Minnesota Roof Sheathing

Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component.

Minnesota roof sheathing.

Fasteners must comply with astm f 1667. Click to add item 2 x 4 ac2 green pressure treated ccx plywood sheathing handi panel to the compare list. Roof sheathing may also be constructed of plywood. As an alternative adhered underlayment complying with astm d 1970 shall be permitted.

A water resistive barrier over the wall sheathing is required prior to application of the siding product. Roof decking vs sheathing. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. A minimum of 3 4 inch into the roof sheathing.

Rafters run from the peak of the roof. Never attach roof sheathing with staples. Sheathing should be a minimum of 19 32 inch thick. The following are approved methods for correcting spacing.

Where the roof sheathing is less than 3 4 inch thick the fasteners must penetrate through the sheathing. No edge of the sheathing can be left exposed to the weather. Sheathing roofing and siding. Made from thick strong materials roof sheathing is a very large board that is nailed to the rafters trusses or roofing joists.

Roof decking is also known by its alternate name sheathing. Oriented strand board osb is one of the most popular materials for roof sheathing. The cap nail shank shall be a minimum of 12 gauge 0 105 inches with a length to penetrate through the roof sheathing or a minimum of 3 4 inch 19 mm into the roof sheathing. Fasteners for asphalt shingles shall be galvanized stainless steel aluminum or copper roofing nails minimum 12 gage 0 105 inch 2 67 mm shank with a minimum 3 8 inch diameter 9 5 mm head of a length to penetrate through the roofing materials and a minimum of 3 4 inch 19 1 mm into the roof sheathing.

Re deck the roof with a minimum 11 32 thick panel sheathing product. Plywood is a bit more expensive than osb but is usually stronger. Install strips of at least 1 x 4 nominal boards in the spaces. Permits permit fees plan review and inspections required inspections.

Approved wall sheathing siding roof sheathing and roof covering must be installed according to the manufacturer s specifications. Roof decking makes up the surface that roofing materials adhere to. Osb is lightweight cheap and strong enough to resist bending or breaking should someone be walking on the roof. The minimum plywood for roofing.

Staples are not permitted for shingle application unless specifically noted in the manufacturer s installation instructions on the shingle package. Sheathing is installed perpendicular to roof trusses.