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.
Tips and tricks.
How to attach a patio roof to an existing house.
Allowable projection clear span of cover is generally much less than wall attachment.
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.
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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.
Find the band joist by measuring down from the 2nd story window.
If you own a one story home the best place to attach the ledger is just below the home s eaves.
Utilizes the roof eave as part of the patio cover allows for taller patio roof heights.
Attaching near the eaves.
Attaching to your fascia board.
The patio is essentially unusable on a sunny afternoon in the summer.
This video looks at a couple of design options including attaching the roof ledger below that of the existing eaves and setting the patio roof atop the existing roof.
You can raise the patio roof up to 500 millimeters by removing the eaves fascia and gutter.
The back channel is connected to the rafter directly and reinforced.
If you own a two story home you can tie the ledger into a band joist.