Sloping Flat Roof Trusses

A flat roof truss is also known simply as a flat truss and is not completely flat but rather slightly sloped in order to allow water to run off of the roof.

Sloping flat roof trusses.

In order to make this correctly you will have to work out exactly what you need to do with your truss in order to create a flat roof. Pitch slope the pitch or slope is the incline of the roof expressed as a fraction describing the rise over the run. For example a slope of 6 12 means for every 12 inches of horizontal distance the slope of the roof will rise 6 inches vertically. Compare click to add item 24 spreadweb residential roof truss 5 12 pitch 87 to the compare list.

Roof slope and the roof load that which kind of truss shall be suitable. Click to add item 24 spreadweb residential roof truss 5 12 pitch 87 to the compare list. Double sloping flat truss. There are different flat trusses depending upon the thickness width and layout of the internal webbing.

Difference in slope between the top and bottom chords is at least 3 12 or the bottom chord pitch is no more than half the top chord pitch. It depends upon the selected truss span. Polynesian duo pitch double scissor. Sloping flat trusses are used almost like a joist in settings where the interior ceiling pitch is desired to be the same as the roof pitch.

The rise will be the elevation change over the 12 inches. It takes the manufacturer s recommendations the unique conditions of the roof as well as the skills and the expertise of the installer to arrive at the right slope. In this section you will find information pertaining to roof trusses. Add to list click to add item 24 spreadweb residential roof truss 5 12 pitch 87 to your list.

The run or the base number is 12 inches. Sloping flat trusses are typically supported by a ridge beam or girder truss at the roof peak and have sloping flat trusses on both sides to create wide open span spaces in public venues like. Truss types 2. Page links for roof section.

Click the arrows on the bottom of each page to navigate. Flat the most economical flat truss for a roof is provided when the depth of the truss in inches is approximately equal to 7 of the span in inches. A mono truss is a one sloped truss that forms a right angle triangle. Sloping flat truss.

In general the minimum slope for a flat roof is 1 0 but as stated earlier this is only possible in theory.