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 tie in patio roof under eaves.
Attaching near the eaves.
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Attaching to your fascia board.
Tips and tricks.
Utilizes the roof eave as part of the patio cover allows for taller patio roof heights.
You can raise the patio roof up to 500 millimeters by removing the eaves fascia and gutter.
The up slope end of a simple shed roof that rests near the eaves of an existing roof can usually be supported by the rafters of the old roof.
After that cut the rafters back to the wall line.
With a fascia attachment the allowable clear span is limited by the strength of the homes eave roof rafters and eave projection the eave must be strong enough to support.
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.
If you own a two story home you can tie the ledger into a band joist.
Find the band joist by measuring down from the 2nd story window.
How to attach a patio roof to an existing house.
The back channel is connected to the rafter directly and reinforced.
Allowable projection clear span of cover is generally much less than wall attachment.
The patio is essentially unusable on a sunny afternoon in the summer.