Extending Existing Roof Overhang

However for larger extensions you ll need to hire a professional to get up there and remove large portions of the roof before extending the overhang.

Extending existing roof overhang.

When extending rafters the rule of 2 to 1 is usually sound. I limit the overhang to 2 ft. The cost of extending my 30 foot long roof overhang 14 inches was 340 or 11 50 per running foot for materials. The eaves probably will be the easiest to extend because getting proper nailing on the existing rafters will likely be relatively easy.

A good estimate for a contractor to do this same roof overhang extension would range from 50 to 85 per running foot. This meaning that if you plan on extending the rafter 12 inches you should extend the sister 24 inches from the bottom of the old rafter up. If you only need an additional 1 2 2 inches of overhang this can easily be achieved as a diy project. Extending the overhang on your roof can be a tricky endeavor since it involves working on an elevated angled surface.

Wider overhangs would require some engineering to ensure adequate support. Start conventional overhangs by taking off the existing fascia and any other trim that covers the rafter tails. Extending a gable roof can be tricky since it involves working on the roof but you may be able to do it yourself if you only need to add 1 2 2 inches 1 3 5 1 cm. This cost did not include any labor or waste disposal fees.