To extend the overhang of your roof, you will need to provide plenty of underlying support. … Be sure to cut your rafter tail extensions about three times the length of the final overhang that you plan to add. You should also be sure the lumber you use is the same size as your home’s existing rafters.

How much does it cost to extend a roof?

It typically costs between $15,000 to $125,000 or more to raise a roof on your home. Get quotes from local contractors for the best estimate. Raising a roof is a significant investment that can dramatically increase living space in your home, improve or customize the way it looks and even prevent weather damage.

Is it possible to raise the roof on a house?

Generally, there are two types of roof structures: stick and truss. Truss roofs are the ones that are easier (and most commonly) raised. You can still raise stick roofs, but it will most likely require you to tear down the existing roof and rebuild the structure.