Roof Shingles Against Wall

Step flashing is used to provide a water tight connection where roofing adjoins a vertical juncture.

Roof shingles against wall.

The correct installation of flashing at this juncture is critical in order to maintain a weather tight seal. Flashing is installed to surround roof features such as vents. And in our experience when a single piece of flashing extends only a few inches under the shingles especially on a long roof slope and worse on a roof that happens to slope slightly towards rather than away from the abutting vertical building wall the accumulated roof drainage water near the bottom end of the roof wall intersection will overwhelm the width of the flashing and because it. It is not uncommon especially in two story and side split houses to have a roof that butts against a wall as shown in figure 1.

This how to video explores proper roof flashing installation for shingle roofing applications. Here is an attempt though maybe not a very good one to make the roof flashing serve also as a through the wall flashing with a tile roof. Step 8 nail the flashing into place using galvanized roofing nails. Cut the bottom to that angle and nail the shingle in place butted up against the edge of the front wall shingle.

Place one shingle against the wall with the wider bottom edge aligned with the bottom edge of the wall. If there were no flashing against these walls water could slowly drip into the crevice between the wall and the roof and potentially into the home. How to install roof flashing against a wall. Damaged or improperly installed roof flashing especially around the chimney or dormer is one of the most common causes of roof leaks.

Keep the nails as close to the edges of the flashing as possible. Drive two type 316 stainless steel nails through the shingle and into the wall with a hammer. This flashing is typically field fabricated from a sheet of 26 ga. Posted march 4 2017 filed under roof installation roof repair maintenance.

The wall portion of the flashing should be flush against the exterior wall and the shingle portion of the flashing should be on top of the porch roof shingles. Galvanized sheet metal bent at a 90 degree angle i e. Set the top of a shingle level with this line and mark the bottom for the angle of the roof.