How To Add A Patio Roof To Existing Roof

Building on an existing deck.

How to add a patio roof to existing roof.

Go to the same height as the existing roof if you want to have a clean look and make the patio cover flush with the existing roof you need to strengthen the fascia and back channel by reinforcing the rafters inside the existing roof. On a two story house you can usually tie the ledger into a band joist also called a rim joist located between the floors as shown below. Then fix the back channel to the fascia boards underneath the gutter directly. Attach the rafters to the ledger boards and settle.

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Make the patio roof a little bit higher. Attach the rafters to the house with joist hangers which supported by ledger boards. Place the rafters on 24 centers attach them to the settle joists and beams toward the center. The placement of the ledger header determines the level of the roof so be sure it is positioned at the correct height and is horizontal.

Start with ledger board a ledger header board is the first step if you are attaching the patio roof to an existing structure. Attach the metal joist hangers to the rafters. Blow out the dust fill the hole with epoxy and insert the rod to the required depth. This method may be one of the most ubiquitous ways of attaching a.

Install some riser brackets for more height. Calculate the sightline clearance height about 6 feet 2 inches in this case. Work from the view back not from the house out. Let the epoxy set leaving it overnight will assure that it is rock solid and then add the anchor bolt anchor washer and nut and tighten.

8 inches in this case.