The positioning of your rafters will depend on the pitch of the porch roof.
How to tie a porch roof into an existing roof.
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 porch roof may match the pitch of your home or have a more shallow roof pitch.
Choose a roof pitch 3 12 and roof structure 2x6 this places the new roof on top of the existing roof.
If you decide on a shallow pitch porch roof use 2 by 6 foot rafters.
Read on to find out how to attach a patio roof to an existing house.
Therefore you need to install a patio roof.
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Use screws to secure the rafter to the sill plate.
You may need a structural engineer to help with design of trusses and rafters.
Sep 12 2020 explore peter baker s board roof tie in on pinterest.
You could cut the new ridge board into the existing roof and tie it into the house rafters or trusses but i am not sure that is necessary.
The next question is what to do with the existing eave under the new roof.
However the glare of the sunlight or the pouring rain will ruin it.
Tie a new gable or hip roof to an existing gable or hip roof with valley rafters which perform the same function as ledgers.
Tying a gable roof into an existing roof is a long expensive project usually undertaken only when there is a major addition or renovation to a house.
Strip the roofing from the old roof at the connection point to.
It does not only protect you from the heat and rain but it also accentuates your house.
It is not a job for beginners.
Kick it or keep it.
You will need building help and a large construction dumpster for debris.
See more ideas about patio roof building a porch porch addition.
Joist hangers can help you mount each rafter to the house.