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Telard slate is a graphite coloured roofing slate, produced in Papagaio, Brazil to the strictest extraction and production regulations and is of the highest quality. Produced in three sizes: 600 x 300mm, 500 x 250mm & 400 x 250mm. They are preholed to laps of 100mm. They have a nominal thickness of 5 - 7mm. The slates are split to produce a product consistent in thickness and texture. The slates are rectangle with chamfered edges and a moderately textured surface. Being a natural product you will get a variation in the graphite colour. This adds to the natural appearance of the roof. Slate & a halves are also available.
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Sizes and Thickness |
All slates can be manufactured to client specifications. |
Finishes |
| Chiseled edge |
Diamond Sawn Edges |
| Preholed |
Holes to clients specification |
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The slate has excellent climatic resistance properties. It is totally unaffected by atmospheric pollution, and is fire resistant. It offers the specifier or builder the ideal roofing product to suit all extremes. |
Sizes and Thickness |
Sizes from 2m - 20cm x 1m -40cm (7-1/4' x 4 1/2')
Thickness 2cm, 3cm, 4cm - To specification
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Finishes |
Beveled
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Honed |
| Brushed |
Padded |
| Bull nose |
Sandblasted
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| Calibrated / Gauged |
Sawn edge |
| Tumbled |
Cut to size |
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Sizes - Thickness |
| CENTIMETERS |
INCHES |
MILLIMETERS |
INCHES |
20X20 |
08X08 |
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15X30 |
06X12 |
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Ranging from: |
20X30 |
08X12 |
4 to 6 |
1/8 to 1/4 |
20X40 |
08X16 |
8 to 10 |
1/4 to 1/2 |
30X30 |
08X16 |
8 to 15 |
3/8 to 1/2 |
30X40 |
12X12 |
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1/2 to 5/8 |
40X40 |
16X16 |
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25X50 |
10X20 |
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50X50 |
20X20 |
Ranging from: |
Ranging from: |
30X60 |
12X24 |
6 to 8 |
1/4 to 3/8 |
40X60 |
12X24 |
8 to 10 |
3/8 to 1/2 |
60X60 |
24X24 |
10 to 15 |
1/2 to 5/8 |
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Performance Characteristics - Telard slate is regularly tested to BS680 part 2: 1971 requirements for roofing slates. Samples have passed the following parts. Wetting & drying tests (clause 6.2.2.) Acid immersion test (clause 6.2.3.
TELARD GRAHITE - Origin: Minas Gerais/Brazil
- Visible Volumetric Mass............................................. 2736 kg/m3
- Absortion Coefficient....................................................... 0,207 %
- Breaking load through indirect stress by bending.......... 76,1 MPa
- Breaking load through indirect stress by bending after cooling..... 30,9 MPa
- Wear by atriction: abrasion coefficient in tribometer.......... 6,50m
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