Irc 2012 Roof Pitch

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.

Irc 2012 roof pitch.

This means for every 12 horizontal units the roof must rise a minimum of two and one half vertical units. Rafter span table and 2012 irc requirements. Where the roof sheathing is less than 3 4 inch 19 1 mm thick the nails. It brings together all building plumbing mechanical fuel gas energy and electrical provisions for one and two family residences.

3 the existing roof has two or more applications of any type of roof covering. The international code council icc is a non profit organization dedicated to developing model codes and standards used in the design build and compliance process. Clay and concrete roof tiles can only be installed on roof slopes of 2 1 2 12 or greater. Truss design drawings prepared in conformance to section r802 10 1 shall be provided to.

The existing roof covering is wood shake slate clay cement or asbestos cement tile. Where the roof sheathing is less than 3 4 inch 19 mm thick the. All other data can be found in the. May 2012 amendments legislative format floors 2012 international residential code 121 table r502 5 1 girder spansa b aand header spans b for exterior bearing walls maximum spans for douglas fir larch hem fir southern pine and spruce pine firb and required number of jack studs girders and.

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. January 2012 code for residential buildings that creates minimum regulations for one and two family dwellings of three stories or less. The existing roof or roof covering is water soaked or has deteriorated to the point that the existing roof or roof covering is not adequate as a base for additional roofing. The international code council icc is a non profit organization dedicated to developing model codes and standards used in the design build and compliance process.

These rafter spans are for 2 lumber a ground snow load of 30 psf the ceiling not attached to rafters and a dead load of 10 psf. R802 10 1 truss design drawings. The international codes i codes are the widely accepted comprehensive set of model codes used in the us and abroad to help ensure the engineering of safe sustainable affordable and resilient structures. Roof geometry wood truss requirements 2012 irc section r802 10 addresses the requirements for wood metal plate connected wood trusses.

Minimum roof slope roof pitch r905 3 2.