Flashing Porch Roof To Asfault Roof

The wood beneath it is called the fascia board or rake of the gable the fascia board is colored in blue in the image above.

Flashing porch roof to asfault roof.

Flashing should overlap the roof covering material but on asphalt shingle roofs for aesthetic reasons the part of the headwall flashing that extends down over asphalt shingles is often covered with a course of shingle tabs. While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately. Most flashing is 8 inches wide. Gently hammer the 45 degree cut around the corner of the porch roof seam.

Flashing is generally 8 inches wide with 4 inches going on the wall of the house and 4 inches going on the top of the roof shingles. Don t mistake this condition for headwall flashing routed beneath the shingles and call it a defect. Vent flashing done right to prevent leaks back up roof vent boots with flashing counterflashing and proper shingling. Installing step flashing to prevent roof leaks step flashing spans the joint between roof shingles and an adjacent side wall.

Use a metal break tool to bend the flashing according to the angle of the roof joint. The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak. Open valleys have metal flashing to protect this critical area of the roof. You need to make a bend of 10 degrees one half inch from the edge.

Cut the flashing with tin snips if you need to cut it. Notice in the image above that the end of an asphalt roof extends outward just a bit covering and protecting the wood beneath it as it should. Nail the upper edges of the flashing to the roof sheathing where the shingles were removed with 6 penny. Position the flashing with the lower edges atop the carport roof panels along the transition.

Use the metal break tool to bend the flashing lengthwise in the middle according to the angle of the roof joint. Here s how to install it correctly. Lay the cut flashing down at the corner over a shingle that is already in place. The decorative trim under the roof is not covered up with flashing.