How To Install Roof Flashing Against Wood Siding

Install the first course of shingles.

How to install roof flashing against wood siding. Begin at either end of the wall and set the level middle section of the z flashing onto the top edge of the siding panel with the wider flange upward and against the wall framing. Flush the end of the flashing length with the wall corner and secure the flashing to the framing with an 8d nail at each wall. That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above. Step flashing is used to provide a water tight connection where roofing adjoins a vertical juncture.

Posted march 4 2017 filed under roof installation roof repair maintenance. Bent into an l shape. I m afraid that with time that rain is going to find its way between the roof and the wall and. I had a contractor build a shed roof on the back side of my carport that extended over and attached to the house.

However the principles are the s. This flashing is typically field fabricated from a sheet of 26 ga. Galvanized sheet metal bent at a 90 degree angle i e. When he shingled the new roof he just used roofing caulk where the shingles meet the wall no flashing of any kind.

Install the first length of z flashing. They extend the course 3 8 1 2 inch past the starter course then nail in place then install step flashing then the next course and so on up the roof. On a wall to be covered with wood cement board vinyl or metal siding the step flashing and associated roofing must be installed first so the siding can cover the top of the step flashing on. 8 install filler strips on the tin roof 1 2 inch above the filler.

Even if the roof has been properly flashed against the sidewall this one hasn t water can still run down the side of the house and behind the siding causing rot. A key part of my approach is using a special piece of flashing at this. The solution to rotting sidewalls is a small piece of bent metal called a kickout flashing at roofing suppliers which simply directs all that water away from the wall. To install the roof wall flashing above the builder bent the top edge of the flashing into a 90 degree lip about 2 cm in width.

Unless you re careful step flashing can allow water from the roof to slip behind the gutter and get behind the siding and even the housewrap. A common problem area is the point where a gutter dies into an adjoining wall as the photo below illustrates. Here silva and the apprentices are installing architectural shingles. Each flashing job is a little bit different and depends on the type of material that the exterior of your house is made of.

The exterior of a house presents plenty of opportunity for leaks. The remaining siding on the sidewall will overlap the step flashing and nail.