Roof Sheathing Thickness For Metal Roof

Sheathing should be a minimum of 19 32 inch thick.

Roof sheathing thickness for metal roof.

Never attach roof sheathing with staples. This way no worrying about grabbing scraps to fill in small spots and not having the correct thickness. The typical thickness range for sheathing is 3 8 to 3 4 inch. Because 22 24 or 26 gauge sheeting is thicker and will therefore remain more structurally sound over a longer span than a 29 gauge the building needs fewer supports which saves your customers money.

8d ring shank nails should be used instead. Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7. 1 inch 25 4 mm. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame.

Hi todd i have a pole barn design structure that had been turned into a livable dwelling with cathedral ceilings using rigid foam between the metal roof and the ceiling sheetrock i am redoing this and putting a decking down with tyvek protec 200 and then reattaching the metal roof and adding circular pest resistant soffit vents at the end rafters of the roof between purlins for ventilation. Unlike with plywood siding the plywood sheet to be used for sheathing should be at least 3 8 inch thick. Standing seam and flat shingle roofs are in direct contact with the roof sheathing. Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively.

The thickness of plywood used for roof decking depends on the roof slope the spacing of rafters and the weight of other material to be put over the decking as well as the design load the. Stamped shingle look metal roofing is more likely to dent because there s a small air space between the metal panel and the roof sheathing. Post frames generally lack structural sheathing so the roof and wall panels must span between the supporting trusses or purlins.