How Tall Is A Roof Truss

The 6 12 pitch means for every 12 inches horizontally you rise 6 inches vertically.

How tall is a roof truss.

The truss is a framework consisting of rafters posts and struts which supports your roof. Depending on your roof slope add 4 to 5 inches for heel height. Base of triangle base of roof. Height calculation for a common truss calculate the height of a common truss using the building width and the slope of the roof.

Divide the run by. The length of the hypotenuse of this small triangle is therefore 1 06 ft. Multiply the roof pitch by the run factor. For the top chord lumber.

Without knowing the width of the building it is impossible to come up with a specific answer. Then add about 4 in. The result equals the total distance the roof rises. 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.

Divide the width of the exterior house frame in inches by two. This provides the run for one side of the roof in inches. Now set up the following calculation. The important point to keep in mind when you use your truss calculator is that every truss calculation is completely unique and is based on the size of your roof and its specific dimensions.

This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. Here s an example of how to calculate the height of a common shaped pitched roof truss. Suppose the base of your roof is measured as 40 feet. If you can t get the heel height most residential trusses will have a 3 top cord.

Take 1 2 the span and multiple it by the pitch. An approximate height of a pitched truss can be calculated with the following formula.