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PPES02 SPANISH ROOF SLATES 6.5 - 7.5mm 400 x 200mm DOUBLE HOLED
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ELAPI HEAVY SPANISH ROOF SLATES 7-9MM 400X200MM DOUBLE HOLED 7-8mm;
It is ideally suited for the Scottish market due to its close similarity to the traditional highland slate from Ballachulish that is no longer produced. Both are blue black in colour and of similar thickness, and pyrite crystals are usually present in both.
NATURAL QUALITY
The inclement weather in these markets means that thicker slate is needed to protect buildings from dampness through capillarity and also from the high winds that prevail in some parts of Scotland. Capillarity refers to how easily a liquid can rise through a pore. It is a physical phenomenon and therefore it is not limited to slate and affects all overlapped laminated materials. Heavy 3 at a thickness of 7-8 mm is ideally suited to combat dampness which has which has resulted in it being widely used on conservation projects.
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