Patio Attached To Roof Using 4x6 Joist

For more information see our disclosures here.

Patio attached to roof using 4x6 joist.

While your beam size ultimately depends on design factors such as whether you include a covered roof structure or open lattice strips a familiarity with conventional beam spans gives you an idea of how far apart you can space your posts. 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. The smallest beams for patio covers are typically 4 by 6. In addition i would add another 2x6 under the existing 2x6 and use adhesive to sister onto the 2x12 but also under the existing 2x6.

Use construction adhesive and nail as you would any normal double joist or header etc. 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. In this situation i would use double 2x joist hangers at each end of the joists. An essential part of planning a patio roof or gazebo project is determining the number size and spacing of rafters beams and posts according to the loads they will carry.

Read on to find out how to attach a patio roof to an existing house. I would keep the tops of each joist flush. This new patio cover roof plan replaces the ledger board that you might attach to existing fascia with a 4x6 beam supported by 4x6 posts. Attach the horizontal beam by using a nail gun.

You have to do it thoroughly so that the rafters sit flush on it. Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. After that to make it flush with the roof of the existing house cut the two outer. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths.

When the 4x6 beam is in place and supported by the 4x6 posts the existing roof does not carry any of the weight of the new patio cover roof. Free standing patio cover plans. Make a cutting on one of the sides of the horizontal roof beam on an angle. Recommended beam joist spans for deck framing.