Roof 3 Over 12

Classic rib steel roof panel in charcoal model 2313417 39 84 39 84.

Roof 3 over 12.

Image 1 12 to 12 12 roof pitch 7 12 pitch. Set your store to see local availability add to cart. If a roof rises 3 in a length of 12 this is 3 12 roof pitch. We included a roof pitch chart below the 7 12 example image and the calculator below that.

Most roof s have a pitch in the 4 12 to 9 12 range. Some kind of protective waterproof membrane should be put down underneath the shingles as well as using shingles that are recommended by the manufacturer for that slope. The plans are already purchased so if we make it steeper it would have to be something that the builder does by adjusting. 3 12 roof pitch angle 14 04 degrees.

Roof pitch degree table. It looks flat to me but i m sure that without good information why it should be steeper my husband won t want to change the plan. Exposed fastener galvanized steel roof panel in evergreen model 0410117176 33 07 33 07. For example a 3 pitch or 3 in 12 pitch or 3 12 pitch all mean that the roof rises 3 inches for every 12 inches of it s horizontal run.

The table below shows common roof pitches and the equivalent grade degrees and radians for each. You can do this with a 12 inch level and a tape measure either working on top of the roof or in the attic. The pitch on our roof over the porch is 3 12. A pitch over 9 12 is considered a steep slope roof between 2 12 and 4 12 is considered a low slope roof and less than 2 12 is considered a flat roof.

In practice it s unusual to measure the entire rise and run of a roof. It s much easier to measure the change in roof elevation over a 12 inch horizontal distance. See what i. A 3 12 pitch rises 3 over a distance of 12 so at the highest point of a 26 truss center or 13 it would be 3 1.

Fabral shelterguard 12 ft. If this isn t practical then perform the same measurement on the underside of the roof. You can shingle a 3 12 pitch roof but special application measures should be taken to prevent leakages at some point down the line.