Framing A 2 12 Pitch Roof

Using a pitch measuring tool that i d made we also determined that the exact pitch of the shed roof was 3 1 2 in 12.

Framing a 2 12 pitch roof.

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. We will go over raft. 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. 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.

If the rafter is cut for full bearing on a 2x6 wall the resulting notch would be deeper than 2 13 16 inches. 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. Image 1 12 to 12 12 roof pitch 7 12 pitch.

If this isn t practical then perform the same measurement on the underside of the roof. Fix stair gauges on the framing square to mark the pitch. Blind valleys simplify framing. This video covers one of the most exciting parts of roof framing installing rafters.

Resilient asphalt shingles lie much flatter to the substrate than slate tile and concrete which keeps water from being easily blown under them. 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. 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. The minimum roof pitch is 1 8 inch rise per foot of span.

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. Wondering how to build the structure of your roof.