12 12 Roof Pitch Factor

This 6 12 roof pitch factor can also be described in other measures.

12 12 roof pitch factor. The roof pitch is a measure of roof steepness. The pitch is defined as the slope of the roof and is commonly represented as the ratio of the rise over the run in the form x 12. Roof pitch 6 12 roof length including overhangs 40 gable wall length including overhangs 24 enter 6 into the calculator slope factor 1 1180 multiply the roof length by the gable wall length 40 24 960 multiply this amount by the slope factor 960 1 1180 1073 28 the area of this roof 1073 3 sq. For example if you measure 4 inches the pitch of your roof is 4 12.

You just have to go online and there you can search this chart you will surely. One medium to describe the roof pitch is in 12 runs. On blue prints architects engineers usually display the pitch of a roof in the format shown on the image where number 4 represents a rise and number 12 represents a length. Sometimes pitch is also expressed in fraction form using a fraction with a slash such as 6 12.

Roof pitch degree table. This will give you the rise over run or pitch. Slope factor chart pitch of roof slope factor 3 12 1 0308 1 4362 4 12 1 0541 1 4530 5 12 1 0833 1 4743 6 12 1 1180 1 5000 7 12 1 1577 1 5298 8 12. We included a roof pitch chart below the 7 12 example image and the calculator below that.

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. The angle for 6 12 is 26 57 and in grades it is described as 50. For roof slopes expressed as x in 12 rise in run the roof pitch multiplier is determined by finding the square root of rise run 1. If this isn t practical then perform the same measurement on the underside of the roof.

This numerical figure is significant as not everybody can understand the technical measurements. This means if a roof rises 4 in the length of 12 your roof pitch would be 4 12 or 18 43 degrees. A roof pitch multiplier also called a roof pitch factor is a number that is multiplied by the area covered by a sloped roof to produce the area of the actual surface of the roof. A roof with a 6 rise for every 12 run has a 6 per foot or 6 in 12 pitch.

For example if the pitch of the roof is 6 then it is written as 6 12. Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot. Pitch is thus the ratio of the rise in inches to a 12 inch run and is often expressed using a semicolon for example 6 12. Valley hip factor.