It s difficult to estimate the exact cost of a gable roof addition because there are many different types.
Home additoin with gable roof.
More often than not a homeowner wants to know if adding a gable roof to an existing roof is best done at the front or back of the house.
One of the most common dormer types the a roof or doghouse dormer is simply a box with a window added to the roof that is topped with a gable that is tied into to the existing gable.
If you re adding to the gable end of the house the side wall that goes up to the roof s peak it s.
This is the simplest solution a single slope that s attached to the original house at the high point and.
There are four main roof options to consider.
That s for a 2 inch by 10 inch beam that s 16 inches on center.
Either the addition is added to form a t shape to the house with the ridge running perpendicular to the main house roof or the addition is continued on the end of the house making it longer with the ridge running the same way as the existing house.
It costs about 5 50 per gable beam to add this type of roof to an existing house.
This is a safer choice especially if you want to preserve the facade of your house.