Roof Pitch Factor Chart

Roof pitch angle and slope factor chart.

Roof pitch factor chart.

In the usa the range of standard pitches is anywhere between 4 12 and 9 12. The rise and the length. 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. The combination of two numbers are used to display or show the roof pitch.

Roof pitch varies depending on culture climate style and available materials. Roof pitch refers to the slope which the rafter creates. Roof pitch degree table. 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.

Image 1 12 to 12 12 roof pitch 7 12 pitch. The roof pitch factor is also used to calculate the length of common rafters. Download the slope chart pdf. The headache of using pythagoras and trigonometry can be spared by making use of these charts.

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. Often you express roof pitch as the ratio between the rise and the run in the form of x 12. Roof pitch is a term describing how steep or flat your roof slope is. Most commonly a roof pitch will be from 0 flat to 12 45.

The pitch of a roof is determined by 2 numbers. Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof. In the uk the typical house has a pitch between 40 50 although 45 should be avoided. 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 is a term used in the roofing industry to describe the angle slope of a roofing structure. For tile shingle slate and metal roofing. Roof pitch factor chart you can easily find roof pitch factor chart online from where you can take help in calculating pitch factor for your roof. 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.

A roof pitch of 4 in 12 4 12 has a rise of 4 and a run of 12. The roof slope factor chart also consists of conversion factors to determine the slope of the roof. We included a roof pitch chart below the 7 12 example image and the calculator below that. Roof pitch angle and slope factor charts.

You just have to go online and there you can search this chart you will surely find the one. Find the square root of the result. 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 slope of the roof provides the rise and the run to be plugged into the equation.