Roof Shingles Against Wall

The correct installation of flashing at this juncture is critical in order to maintain a weather tight seal.

Roof shingles against wall.

Galvanized sheet metal bent at a 90 degree angle i e. Snap a horizontal chalk line about shingle height on the side walls where the roof intersections slope. Posted march 4 2017 filed under roof installation roof repair maintenance. Damaged or improperly installed roof flashing especially around the chimney or dormer is one of the most common causes of roof leaks.

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. 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. 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. The flat roofing material must go up the wall a minimum of 12 or up the wall and over the top of the wall if the wall is less than 12 high.

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. This flashing is typically field fabricated from a sheet of 26 ga. Drive two type 316 stainless steel nails through the shingle and into the wall with a hammer. Keep the nails as close to the edges of the flashing as possible.

Flashing is installed to surround roof features such as vents. This how to video explores proper roof flashing installation for shingle roofing applications. Step 8 nail the flashing into place using galvanized roofing nails. Step flashing is used to provide a water tight connection where roofing adjoins a vertical juncture.

Cut the bottom to that angle and nail the shingle in place butted up against the edge of the front wall shingle. Bent into an l shape. Place one shingle against the wall with the wider bottom edge aligned with the bottom edge of the wall.