Apr 26 2018 explore christina romero s board porch beams followed by 132 people on pinterest.
Open beam metal porch roof.
Maximum rafter spans for a patio roof in areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot.
Porch roof ventilation options.
They also can be boxed in with wood after installation.
See more ideas about house exterior porch columns house with porch.
For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements.
Beams can be solid lumber or be built from lengths of 2 by lumber nailed together with 1 2 inch pressure treated plywood spacers in between this forms a 3 1 2 inch thick beam that is equal to the width of a 4 by post.
Metal beams could also be used and would eliminate the need for most of the supporting posts across the front of your porch.
Step 1 determine the load per square foot that the roof must support.
Of course all of these solutions are a little more expensive than simply nailing 2 x 10s to the sides of your existing posts.