Framing A 2 12 Pitch Roof

Resilient asphalt shingles lie much flatter to the substrate than slate tile and concrete which keeps water from being easily blown under them.

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. Blind valleys simplify framing. Wondering how to build the structure of your roof. Roof pitch degree table.

Image 1 12 to 12 12 roof pitch 7 12 pitch. We included a roof pitch chart below the 7 12 example image and the calculator below that. A pitch of 2 12 is the minimum pitch for shingles made of asphalt so your roof just barely makes the cut off for one of the most popular roofing material options. 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.

This video covers one of the most exciting parts of roof framing installing rafters. If the rafter is cut for full bearing on a 2x6 wall the resulting notch would be deeper than 2 13 16 inches. 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. 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.

The minimum roof pitch is 1 8 inch rise per foot of span. A framing square is traditionally used for laying out the roof and determining pitch. 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. Pitch is the amount of angle or slope the roof has.

Fix stair gauges on the framing square to mark the pitch. If this isn t practical then perform the same measurement on the underside of the roof. The best pitch for shingles is between 4 12 and 12 12.