Roof Slope Section

Roof slope equivalents as rise.

Roof slope section.

If a roof increases in height by four inches for every foot of horizontal run it is considered to have a 4 in 12 pitch or just a 4 pitch talk in terms of pitches and you will always be understood in the roofing universe. In the us the slope of the roof is typically expressed as a ratio rise in run or rise run which by general agreement in the us roofing industry always uses 12 inches as the run and states how many inches the roof rises vertically for every 12 inches the roof goes across horizontally sloped roofs commonly have slopes like 6 in 12 6 12 or 8 12. Here we describe various methods for measuring all roof data. Run in degrees and as percentage the minimum roof slope allowed by code for any type of roof is in 12 applicable only to coal tar pitch roof systems.

Roof pitch multiplier table. Complete list of roofing types. Degrees to pitch rise in run table. This article shows how simple measurements can give the roof area.

Roof slope or pitch rise run area and other features. These assemblies have temperature ratings that vary for different roof coverings. We include on roof measurements roof measurements or estimates that can be made from ground level and several neat tricks using a folding ruler to measure roof angle or slope.