Roof Trussers Distance

The same thing is true for the bridge of the truss.

Roof trussers distance.

Putting the trusses into place. The average roof will overhang the side walls of the home by just a small amount 12 18 inches. Half of that distance is referred to as the run. The trusses should be a little longer than the exact width to allow for overhang and you will need sufficient trusses to mount across the length.

These standards are as follows. Most economical when the 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. The roof span is the distance between the outsides of the walls that will support the roof. The run forms the base of a right angled triangle with the height that is equal to the rise of the roof.

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. These steel joints are needed to support the overall truss. The more complex the truss framework is the greater quantity of these joints will be required. Most are spaced between 18 26 inches apart.

So the space between rafters can be greater without reducing the maximum span. Common spacing for trusses on this type of building is often between 2 and 4 feet but trusses built with advanced designs may allow spacing as great as 8 or 12 feet. The rafters of the truss will be used as the hypotenuse highest part of the triangle. The same concept holds true for roof trusses.