The GHR Classic has the traditional look of natural slate, whilst being easy to lay due to the excellent selection process at the point of production. This is demonstrated by the regular number of slates per pallet.
The exceptional quality of the sourced rock enables the GHR Classic to be available in larger formats, up to 600x450mm and above.
The rigorous process to achieve approval for use in Snowdonia National Park looks at whether the slate is a suitable alternative to indigenous Welsh Slate. The GHR Classic has been deemed an alternative with equivalent colour, texture and weathering characteristics to Ffestiniog Blue Welsh Slate. This approval is a sure sign you can specify and use the GHR Classic with confidence in its performance.
Gordon H Richards are the sole UK supplier of GHR Classic.
This roofing slate complies with all relevant British and European standard BS EN 12326 and the test results show that this slate is A1, T1 and S1.
Source:
Spain
Approx. Thickness:
5mm
Colour:
Blue Black
Texture:
Smooth
Sizes Available:
400x250mm, 500 x 250mm, 500x300mm, 600x300mm
Grades:
First Mix, Best, Heavy
Pre-Holing 500 x 250mm:
90mm lap
Coverage at 90mm lap:
19.5 per M2
Slate and a half:
Available un-holed
Strength:
Good flexural strength both transversely and longitudinally. A recommended 5% wastage allowance should be applied.
Approx. Weight:
40kg / M2 based on 500 x 250mm 6mm laid to 90mm lap
Guarantee:
30 - 75 year site specific guarantee depending on grade
BS EN 12326-1:2014 Test Results:
Water Absorption A1, Thermal Cycle T1, Sulphur Dioxide Exposure S1