How To Add A Back Porch Roof With No Leaks

This flashing has two sides one connected just on top of the porch roof and the other to the exterior wall.

How to add a back porch roof with no leaks.

Step 1 determine the location and cause of the leak. The flashing on the wall should be flush against it and the porch roof portion should be on top of the shingles. Try to keep the nails as flush as possible to the edges. The contractor installed a waterproof layer over the plywood and then ceramic.

Yep you read the title right i think. The positioning of your rafters will depend on the pitch of the porch roof. Joist hangers can help you mount each rafter to the house. Melting ice that drips onto a home addition also complicates the matter when you have a leak.

Lay the cut flashing down at the corner over a shingle that is already in place. Your back porch is a part of your home and should reflect your environment both inside and out. After that to make it flush with the roof of the existing house cut the two outer rafters. I have a rough illustration below that explains it better but i got called to fix a leak in the soffit of a back porch where the now ex husband had built a porch roof and tied it into the house roof well kind of from the roof top it looks like the gabled end of a roof but the siding comes down to the shingles and forms like a dam i don t know.

Another technique for avoiding leaks involves laying rows of shingles over tar paper to prevent damage to the sheathing. Make a cutting on one of the sides of the horizontal roof beam on an angle. The porch has a roof over it with a decent overhang but the floor system is regular wood joists covered with plywood. If the leak is dripping down just right in front of the house then there is a problem with the flashing connecting the roof to the exterior walls of the house.

You have to do it thoroughly so that the rafters sit flush on it. Gently hammer the 45 degree cut around the corner of the porch roof seam. The porch roof may match the pitch of your home or have a more shallow roof pitch. Place the flashing between the joint of the house and the roof.

Attach the horizontal beam by using a nail gun. The corner cut should be facing upwards. Getting some good back porch ideas could turn your overlooked porch into a well worth it investment that will add value to your home. Back porches are often disregarded and overlooked by homeowners because no one sees them.

Position the rafters on top of the sill plate. Nail the flashing securely in place using roofing nails.