Roof pitch refers to the slope which the rafter creates.
Roof pitch 1.
Roof pitch refers to the amount of rise a roof has compared to the horizontal measurement of the roof called the run.
With insufficient pitch a roof can leak rain and with a pitch too great its stones will fall loose.
Measure from the attic.
One method to find the pitch is to climb on the roof and measure the rise for a 12.
In the uk the typical house has a pitch between 40 50 although 45 should be avoided.
Thatch is one of the oldest roofing materials and needs a steep pitch to drain properly some types of stone roofs have a very restrictive roof pitch.
In the roofing trade the go to term is pitch and it is expressed in terms of 12 inches so the pitch of a roof is determined by how many inches the slope rises for every 12 inches it runs horizontally.
How to calculate the pitch of a roof method one.
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.
Measure from the roof.
Often you express roof pitch as the ratio between the rise and the run in the form of x 12.
Another method to find the roof pitch is to go into the attic and measure the rise.
Roof pitch varies depending on culture climate style and available materials.