Take careful measurements to determine how many trusses you will need.
How to put a addition on a roof.
If the addition s roof mimics the look of the existing roof lines it won t stick out as an obvious add on.
This is the simplest solution a single slope that s attached to the original house at the high point and slants down to the outer wall of the addition.
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.
The next question is what to do with the existing eave under the new roof.
Wrapped up framing to get roof ready for sheathing.
Re lay the shingles you removed from the existing roof.
Bed the end of each shingle in a 2 in wide ribbon of roofing cement placed 4 in.
Up from the valley center.
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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.
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Choose a roof pitch 3 12 and roof structure 2x6 this places the new roof on top of the existing roof.
It s easy for the contractor to build and easy on the homeowner s budget says schultz but it makes the new space look like an obvious add on.