Truss Spacing For Metal Roof

In addition each roofing truss will be made of a two by four piece of lumber or in areas with expected or usual heavy snow fall there will be trusses which are two inches by six inches.

Truss spacing for metal roof. After the braces are in place you will mark the distance from the edge of the building to where you would like to attach your first truss. Wider panels allow for greater spacing between rafters. Also important to note here is that a two inch in a. 2 6 roof purlins will not span the 15 distance and do not attempt to build your own trusses.

Typical roof truss spacing means that they are usually about 24 inches from centre which means at the centre of one truss there will be a two foot gap or twenty four inch gap until the centre of the next truss. For instance if you are spacing your trusses 18 inches apart make a mark 18 inches from the edge. This is most likely the standard size that you will find on pre made roof trusses. Rafter spacing is based on the width of the metal roofing panels.

A metal roof must also allow for some overlap on each side of the panels which will reduce the effective width of the panel. These standards are as follows. As most building these days are using those pre made trusses on the roof 24 inches become the main size for any roofing construction when it comes to its truss installation. 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.