Roof Truss Vs Rafter

One other benefit to using rafters over trusses is the lead times.

Roof truss vs rafter. The reason for this is that flat or shallow roofs withstand much more abuse and loads than steeper roofs making wider shed roof rafters a necessity. Rafter boards are fastened to the ridge board at the peak and the top plate where they join the wall. Trusses only use 2 4 lumber and are constructed using a web of 2x4s for strength. Cost comparison of roof rafters vs trusses.

Roof truss basics roof trusses are engineered wood alternatives to hand framed rafters. Roof framing has undergone a quiet revolution over the past half century. This can take several weeks. A typical 2 000 square foot home framing costs between 7 000 and 12 000 for a truss roof.

Lastly remember that we are not talking about trusses in this article just rafters. Expect to pay between 6 and 9 a square foot for rafter framing. While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses. Live loads are not always present.

The insulation will go between the rafters and drywall will be applied directly to the face of each member. Steeper roof pitches require longer webs which add to the cost. Throw in the element of a construction budget and this is where rubber meets the road. They support live and dead loads by efficiently transferring the loads to the building walls or supports.

Roof truss systems require engineering and drawings. If we go any larger it will require more webbing inside the truss which will directly affect the cost of the truss. Again trusses can create this same open area but not quite as efficiently. Stick framing is slightly more because of increased labor.

The same is true if we make it steeper. This 26 span truss with a 4 12 roof pitch is the most economical truss we can build. Just as there are many types of roofs with many roof parts there are many different types of roof trusses this extensive article explains through a series of custom truss diagrams the different truss configurations you can use for various roofs. How much does roof framing cost.

The method that utilizes rafter roof construction is generically known as stick framing the rafters are lengthy planks usually 2 x 10s or 2 x 12s that slope down from the central ridge beam at the peak of the roof intersecting with the outside walls. Trusses for residential homes. Trusses are gradually replacing the conventional rafters to the point that nowadays more than 80 percent of new residential construction uses trusses to support the roof.