How To Connect A Patio Roof To A Valley Roof

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.

How to connect a patio roof to a valley roof.

Fold new shingles over the new valley onto the old roof overlapping by at least a foot. After installing the rafters we still had to extend the porch roof back over the shed roof creating a valley on either side. Then nail shingles on the new roof and exposed areas of the old roof. I am no framer.

Those 2x s create the bottom of your new valley and your jack rafters on the porch roof will extend from that up to your new ridge board. The ledger should be attached. Locating and mounting the ledger is normally a fairly easy process. The ledger typically a 2 by 6 is usually designed to hold one end of the patio roof rafters.

To keep the porch roof framing as simple as possible we installed a structural ridge supported by posts at each end with the common rafters landing on top of the ridge. Once the patio roof is installed perfectly you will be able to furnish it so that you can get your ultimate comfort. Tie a new gable or hip roof to an existing gable or hip roof with valley rafters which perform the same function as ledgers. Strip the roofing from the old roof at the connection point to expose.

I said all of that to say this. Finish the new roof by nailing on osb sheathing covering it with roofing paper and nailing in metal flashing along the valleys and metal drip edge at the eaves.