Many building departments require a local architect or engineer to design plans for porch roofs because of the increased snow roof and wind loads created by adding a roof.
Adding a roof to your porch.
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Make a cutting on one of the sides of the horizontal roof beam on an angle.
Secure the truss that is closest to the house first with nails on both sides.
Adding a roof to your porch provides you and your porch with much needed protection from the sun wind rain snow and ice.
Position and secure the gable porch truss flat against the top plate of the porch s end.
You can think of something bigger and better.
You will need to attach the porch rafters to the house roof rafters and replace the roofing and flashing.
However you must ensure the new porch roof matches with your existing roof seamlessly to enjoy these benefits.
Attach the horizontal beam by using a nail gun.
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You have to do it thoroughly so that the rafters sit flush on it.
After that to make it flush with the roof of the existing house cut the two outer rafters.
Start nailing the ridge board to the gable roof.