over a period of

time, so ensure they have a ring-barbed shank.

Nail holes in the slates must always be punched,

not drilled, as the punching from the back gives a

countersink on the face of the slate for the nail

head. Nail holes to be at 25mm in from the edge

of the slate.

It is important to ensure that the nail is made of a

material that will last the same time as the slate.

The slates will start slipping out before their life is

up. This condition is called Nail Sickness.

HOOKS

As an alternative, a stainless steel hook system

may be used. This will save approximately 30%

off the fixing costs. This system has been used for

decades in Europe with great success. Some

installers say that hooks are better as the slate is

not weakened in the holing process of the 2 nail

method.

Using stainless steel hooks also gets around the

problem of slates that have not been nailed tight

enough (so the slate above ends up with a hole

punched through its face), or with the over nailing.

of the slates.

SLATERS TOOLS

There are five tools that are specially needed for

the slater. Obviously, in centuries past they were

made by the local blacksmith. Their shape and

style is still the same as back then.

HOLING AND GRADING

Before any slates can be laid they must be holed

and graded. The slates are punched, not drilled, at

a distance equal to the holing gauge up from the

tail, and between 20-25mm in from the edge. They

are punched from the back or bed of the slate,

which produces a natural countersink for the nail

head.

The tail is the thick end of the slate. Yes, there is a

thick and a thin end, and an experienced slater can

immediately pick the difference.

As the slater puts down the slate after holing, he

puts them down in one of 3 or 4 piles according to

their overall thickness.

When a roof is slated, the thick slates are fixed at

the eaves, where most of the water is, grading up

to thin slates at the ridge line.

Next page Previous pagePage 2.


7/9


Natural Slate


Asphalt Shingles





CLIENT SERVICES


timber repairs


No. G10965

(Unrestricted)

NATURAL SLATE

Slate roofs have no

equal

Slate, the natural

choice


use?

The craft of roof

slating

How to Specify




TRAMLINES OR PERP LINES

To assist in laying slates neatly, a series of chalk

lines should be struck. These lines run up the roof

(parallel to the rafters).

They can be struck every 1 slates wide apart, or

as some do, a pair of lines, a slate apart, every

2 or 3 slates.

A slate roof not struck out is easily detected - look

up the roof and see if all the perpendicular joints

line up.

LAYING SLATES

In the laying of any roofing material, workmanship

is as essential as the proper selection of the

material. The more enduring the material, the

more important this factor becomes. Slate, the

most lasting material known, should be laid by

roofers of experience and training - craftsmen.

It is a mistake to assume that those without such

experience are qualified to properly lay slate.

For example one of the most critical areas is

nailing. The following diagrams will show why.

The first diagram also shows why slates should

never be drilled - it is not possible to achieve a flat

bed for the next slate as there is not a countersink.

LAYING SLATES ... contd

Slates should be laid with a broken bond and

secured with nails or hooks to softwood battens.

Before fixing, perpendicular lines should be

marked giving the correct bond and spacings.

Approximately 4mm should be left between the

vertical joints of the slate, so that there is a free

thoroughfare for water running down the roof.

Slating should be started at the eaves and fixed

diagonally across and up the roof slope, thus

ensuring each slate is fixed with 2 nails or a hook.

EAVES COURSE

There must be a double course of slate at the

eaves, formed by laying a course of short under-

eaves slates, over which the first course of full

slates are laid. The overhang into the gutter or

over the fascia should be 50mm.


Correct Holing / Nailing

Notice how the nail head

neatly fits into the counter-sink produced when holing

from the back of the slate.

Over Nailed Under Nailed


8/9


Natural Slate


Asphalt Shingles





CLIENT SERVICES


timber repairs


No. G10965

(Unrestricted)

NATURAL SLATE

Slate roofs have no

equal

Slate, the natural

choice


use?

The craft of roof

slating

How to Specify




BARGES OR VERGES

The overhang of slate at the verge should be 40-50mm and either half slates or wide slates beused in alternative courses to maintain the bond.

TOP COURSE

Top course and under top course slates must be ofsuch a length as to ensure that a correct lap is

maintained.

VALLEYS

VALLEYS contd

SPECIAL VALLEYS



9/9


Natural Slate


Asphalt Shingles





CLIENT SERVICES


timber repairs


No. G10965

(Unrestricted)

NATURAL SLATE

Slate roofs have no

equal

Slate, the natural

choice


use?

The craft of roof

slating

How to Specify




RIDGES and HIPS

There are 4 principle methods used for hip and

ridge cappings as follows:

Slate with metal under-flashing

Concrete or terracotta or a purpose made

slate capping.

Metal roll top in copper, lead, colorbond orzincalume.

Mitred hip.

MITRED HIPS

In exposed conditions and for roof pitches below30o mitred hips are not recommended. Extra wideslates are required for cutting so that sufficient

width is provided at the head of the slates. Only askilled craftsman should attempt a mitred hip.

QUALITY CONTROLSlates and Shingles Roofing Service is committed

to providing a service whereby our clients are

provided with a finished product that will perform

to time proven expectations.

This is particularly important, as some of our

products have an expected life expectancy of well

in excess of 100 years, so therefore, to realise

this, Slates and Shingles work to an ITP

Checklist (Inspection Test Plan).

These Checklists are based on centuries old

methods of installation, which have withstood the

test of time, and with modern equipment and

facilities, will provide our clients with the best

possible value for their purchase.

COMPANY SAFETY POLICY

In conjunction with our Quality Control system, we

have a Safety Policy whereby all our employeeswork to Approved OH & S Standards.

This includes the provision by Slates and Shingles

of all protective/safety clothing and equipment as

required. This is important to ensure that our

employees are easily able to complete works to

our required QUALITY STANDARDS.

WORK METHOD

To the aim of maintaining both our QUALITY

POLICY and our SAFETY POLICY, Slates and

Shingles have an on-going commitment to identify

any risk to our employees and the general public

to establish safe work practices for the

performance of work on site.


slates & shingles roofing service 9211489

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