Strength Of Truss Roof

I d go to your local truss manufacturer and give him all the info i listed above and have him run it through his truss calculator.

Strength of truss roof.

Trusses are made up of four main parts. If the bottom chord of a roof truss functions as a floor joist such as in an attic room it carries a live load that also varies by use but a typical live floor load for a residential space is about 40 pounds per square foot. The live loads a truss is required to bear are determined by local building codes. He adds that connector plate manufacturers have done a lot of research in how the pattern is laid out to maximize the strength of the plate connection using various species of wood.

The straight lengths of wood known as members that roof trusses built with are connected with intersections that distribute the weight evenly down the length of each member. These pieces are known as upper cords and there are two of them in each truss. The upper angled parts correspond to the common rafters used in stick framing roofs. Sean o connor of robbins engineering in tampa fl designers plate fabricators and truss system engineers explains that roof trusses create a stronger roof structure because they are.

It ll take him about 5 seconds and you ll know for sure. The bottom horizontal of the triangular truss form which corresponds to the joists in stick framed roofs is known as the lower cord.