Framing A 2 12 Pitch Roof

We included a roof pitch chart below the 7 12 example image and the calculator below that.

Framing a 2 12 pitch roof.

Slope the slope of a roof is represented as x 12 where x is the number of inches in rise for every 12 inches of run this is very useful information for many purposes especially for roof framing the slope sometimes called pitch is calibrated on speed squares. 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. If the rafter is cut for full bearing on a 2x6 wall the resulting notch would be deeper than 2 13 16 inches. The best pitch for shingles is between 4 12 and 12 12.

Angle the angle of a roof is the same as the roof s slope except instead of being. Wondering how to build the structure of your 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. Roof pitch calculator results explained.

Pitch is the amount of angle or slope the roof has. 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. Image 1 12 to 12 12 roof pitch 7 12 pitch. 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.

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. Fix stair gauges on the framing square to mark the pitch. A framing square is traditionally used for laying out the roof and determining pitch. If this isn t practical then perform the same measurement on the underside of the roof.

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. Roof pitch degree table. We will go over raft. Blind valleys simplify framing.

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.