Minnesota Roof Sheathing

Roofing materials must.

Minnesota roof sheathing.

Sheathing should be a minimum of 19 32 inch thick. Underlayment is a material placed on the roof sheathing before installing shingles. 8d ring shank nails should be used instead. All existing roofing layers shall be removed to the roof sheathing prior to installing new roof materials according to irc section 907.

Plywood is a bit more expensive than osb but is usually stronger. Conditions about your roof that may limit your product choices or affect the cost of your roofing job. Minnesota residential code has different requirements for attached and detached garages. Never attach roof sheathing with staples.

Rafters run from the peak of the roof. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Sheathing is installed perpendicular to roof trusses. The minimum plywood for roofing.

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. Approved wall sheathing siding roof sheathing and roof covering must be installed according to the manufacturer s specifications. Osb is lightweight cheap and strong enough to resist bending or breaking should someone be walking on the roof. It is usually a thin black paper like material often referred to as roofing felt.

Click to add item 2 x 4 ac2 green pressure treated ccx plywood sheathing handi panel to the compare list. Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component. Oriented strand board osb is one of the most popular materials for roof sheathing. The 2020 minnesota residential code adopts the 2018 international residential code irc.

Sheathing roofing and siding. Garages must also meet the land use and setback. Align the long edge of the sheathing with the ends of the. Where the roof sheathing is less than 3 4 inch 19 mm thick the.

Roof sheathing may also be constructed of plywood. Where the roof sheathing is less than 3 4 inch thick the fasteners must. A minimum of 3 4 inch into the roof sheathing.