How To Tie Into Roof For A Covered Porch

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. 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. 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.

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If attaching a patio roof to a ledger beneath the eaves does not allow for enough headroom you can set the new patio roof s rafters on the wall s top plate.

How to tie into roof for a covered porch.

Install the 2x4 joists with some screws and brackets to the house edge. Measure the sightline clearance height from the roof to the house not the other way around. Use screws to secure the rafter to the sill plate. You have to make.

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. Using lag bolts and a screwdriver fasten the base of the posts to the ground. The roof deck is 1x6 attached to the top of the rafters with 1 4 inch space between boards. Make sure the 2x4 joists are turned so the boards narrow edge faces the floor of the porch.

Position the rafters on top of the sill plate. Joist hangers can help you mount each rafter to the house. The positioning of your rafters will depend on the pitch of the porch roof. The porch roof may match the pitch of your home or have a more shallow roof pitch.

I am no framer. I said all of that to say this. At the beam end the rafters are fastened with a 10 inch structural screw through the top of the rafter into the beam. Each 2x4 joist should extend across the frame by going from the house edge to the porch edge.

You can either remove the eave or just keep it. The edge of the roof of the house and the frame to the porch should be seamless now. The blocking is held low to hide the roof wall intersection and to provide a 1 inch air space at the top for a ventilation channel. 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.

Measure the size of the beam that you are going to use.

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