Natural slate is a relatively brittle product and should be handled and treated with care. Before the slates are fitted they should be graded into thick, medium and thins. The grade of slate being used should determine how much grading would be needed. Whilst grading any slate found to be twisted, bowed etc. should be set to one side and used for eave or top slates, cut for half slates, valleys or chimneys. The sorting and grading process are best carried out whilst holding the slate. Roofing slate is always holed from back to ensure a countersunk area on the front so that any water present near the hole does not have a direct route to the underside of the slate. It also provides a neat spalled area for the nail fixings to site in. Pre-holing is available if required at an extra cost.

Slates in yard


Our slates should be fixed in accordance with the following standards: BS5534 Part 1 1997 (Code of practice for slating and tiling): Design part 2 1986 Design charts for fixing roof slating and tiling against wind uplift: BS8000 part 6 1990 workmanship on building sites code of practice for slating and tiling: BS 1202 Nails (Part 2 copper, Part 3 Aluminum).



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