Roof Slope 1 4 Per Foot

Of your low slope roofing system.

Roof slope 1 4 per foot.

3 12 1 2 12 and 1 4 12. Flat roofs are not perfectly flat in reality they need a small slope for water runoff. The recommended slope is 1 4 inch per foot but it can be anywhere from 1 8 inch to 3 8 inch per foot depending on other factors. The minimum pitch for a roof is 1 4 12 which translates to 1 4 inch rise to 12 inches of run.

We can divide roofs into the following categories. Bd feet per panel 1 8 per ft 0 5 1 1 5 2 2 5 3 4 4 5 aa a b c aa 2 a 2 b 2 c 2 2 x y y 2 x 4 y 4 3 16 per ft 3 6 3 8 per ft 0 5 1 25 2 2 75. 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. 18 4o inches per foot.

The slope ratio represents a certain amount of vertical rise for every 12 inches of horizontal run. 4 3 1 slope. The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7. Strangely enough if a pitch of 6 inches rise per foot is entered then the degrees generated is not 22 5º it is 26 6º.

When looking at metal roofing panel you will need to consult with the manufacturer to ensure that the metal panel you selected will work for your application. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. 8 27 2014 9 49 23 am. A low slope roof is one whose slope is less than 3 12.

The table below shows common roof pitches and the equivalent grade degrees and radians for each. The patio needs to have a uniform surface to lay on. You need to remove any vegetation soft soil and rocks before you begin. 1 4 per ft q 2 4 0 5 2 3 5 5 6 5 8 9 5 1 2 per ft 8 0 5 2 5 4 5 8 5 6 5 10 5 q 2 q 4 q 6 q 8 x 2.

However you can only use this pitch with built up roofing or specialized synthetic roofing. A 12 12 roof pitch would be selected as 12 inches of rise per foot with no fraction and the value generated by the calculator would be 45º. Generally these roofs have a pitch from 1 2 12 to 2 12 from 4 2 to 16 7. Most roof s have a pitch in the 4 12 to 9 12 range.

Low slope or steep slope commercial application. The most common slopes are.