The bottom of our blind valley was about 30 inches short of the bottom of the porch roof so we extended the line of the valley down to the edge of the new roof.
How to connect a patio roof to corner valley roof.
You ll have a steeper part of your roof turning into a lower slope so there s a steeper pitch up top and a lower pitch on the bottom.
Cut two rafters with a circular saw to the pitch of the addition roof and nail them across the rafters on the old roof.
Check out harry wells as he explains wh.
How to tie a additions roof to existing roof roof designs to attach to existing home how to construct a roof from an exsisting shead how to attach a deck roof to existing roof how to add a roof over porch cost to tie into existing roof attache porch roof on house attach shed roof to house adding a roof to screened in porch adding a roof to existing.
A house attached patio roof takes advantage of the house s structure by supporting one end of the roof on a ledger mounted horizontally to the house.
The ledger typically a 2 by 6 is usually designed to hold one end of the patio roof rafters.
Locating and mounting the ledger is normally a fairly easy process.
They form an upside down v with the point at the top of the addition roof.
Correctly installing flashing between a patio cover and house at the roof line is crucial to prevent water intrusion.
Attach the horizontal beam by using a nail gun.
Use 1 1 4 inch nails to cover the outline of the roof with strips of metal eave flashing also called edging.
Place corner pieces where panels will meet bends at the edge of the roofing.
We need to do something where that change happens so the panels can go down and water can come off hit the lower slope and come off the roof.
If there are gutters installed on the eaves the eave flashing should be installed to overhang the lip of the gutter by about 1 2 inch.
To do this we had to extend the plane of the shed roof out over the porch roof creating a small triangular extension of the existing roof.
After that to make it flush with the roof of the existing house cut the two outer rafters.
Make a cutting on one of the sides of the horizontal roof beam on an angle.
You have to do it thoroughly so that the rafters sit flush on it.