Galvanized sheet metal bent at a 90 degree angle i e.
Flashing roof to existing siding.
I need ideas on how to sufficiently waterproof where the addition s roof attaches to the house siding.
Bent into an l shape.
Step flashing is used to provide a water tight connection where roofing adjoins a vertical juncture.
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.
The house is sided with t1 11 4 inch oc.
Lay a shingle over the step flashing starting at the roof edge.
Step flashing is needed whether a contractor installs new roofing or re roofs over existing shingles.
The addition will have t1 11 siding and a small composite shingle roof.
A common problem area is the point where a gutter dies into an adjoining wall as the photo below illustrates.
On re roofs the sad case is that contractors do not always take the time to retrofit step flashing because it slows them down adds cost and additional carpentry work to repair or replace siding.
Fasten that shingle with two galvanized nails at the top then cover the top of it with another piece of step flashing nailed to.
To tie the roof into the siding the tin roofing panels must first be installed to.
The exterior of a house presents plenty of opportunity for leaks.
On lean to roofs where a sloping roof plane meets the siding endwall flashing is necessary to prevent leaks.
I really don t want to have to cut the existing siding.
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.
A key part of my approach is using a special piece of flashing at this.
A common problem with cement board siding products and some other types of horizontal lap siding is that older installation guidelines called for caulking the joint instead of flashing the joint.
Water will run more smoothly across the flashing and be pushed farther away from your home helping you avoid excess moisture that can damage your siding.
The increased distance between your home and the flashing itself makes t shaped flashing a better overall choice when you re going to install flashing on an existing roof.
This has proven problematic over time as caulking the joint results in unsightly surface appearances due to the different textures as well as resulted.
