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Indications
As well as protection against the rays of the sun and the other advantages of ballasted systems, the square blocks improve the appearance of exposed roofs, allow good treading for pedestrians and facilitate the inspection of the mantle.
They can also integrate the gravel ballast to create inspection or access paths.
Regular maintenance work must be contemplated, bearing in mind that any separating layer may facilitate the growth of plants.The characteristics of the complementary materials are highlighted only to indicate a good level quality standard
Specification wording
Preparing the foundation
Vapour barrier
Laying Stiferite panels (D specifications)
Waterproof mantle composed of two bituminous membranes with polyester fibre reinforcement, no less than 4 mm thick and weighing no more than 4 kg/m2 each.
The first membrane will be laid dry, sealing the overlaps, then the second membrane will be glued on, vulcanising it with a hot torch.
Possible non-woven separating layer, not illustrated.
Positioning of the supports and laying of the square blocks, 4 cm thick, weight 80 kg/m2
Products
Class B
Class S |
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