2 12 Pitch Shed Roof

Acceptable flat roof coverings include tin roof sheets.

2 12 pitch shed roof. Pitch and angle finder device to determine the roof slope. A roof with a slope of 10 degrees 2 12 or less is generally considered a flat roof. Constructing a new shed roof at the desired pitch is as easy as knowing how to use a speed square. If you have to go with a roof pitch less than 3 12 then it would either have to be a metal roof or a roof covered with a rubber membrane to prevent water penetration.

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. Blind valleys simplify framing 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. In roofing it is expressed in inches of vertical rise over inches of horizontal run. Therefore if your roof rises 4 inches over the course of 12 inches of horizontal run then your roof pitch is 4 12.

Don t forget to cut the ends of each board to the appropriate angle to allow them to fit together at the peak. This step by step woodworking project is about 8 12 gable shed roof plans plans this is the part 2 of the 8 12 garden shed project where i show you how to build the gable roof. 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. So since we are using a roof pitch of 4 12 we ll use the number 4 in that row to help us make our miter cuts.

Use 2 4 lumber for the rafters. To start i already know that my rafter length is going to be 5 3. There are advantages and disadvantages to having a steep pitch versus a shallow or low pitch the most obvious of which is the roof s ability to shed or withstand heavy snow rain or wind. If you re planning on building a gable roof with a pitch of 4 12 for a shed that s 200 inches 510 cm wide your rafter boards would need to be 105 3 inches 267 cm long on each side.

I ll use my speed square to measure my first cut on one end of my 2 4 rafter. For the shed roof pictured above the back has a 5 12 pitch. Resilient asphalt shingles lie much flatter to the substrate than slate tile and concrete which keeps water from being easily blown under them.