Building a new roof involves making a series of important decisions, one of these is choosing between rafters and trusses. In today’s post, the asphalt roofing contractors at Austin Pro Siding, Windows & Roofing helps you make a decision with this quick and easy guide to these roofing components.
What Are Rafters?
Rafters are individual, slanted beams that run from the top of the roof to the bottom edges. Their primary role is to support the roof deck and, consequently, the roofing plane itself. The term “rafters” is sometimes used to refer to a complete roofing system, but it’s important to make the distinction that rafters are part of a traditional roof frame, along with the ridge board, ceiling joists and other components. Traditional roofing systems are built on-site using treated timber and are more suitable for roofs with steep slopes.
What About Trusses?
Trusses are, conversely, a complete roof framing system. These prefabricated structures are designed and built off-site, making them more suitable for new constructions. Unlike traditional roofing systems, trusses are more suited for low-slope roofs because of their web-like structure. Trusses can be made from wood, metal or composite, which gives the homeowner some flexibility on their choice of material.
Which One Is Best for You?
Choosing between a traditionally-built roof or one with trusses involves weighing some variables. We have mentioned above how rafters are best suited for steep slopes — this is because the load is evenly distributed through a symmetrical shape. Trusses, on the other hand, are ideal for homes with asymmetrical footprints. Slope will also affect your material selection. Asphalt shingles and sheet metal roofing work best on steep slopes, while tile and slate are best for low-slope roofing.
If time is a factor, trusses may be the better option because they’re typically built offsite, then delivered and installed as a completed system. This means building the roof frame can be built while the old roof is being removed, which can help streamline the project schedule. However, this means trusses will be limited by the house’s footprint and the roofer’s capacity to transport the structure. Ultimately, your project requirements will decide on whether rafters or trusses are best for your home.
Our roofers at Austin Pro Siding, Windows & Roofing can help you with designing and building your new roof. Give us a call at (512) 550-0000 or (210) 906-0046, or fill out our contact form to schedule a consultation.
