3. Fasteners
-
Fixing roofing support timbers
Roofing timbers are attached to the structure, usually to the rafters, using :
or steel nails, smooth twisted or notched ;
corrosion-resistant steel (stainless steel or galvanized steel) with a minimum thickness or diameter of 1.83 mm and a minimum length of 63.5 mm per leg. Staple fastening is only permitted for support wood with a maximum thickness of 25 mm.
In the case of metal framing, the supporting timbers are fastened with 6 mm diameter self-tapping cemented steel or stainless steel screws.
Battens or battens are fastened with a point, staple or screw at their intersection with each rafter.
Battens or battens must rest on a minimum of three...
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Fasteners
Mortars
References
Works
Standardization
European standards
Tiles
- Clay roof tiles for discontinuous laying – Determination of flexural strength. French standard classification: P 31-307. - NF EN 538 - 12-1994
- Clay roof tiles for discontinuous laying – Determining physical characteristics – Part 1: impermeability test. French standard classification number: P 31-308-1. - NF EN 539-1 - 12-1994
- Clay roof tiles for discontinuous laying...
Technical organization websites
AFNOR (Association française de normalisation) http://www.afnor.fr
CSTB (Centre scientifique et technique du bâtiment) http://www.cstb.fr
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