Framing A 2 12 Pitch Roof

Pitch is the amount of angle or slope the roof has.

Framing a 2 12 pitch roof.

To keep the porch roof framing as simple as possible we installed a structural ridge supported by posts at each end with the common rafters landing on top of the ridge. If this isn t practical then perform the same measurement on the underside of the roof. Asphalt or composite shingles need at least a 2 12 pitch steel roofing needs a 3 12 pitch or higher and rolled roofing needs a 2 12 pitch or more. So if the pitch of your roof is 7 12 place one stair gauge on the vertical part of the framing square the tongue at the 7 inches 18 cm mark and place one stair gauge on the horizontal part of the framing square the body at the 12 inches 30 cm mark.

This video covers one of the most exciting parts of roof framing installing rafters. Fix stair gauges on the framing square to mark the pitch. Roof pitch degree table. We included a roof pitch chart below the 7 12 example image and the calculator below that.

A framing square is traditionally used for laying out the roof and determining pitch. How to tie a additions roof to existing roof roof additions to existing roofs how to construct a roof from an exsisting shead how to change a roof line how to attach a deck roof to existing roof how to add a roof over porch attache porch roof on house attach shed roof to house adding a roof to screened in porch adding a roof to existing. The best pitch for shingles is between 4 12 and 12 12. The minimum roof pitch is 1 8 inch rise per foot of span.

Resilient asphalt shingles lie much flatter to the substrate than slate tile and concrete which keeps water from being easily blown under them. This is denoted two ways a 1 3 or 1 4 pitch in fractions and a 6 12 pitch in inches which means the roof rises 6 inches for each 12 inches of run. Image 1 12 to 12 12 roof pitch 7 12 pitch. Wondering how to build the structure of your roof.

But for a 2x12 rafter on a roof with a steeper 12 12 pitch the seat cut can be no longer than 4 inches before the d 4 limitation is exceeded. We will go over raft. Blind valleys simplify framing.