Roof Load Width

If your roof is pitched enter the length and width of the flat area covered by the roof.

Roof load width.

Intuitively this is the number of inches of snow on your roof in the place where the cover is the thickest. Step 2 determine dead load by identifying the amount of each construction material used in the roof. In order to stay intact and in place a roof must be able to resist loads both permanent and temporary that are pushing. If you can t measure along the top chord divide the span horizontally from plate to plate by 2 then with a scientific calculator divide by cos cosine and then the pitch of the roof.

The total load is 4 000 pounds. In the example the beam spans the 10 foot width of the roof. Rlw is used to calculate the sectional size of some roof members and supporting wall. Multiply the length by the width to get the measurement for the area.

L stands for the span of the beam in feet. Fill in the parts of the formula that are already known. So if the span was 8000mm and the roof pitch 20 degrees then. You can enter this value either as a ratio x 12 or as an angle whichever suits you better.

This video looks at roof load width rlw. Load limits on the roof of a building. This is the sixth video in the series on the timber framing code. Roofs are under a lot of pressure.

Length and width of your roof. For the initial calculation f can be estimated at 1 000. You can enter these values in any units you d like including meters and feet. 8000mm 2 4000mm.