Keep water out of your home and running down the roof where it belongs with appropriate use of step flashing.
Roof flashing under siding.
In this sense it seems more practical to install the siding first.
On the other hand you ll find some siding parts need to be nailed down under the roof shingles.
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.
Valley flashing protects the valleys where two roof planes meet.
This flashing is typically field fabricated from a sheet of 26 ga.
How to install step flashing under siding.
I made this video this morning and i hope it help explain the flashing wall detail where the siding meets the roof.
How to install step flashing.
Slipping sticky roof membrane under existing step flashing.
Otherwise the siding installer will need to be extra cautious.
Cement or roof caulk.
Posted march 4 2017 filed under roof installation roof repair maintenance.
Open valleys have metal flashing to protect this critical area of the roof.
Roof side flashing should be folded down over facing boards along roof lines.
Videos roofing wrb flashing siding exterior trim.
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 edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak.
The water then runs off the flashing because it can t go up the flashing as it extends up behind the siding.
While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately.
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.
Some roofing components such as the flashing are easier to install without the siding.
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.
Galvanized sheet metal bent at a 90 degree angle i e.
Roof and siding install.
Step flashing is used where a roof meets a.
Bent into an l shape.
