![]() They have the same seat and tail cut as a common. Jack rafters are nailed to the hip and slope down to the exterior walls. Also used to nail the top of the jack rafters. Hip rafters are nailed at a 45 degree angle to the ridge board down to the four outside corners of the building. ![]() To find the amount to add for the tail just add the run of the overhang minus the thickness of the sub fascia. I will often go ahead and make the plumb cuts on the hip rafter so its easier to measure and mark the seat cut and tail cut. Hip rafters should be measured along the top from the long point of the plumb cut. There are also 29 standard-sized shingles (measuring 12 inches by 36 inches) in each one of these. How many bundles of shingles do I need for a 12×12 roof?Īs a rule of thumb, there are 3 bundles to a square, assuming that you are using three-tab strip shingles. While you are nailing, have another crew member help hold the shingles down around the curve so they are flush against the surface. Start applying shingles to zone one, at the bottom of the cone, and then work your way up to zones two and three. To make installation easier, divide the roof into three distinct zones.
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