Minnesota 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.

Minnesota roof sheathing.

Align the long edge of the sheathing with the ends of the. Osb is lightweight cheap and strong enough to resist bending or breaking should someone be walking on the roof. Sheathing should be a minimum of 19 32 inch thick. Sheathing roofing and siding.

The minimum plywood for roofing. A minimum of 3 4 inch into the roof sheathing. Sheathing is installed perpendicular to roof trusses. Roof sheathing may also be constructed of plywood.

Where the roof sheathing is less than 3 4 inch 19 mm thick the. Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component. Fasteners for asphalt shingles shall be galvanized steel stainless steel aluminum or copper roofing nails minimum 12 gage 0 105 inch 3 mm shank with a minimum 3 8 inch diameter 10 mm head astm f 1667 of a length to penetrate through the roofing materials and a minimum of 3 4 inch 19 mm into the roof sheathing. Where the roof sheathing is less than 3 4 inch thick the fasteners must.

It is usually a thin black paper like material often referred to as roofing felt. Underlayment is a material placed on the roof sheathing before installing shingles. Click to add item 2 x 4 ac2 green pressure treated ccx plywood sheathing handi panel to the compare list. Compare click to add item 2 x 4 ac2 green pressure treated ccx plywood sheathing handi panel to the compare list.

Plywood is a bit more expensive than osb but is usually stronger. 8d ring shank nails should be used instead. Rafters run from the peak of the roof. The 2020 minnesota residential code adopts the 2018 international residential code irc.

Never attach roof sheathing with staples. Approved wall sheathing siding roof sheathing and roof covering must be installed according to the manufacturer s specifications. Conditions about your roof that may limit your product choices or affect the cost of your roofing job. All existing roofing layers shall be removed to the roof sheathing prior to installing new roof materials according to irc section 907.

Roofing materials must. Oriented strand board osb is one of the most popular materials for roof sheathing. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame.