Roof 9 Over 12

They hava a pitch that can be as high as 21 12 175.

Roof 9 over 12.

9 12 roof pitch equivalents roof rises 9 in a length of 12. The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run. Conventional roofs have the pitch ranging from 4 12 to 9 12 33 3 to 75. 9 12 roof pitch to angle 36 87 degrees.

9 12 roof pitch angle 36 87 degrees. 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. If this isn t practical then perform the same measurement on the underside of the roof. 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.

High pitched roofs often require additional fasteners. 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. 7 12 roof pitch 30 angle 30 26 degrees details. For example if you measure 4 inches the pitch of your roof is 4 12.

This will give you the rise over run or pitch. 9 12 roof pitch angle 36 37 degrees. 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. But don t be fooled a steep roof is an excellent defense against weather.

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. The table below shows common roof pitches and the equivalent grade degrees and radians for each. What is a 9 12 roof pitch. Roof pitch degree table.

They are the easiest ones to construct and they are safe to walk on. However you can only use this pitch with built up roofing or specialized synthetic roofing. Image 1 12 to 12 12 roof pitch 7 12 pitch. 8 12 roof pitch 33 angle 33 69 degrees details 9 12 roof pitch 37 angle 36 37 degrees details.