Roof Truss Versus Rafter

Steeper roof pitches require longer webs which add to the cost.

Roof truss versus rafter.

What is a rafter. Roof truss basics roof trusses are engineered wood alternatives to hand framed rafters. 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. The boards creating the slope of the roof are wider than lumber used to build trusses 2x8s 2x10s and 2x12s are most common in rafters vs.

A rafter is a traditional roof framing method in the form of elongated lumber that s normally inclined from a central ridge beam and joins with the outer walls. If we go any larger it will require more webbing inside the truss which will directly affect the cost of the truss. In finished space insulation is placed between the rafter boards and drywall or other material is fastened to the face. Rafters vs trusses for shed.

A typical 2 000 square foot home framing costs between 7 000 and 12 000 for a truss roof. This 26 span truss with a 4 12 roof pitch is the most economical truss we can build. Live loads are not always present. Constructing a roof using rafters is also known as stick framing which simply means that each rafter is built on site with lumber every piece of lumber is carefully measured cut and tightened together labor.

A typical home roof construction is composed of multiple trusses spaced out evenly over a span extending from one end of the house to the opposite end. Throw in the element of a construction budget and this is where rubber meets the road. For one you must consider the complexity of the project. 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.

Examples of live loads are snow wind rain and temporary construction loads. While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses. Rafter boards are fastened to the ridge board at the peak and the top plate where they join the wall. Why has this change occurred and what are the advantages and disadvantages of rafters vs trusses.

The same is true if we make it steeper. Cost comparison of roof rafters vs trusses. Expect to pay between 6 and 9 a square foot for rafter framing. Unlike stick built rafter construction that is done on site most trusses are made in a factory and delivered to the work site ready for installation.

How much does roof framing cost.