Roof 9 Over 12

However you can only use this pitch with built up roofing or specialized synthetic roofing.
Roof 9 over 12. As well you will need much more roofing material on a roof pitch of over 9 12 than you would on a 3 12 roof. They hava a pitch that can be as high as 21 12 175. Roofing material costs can add up in a hurry and the difference in surface area and roof framing between a shallow and steep roof is significant. Conventional roofs have the pitch ranging from 4 12 to 9 12 33 3 to 75.
They are the easiest ones to construct and they are safe to walk on. Image 1 12 to 12 12 roof pitch 7 12 pitch. 9 12 roof pitch angle to 36 87 degrees. If this isn t practical then perform the same measurement on the underside of the roof.
9 12 roof pitch equivalents roof rises 9 in a length of 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. Also referred to as 9 12 roof slope 9 on 12 9 to 12 and 9 12 roof angle 9 12 roof pitch to angle 36 87 degrees equivalents. High pitched roofs often require additional fasteners.
The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run. 9 12 roof pitch angle 36 87 degrees. Simply locate a roof rafter board place the end of the level against the bottom edge and measure from the 12 inch mark vertically to the bottom edge of the rafter. We included a roof pitch chart below the 7 12 example image and the calculator below that.
9 12 roof pitch to angle 36 87 degrees. 8 12 roof pitch 33 angle 33 69 degrees details 9 12 roof pitch 37 angle 36 37 degrees details. The table below shows common roof pitches and the equivalent grade degrees and radians for each. This will give you the rise over run or pitch.
But don t be fooled a steep roof is an excellent defense against weather. What is a 9 12 roof pitch. 7 12 roof pitch 30 angle 30 26 degrees details. 9 12 roof pitch angle 36 37 degrees.