How Roof Trusses Work

These steel joints are needed to support the overall truss.

How roof trusses work.

What s more roof trusses are built in a factory under a controlled environment with the highest quality machinery. House plans that include a trussed roof generally involve too many location specific variables for designers to be able to provide the truss design that will be required. The alternative is to build up the roof s frame with 2x8s and 2x10s. Trusses are quite common these days because they have five big advantages from the builder s standpoint.

Advantages of trusses less expensive. Install the roof trusses. However they are less expensive than rafters. The most common truss a 2 4 fink truss is designed to support several different loads.

The same thing is true for the bridge of the truss. Toe nail them into the top plate to secure them and then make sure they are braced laterally using blocking or long purlins. The geographical location of your proposed home plays a critical part in the truss design. Whether you re framing a new roof or remodeling an existing truss roof it s important to know what components make up a truss and how the.

Finally the truss calculator will compute the best dimensional method to connect the pieces of the truss with steel joints and a bridge. Once the trusses are constructed lift them into place and set them onto the top plates of the exterior walls just as you would a beam or joist. For a 2 000 square foot home roof truss installation typically costs between 7 200 and 12 000 you ll spend anywhere from 1 50 to 4 50 per square foot for materials alone or between 35 and 150 though extremely long and complex types can reach 400 each labor runs anywhere from 20 to 75 per hour ranges in both materials and labor are due to location size and roof complexity. This house uses trusses for the roof framing.

A roof truss takes the weight of the roof and the snow on the roof if you live in that kind of climate and transfers it out into the load bearing walls of your house. A bridge truss takes the weight of the cars and trucks passing over it and transfers it to the piers. Trusses are pre fabricated triangulated wooden structures used to support the roof. How trusses work with pre designed house plans.