But it can be extremely difficult to match new materials to old.
How to match a roof addition.
The best way to tie your addition s roof in with the rest of the house is to take cues from the existing architecture.
If the ceiling of the new addition can be lowered an inch or 2 this gives us room to build a truss to match on the roof top.
Rather than a single slope a gable roof consists of two slopes that meet at a peak running down the middle of the roof.
Also try to match finish materials such as siding roofing and trim.
It is not a job for beginners.
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.
Or if the addition is for a garage a lot of times the floor is lower than the house floor anyway and it can be adjusted up or down to make a regular framed wall come out slightly lower than the existing house wall.