Porch Roof Rafters

The roof rafters provide integral structural support to the roof.

Porch roof rafters.

In this video you will learn about figuring the angle for a top cut on porch rafters that are going over another roof surface and also about a useful jig to. Rafter span tables use these tables to determine lengths sizes and spacing of rafters based on a variety of factors such as species load grade spacing and pitch. Building a porch roof requires basic carpentry and porch roof framing knowledge. I will be setting 4x4 post every 6 with 2 2x6 s with 1 2 osb sandwiched between.

For a porch roof the beam needs to be sized according to the maximum snow loads in your area and you must know enough about the porch design to determine how the load will be distributed and over what distance the beam will carry the load. Just enter the dimensions of the roof rise and run to get started. Structures such as sheds or barns can be frames with rafters every 24 again make sure to consult local codes. If your project had a rafter length of 8 or less a safe and strong method is to use 2x8 framed 16 on center.

Ask question asked 4 years 3 months ago. Can i use 2 x6 as roof rafters for porch addition over concrete patio. If you re building rafters and aren t sure where to start when determining the length of your lumber you re in the right place our rafter stock size calculator shows you how long your rafters should be so you ll know what you need in terms of framing lumber dimensional lumber studs and more. Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter.

We show you how both a typical rafter style porch and truss roof area constructed. A fascia board which is a roofing material that helps compensate when there are inevitable inconsistencies in rafter length will mount on the front and on the sides of your porch roof frame. It is always better to have a large rafter rather than be concerned with a sagging roof. Active 3 years 2 months ago.

If you re framing a gable roof on a new house or building a shed or even a doghouse with a gable roof you ll need to cut a number of roof rafters. Viewed 10k times 1. Rise and run affects drainage style and installation repair and even what roofing materials you can use. Visit the roof framing page for more information on cutting roof rafters and visit the roof pitch calculator for determining rafter lengths based on rise and run.

Will i be able to span a concrete slab of 11 6. If i tie into a 6 12 pitch roof with 2x6 s. Frame your porch roof by continually adding rafters until it extends one foot past your porch walls or support columns.