Flashing Porch Roof To Asfault Roof

Don t mistake this condition for headwall flashing routed beneath the shingles and call it a defect.

Flashing porch roof to asfault roof.

Here s how to install it correctly. Nail the upper edges of the flashing to the roof sheathing where the shingles were removed with 6 penny. The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak. 4 inches should go up the house wall and 4 inches should go on top of the porch roof shingles.

Lay the cut flashing down at the corner over a shingle that is already in place. Position the flashing with the lower edges atop the carport roof panels along the transition. Use a metal break tool to bend the flashing according to the angle of the roof joint. While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately.

Vent flashing done right to prevent leaks back up roof vent boots with flashing counterflashing and proper shingling. 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.

The decorative trim under the roof is not covered up with flashing. Installing step flashing to prevent roof leaks step flashing spans the joint between roof shingles and an adjacent side wall. 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. Use the metal break tool to bend the flashing lengthwise in the middle according to the angle of the roof joint.

The corner cut should be facing upwards. 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. 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.