Using Trusses For Patio Roof

Maximum rafter spans for a patio roof.

Using trusses for patio roof.

Building a porch roof using trusses the simplest form of a truss is one single triangle with fixed sides. A planar truss like the one above lies in a single plane and is usually used together to form the roof support structure. This would involve probably 2x8 trusses set at 12 on center and the support beam made of 3 2x8s laminated together set at 12 from the house so the eaves overhang is about 24. A cantilever truss allows for level coverage past the exterior wall such as patios porches entryways and other offsets in the building elevation by moving one or both bearings inward from the end of the bottom chord up to 1 4 of the span.

This method may be one of the most ubiquitous ways of attaching a. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements. 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. 4 12 i s the lowest pitch of roof that can use asphalt shingles.

Make the patio roof a little bit higher. Another option is to paint it white and brighten up the space as the light reflects off the white paint. In areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot. On a two story house you can usually tie the ledger into a band joist also called a rim joist located between the floors as shown below.

While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses. Install some riser brackets for more height. These types of trusses are often used to create multilevel roof lines or construct additions to an existing building. If attaching a patio roof to a ledger beneath the eaves does not allow for enough headroom you can set the new patio roof s rafters on the wall s top plate.

They are perfect for home owners who love throwing high end parties. Fix the back channel to the fascia boards underneath the gutter directly. Anything lower requires specialized materials. Natural wood can bring nature into your patio area and give it a tropical look.

Use it to line the underside of your patio roof for a finished look. Steeper than standard pitches are harder to walk on and cost more to roof because. Most common ways to attach a patio roof to an existing house.