400mm x 200mm Del Carmen Standard Quality Natural Roofing Slate Blue/Black Standard Grade Natural Roofing Slate (30 Year Guarantee). SSQ Del Carmen is specially and exclusively quarried from the Del Carmen quarry in North West Spain to offer customers a top of the range slat... Read More
400mm x 200mm Del Carmen Standard Quality Natural Roofing Slate
Blue/Black Standard Grade Natural Roofing Slate (30 Year Guarantee).
SSQ Del Carmen is specially and exclusively quarried from the Del Carmen quarry in North West Spain to offer customers a top of the range slate usually sought by demanding markets such as Germany or France.
SSQ Del Carmen slate is a traditional riven slate with a distinctive texture.
The blue-black colour is totally natural and does not fade in sunlight.
Properties
SSQ Del Carmen is a high-density slate that does not crack, when fixed properly.
• It is almost totally inert and shows no reaction in polluted atmospheres.
• It is also non-porous and will not support the growth of mosses or lichens.
• It is also unaffected by insect attack.
Whereas most slates sourced from Spanish quarries have a transverse grain, Del Carmen slates are notable for the rare characteristics of a longitudinal grain.
Testing
The SSQ Del Carmen Ultra slate has been tested to international standards, including French Standard P32/302.
This French Standard is widely known as the highest classification worldwide and the testing is carried out at the quarry on a yearly basis by the Laboratoire Natonal d’ Essais.
As a testament to the consistent high quality of SSQ Del Carmen slate, English Heritage and Historic Scotland have previously accepted the slate for the refurbishment of listed buildings.
SSQ Del Carmen is also approved by Snowdonia National Park as an alternative to indigenous slate.
Extensive and regular testing coupled with centuries of experience prove that SSQ Del Carmen slates have their place among the very best roofing slates available.
Application
Fixing Del Carmen slates poses no problems for an experienced slater.
They can be fixed both by the traditional nail method and by the modern hook system.
On roofs, Del Carmen slates are suitable for pitches as low as 17°, subject to proper detailing and fixing.
When fixed correctly, Del Carmen slates offer a life expectancy generally in excess of that of the building.
Samples of SSQ Del Carmen have been tested in accordance with, and comply with, the relevant sections of:
• BS 680: Part 2: 1971 – Pass.
• French Standard P32/302 (1989) – Pass, Class A.
• American Standard ASTM – Pass, S1.
• German Standard DIN 58201 – 52206 – Pass.
Please note: Approximately 34 slates per m2.
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