Roof Pitch Factor Chart

A 10 slope roof should not be confused with a 10 pitch roof as a 10 slope roof means that the roof rises by ten inches for every foot of run.

Roof pitch factor chart.

Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof. Roof pitch is a term used in the roofing industry to describe the angle slope of a roofing structure. You can assess this in two ways either as the roof pitch angles which the rafters make with the horizontal or the proportion between the run and the rise of the roof. The combination of two numbers are used to display or show the roof pitch.

In essence a roof pitch chart is provided as a rough guide usually by a roofing company to help you see what the average roof pitches tend to be. The headache of using pythagoras and trigonometry can be spared by making use of these charts. Roof pitch is a term describing how steep or flat your roof slope is. You just have to go online and there you can search this chart you will surely find the one.

Once you ve figured out the pitch of your roof you can consult the following chart to discover the slope factor and hip valley factor. What is a roof pitch chart. Most commonly a roof pitch will be from 0 flat to 12 45. Roof pitch varies depending on culture climate style and available materials.

The roof pitch factor is also used to calculate the length of common rafters. The rise and the length. Valley hip factor. Roof pitch angle and slope factor charts.

In the uk the typical house has a pitch between 40 50 although 45 should be avoided. Roof pitch degree table. If this isn t practical then perform the same measurement on the underside of the roof. For tile shingle slate and metal roofing.

Often you express roof pitch as the ratio between the rise and the run in the form of x 12. The pitch of a roof is determined by 2 numbers. We included a roof pitch chart below the 7 12 example image and the calculator below that. The roof slope factor chart also consists of conversion factors to determine the slope of the roof.

Download the slope chart pdf. Image 1 12 to 12 12 roof pitch 7 12 pitch. Roof pitch angle and slope factor chart. Find the square root of the result.

A roof pitch of 4 in 12 4 12 has a rise of 4 and a run of 12. The slope of the roof provides the rise and the run to be plugged into the equation. Usually they come in the form of a roof pitch diagram chart but other times it will be presented to you in a conversion format. Roof pitch refers to the slope which the rafter creates.