Standard roof sheathing which consists of 4 by 8 sheets of plywood or oriented strand board or osb is 1 2 inch thick and attaches directly to the roof rafters or the roof trusses.
Roof thickness standard.
Standard test method for measurement of thickness of coatings over fabric reinforcement.
Standard specification for ketone ethylene ester based sheet roofing.
D6878 d6878m 19.
To support the added weight the architect or engineer may require the roofing contractor to install 5 8 inch roof sheathing.
Some steel shingles and tiles have a baked on granular coating that adds to their thickness and the mra notes that those products are usually made from 26 gauge steel.
D7635 d7635m 18.
For example standard 29 gauge steel roofing made in long panels is about 0 36 millimeters thick and the 26 gauge version is slightly thicker at 0 48 millimeters.
Standard specification for thermoplastic polyolefin based sheet roofing.
An exception to this standard however may occur if you intend to install slate concrete or tile shingles on your roof.
Metal roofing thickness recommendations that include paint exposed fastener corrugated steel roofing.
The min thickness of the roof slab should be 6 inches and maximum it can go up to 13 14 inches for span up to 7 m long.
014 018 exposed fastener corrugated aluminum roofing.
Each gauge represents a nominal decimal range.
Astm d4479 standard specification for asphalt roofing coatings asbestos free applies to solvent based roof coatings of brushing or spraying consistency commonly used in constructing cold applied built up roof systems.