Take careful measurements to determine how many trusses you will need.
How to put a addition on a roof.
Kick it or keep it.
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.
To tie into the side of an existing roof put a new roof truss on the walls of the addition brace it upright then snap chalklines on the shingles to mark the center line of the new roof valleys where old and new roofs will connect.
If the addition s roof mimics the look of the existing roof lines it won t stick out as an obvious add on.
It also helps to copy the pitch of the existing roof since it likely takes important.
Choose a roof pitch 3 12 and roof structure 2x6 this places the new roof on top of the existing roof.
Re lay the shingles you removed from the existing roof.
Wrapped up framing to get roof ready for sheathing.
The next question is what to do with the existing eave under the new roof.
To tie the design together peter chose to cut the rafter tails off the extend the exterior wall up to the underside of the new roof.
Bed the end of each shingle in a 2 in wide ribbon of roofing cement placed 4 in.
Shingle the addition roof letting the new shingles fold through the valley center and onto the old roof deck by at least 1 ft.
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Up from the valley center.