While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately.
Roof flashing under siding.
The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak.
Otherwise the siding installer will need to be extra cautious.
Keep water out of your home and running down the roof where it belongs with appropriate use of step flashing.
Valley flashing protects the valleys where two roof planes meet.
Take the first flashing piece at roof bottom and slice it at around 4 inches with tin snips.
Open valleys have metal flashing to protect this critical area of the roof.
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 water then runs off the flashing because it can t go up the flashing as it extends up behind the siding.
Cement or roof caulk.
With the flashing in place let s see what happens.
The water runs down the siding and at the bottom of the first row of vinyl siding it drips off and contacts the metal flashing as it runs across the top of the fascia board.
Roof and siding install.
Bent into an l shape.
Posted march 4 2017 filed under roof installation roof repair maintenance.
Roof side flashing should be folded down over facing boards along roof lines.
Step flashing is used where a roof meets a.
Some roofing components such as the flashing are easier to install without the siding.
Galvanized sheet metal bent at a 90 degree angle i e.
This w shaped channel is placed over the top of building felt before the roof.
How to install step flashing.
Drip edge metal valley flashing dormer chimney and kickout flashing are types of roof flashing that shed water away from the connections between roofs walls chimneys and other building assemblies.
The flashing s vertical edge is usually tucked under siding or capped with a second counter flashing that is mortared into the chimney or caulked along a skylight so water can t sneak in behind it.
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.
In this sense it seems more practical to install the siding first.
Videos roofing wrb flashing siding exterior trim.
On the other hand you ll find some siding parts need to be nailed down under the roof shingles.
This flashing is typically field fabricated from a sheet of 26 ga.
How to install step flashing under siding.
