How To Use A Rabbet In Supporting A Roof

In this video we cover how to brace a conventionally framed roof and why it is important to do so.

How to use a rabbet in supporting a roof.

And if a deck is over 10 feet tall you should install bracing. For larger porches such as wrap around porches you will want to make sure that the support is more than you need. For instance determining whether roof trusses need support in the center entails numerous considerations rather than a simple answer. Trusses are pre fabricated triangulated wooden structures used to support the roof.

If there is also a beam in the middle of the roof divide the total load by three. This house uses trusses for the roof framing. The alternative is to build up the roof s frame with 2x8s and 2x10s. But these can bow seriously even if a deck is only 3 feet off the ground.

The roof consists of two support poles that form a low end support for a sloped roof which is attached to the exterior of an existing structure. Once you have this you can place beautiful outdoor furniture garden tools or anything you like under it. Starting at the left end run the router left to right along the guide to cut the rabbet. In the past many decks were built with 4x4 support posts also called structural posts.

The larger the roof is the more support that you are going to need. Trusses are quite common these days because they have five big advantages from the builder s standpoint. If our example roof has only one beam it must carry half of the total load or 4 000 pounds. For that reason we strongly recommend that you use 6x6s instead even if your building department does not demand them.

You will learn some great tricks for using braces to keep. To use a rabbet bit first select the pilot bearing that will cut a groove the same thickness as the plywood back. Once again a 2 by 4 inch piece of lumber is placed between the trusses and parallel to the ceiling joists. Then adjust the depth of the router so the bit will cut about 1 2 in.

A great deal depends on the pitch of the roof. This is where a high pitched roof is necessary. The other is just used to support the trusses. It is open to the varied elements from the sides and front.

That way the plywood back will be flush with the back of the cabinet. Large 8 x 8 posts are necessary for the use of supporting a porch roof. If one side of the roof is supported by the house and the other side is supported by the beam divide the total load by two as the beam is only supporting half of the roof. Deep leaving plenty of surface for gluing and fastening.

A higher pitched roof would be better for extra living space than a lower pitched roof.