The sloping angle of an overhang diverts water away from your house to prevent water from spilling onto the exterior walls and seeping indoors. Follow these steps to build a new overhang or fix the faulty one you already have.
Step One – Opening the Roof Up
Using your hammer and pry bar, remove the facing board at the base of your roof. You should be able to see into the attic area of the house. You will see the roof rafters or stud boards in the roof spaced about 16 to 24 inches apart.
Step Two – Creating a Rafter Tail Template
Next, make a template to use for creating the rafter tails. Take a 2-foot piece of lumber (approximately the same width as your existing rafters) and butt it up against one of the existing rafters. If the 2 pieces of lumbar are approximately the same size, go ahead and cut the 2-foot piece of lumber to the look and style that you want to use. This piece of lumber will serve as your template for cutting the other rafter tails.
Step Three – Attaching the Rafter Tails
After you have cut enough rafters tails to connect to each existing rafter, attach each using a construction adhesive like Liquid Nails. Then use common nails or deck screws to make sure the rafter tails are securely fixed to the existing rafters. Repeat the process until all rafter tails are attached.
Step Four – Placing the Plywood Roof Base
Using plywood that is the equivalent in thickness to that used on your existing roof, cut sections approximately 24 inches in width. Nail these sheets of plywood to the top of the rafter tails. Continue doing this until you have plywood sheets attached to all sections of your new overhang.
Step Five – Replace Facing Boards
Begin reattaching the facing boards to the ends of the new rafter tells. Alternatively, you could use cornice trim or soffit boards.
Step Six – Roofing the Overhang
Finally, use materials that are similar to the existing roof materials to roof your new overhang section. Try and match the materials as closely as possible.
To refurbish your existing overhang, simply tear out the existing rafter tails and replace them with new ones. Likewise, replace any damaged plywood or facing boards.