See more ideas about patio roof building a porch porch roof.
Tying in a new roof to an existing roof.
Sep 12 2020 explore peter baker s board roof tie in on pinterest.
Tie into the end of an existing gable roof by removing existing facing boards wall siding and any other obstructions back to the first truss of the old roof.
The new flashing should go under the old felt and over the new felt and new roll roofing.
The big idea is that layers of the lower roof should sit below corresponding layers of the upper roof.
Once you cut the old shingles back 36 or less work the new section into the old.
Now you can begin assembling the outer rafters and attaching the rafter beam to the edge of the roof of the house.
Attach the horizontal beam by using a nail gun.
Remove siding from the house where the new roof will attach to expose rafters or other framing of the old roof.
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Depends on the slope of the new roof.
Up from the valley center and cut through the shingles and underlayment.
When a shed roof ties into an existing roof the new roof could be a simple lean to that covers a deck or porch or it could be the shed roof of a substantial addition.
Tying in to an existing gable roof.
Roofing nails to the existing structural sheathing.
A roofing diagram is on every package of shingles home depot or lowes.
Butt the first new truss against the old one.
You will be using new shingles for tying in you old and new shingles.
The easiest way to tie in the new shingles with the old is with a cut valley see four ways to shingle a valley.
The lower the slope the further it should extend.
The roofing cement will resist possible leaks overnight.
After nailing down these two boards dab roofing cement on the nails and along the outside edge.
Connect a flat roof to a sloped or pitched roof with a ledger board.
In any case the structure.
After the addition roof is framed and sheathed snap a line on the existing roof shingles 2 in.
After that to make it flush with the roof of the existing house cut the two outer rafters.