Here we have a wood framed gable roof.
Open beam porch roof.
For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements.
Roof vents help make a home more energy efficient and allow humidity and hot air to escape the.
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.
You can repeat the same process using a different breadth if you want a beam that is wider or thinner than 6 inches.
This means the example porch would need a 6 inch by 8 inch beam.
Continuing on from part 3.
Porch roof ventilation options.
Floor beam span tables of residential structural design we will now look at roof rafter and beam design.
In the interior of a building finishes and details tend to obscure the structural framework of the building.
In the example d calculates to 7 75.
Next the entire roof including the newly installed post and beam porch roof is covered with a layer of felt paper.
The dual purpose of the felt paper is to provide protection from potential inclement weather conditions and will also serve as a vapor barrier between the sips and final roofing material.
This tells you the size of the beam needed to support the porch s roof.
Let s consider a basic gable wood roof framing design.
One side is attached to the exterior wall of the home and the other side is supported by five 6 x 6 treated posts.
See more ideas about patio design backyard patio outdoor fireplace.
Proper roof ventilation is an important aspect of home construction.
The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial.
The weight of the roof rests on the ridge beam.
I have a porch roof attached to the rear of my home size is approximately 6 x24.