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.
How to add a patio roof to existing roof.
If attaching a patio roof to a ledger beneath the eaves does not allow for enough headroom you can set the new patio roof s rafters on the wall s top plate.
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Attach the metal joist hangers to the rafters.
Determine the beam size.
This method may be one of the most ubiquitous ways of attaching a.
Fix the back channel to the fascia boards underneath the gutter directly.
Make the patio roof a little bit higher.
Building on an existing deck.
Then fix the back channel to the fascia boards underneath the gutter directly.
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.
Check local building code to see if you can attach a patio roof directly to your deck.
Install some riser brackets for more height.
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.
Work from the view back not from the house out.
8 inches in this case.
Attach the rafters to the ledger boards and settle.
Choose a roof pitch 3 12 and roof structure 2x6 this places the new roof on top of the existing roof.
Start with ledger board a ledger header board is the first step if you are attaching the patio roof to an existing structure.
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.
Place the rafters on 24 centers attach them to the settle joists and beams toward the center.
Calculate the sightline clearance height about 6 feet 2 inches in this case.