If the structure of the roof is not strong enough it cannot support the cover.
How to build a pitched roof patio cover.
At the ends of the rafters a 2x6 or 1x6 gets nailed or screwed followed by fascia.
If you are going to use shingles to cover the patio roof do not forget to install black roofing felt along with a single layer of oriented strand board.
Put the 4 by 4 posts on the post base and then nail to the post base.
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Metal drip edge should be nailed on top of tar paper but under roofing.
When they are installed you can begin attaching roofing shingles.
Patio cover plans building.
When you are building a patio cover off of an existing roof or wall you must take all of your measurements from the point at which the patio roof will attach to the existing structure not the outside of the slab.
Drill holes for the expanding anchors every 16 inches or as specified by local codes insert the anchors hold the ledger in place and tap it with a hammer to indent the anchor locations on its back face.
Unlike the ones that rely on the roof of a house a freestanding patio is stronger and safer because it is supported by four posts that do not rely on any other buildings.
Anchor a ledger to a masonry wall with expanding anchor bolts begin by marking a line across the wall for the ledger s top edge.
Fastening to masonry walls.
When all the rafters are installed correctly form your patio roof by attaching the planks horizontally across the rafters.
Attaching the cover of your patio on the roof of your house can be arduous and harmful.
The existing slab can vary considerably throwing off crucial measurements.
Establish the pitch of your roofline and the size of your patio cover.