Vent flashing done right to prevent leaks back up roof vent boots with flashing counterflashing and proper shingling.
Flashing roof to sidewall.
Installing the sidewall flashing.
It s a standard l trim and we use this trim most often in a concealed or hidden fastener application.
Proper roof wall abutment flashing examples.
Continuous flashing has always been used at a headwall an intersecting wall at the top of a roof plane and perpendicular to the slope.
Epdm flashing tape with a butyl adhesive backing will.
Butyl tape should be applied where the foot of the flashing attaches to the roof.
At the end of the vertical sidewall the step flashing shall be turned out in a manner that directs water away from the wall and onto the roof and or gutter.
Even if one piece of step flashing fails the flashing and shingle below it start the.
We discuss the importance of keeping wood siding clear of the roof surface the need for flashing at the dormer side to roof intersection and the need for counter flashing at step flashing.
Apply drip edge and roof underlayment over the roof deck and continue lapping up the sidewall and over the water resistive barrier in this case rigid foam insulation a minimum of 7 inches figure 2.
Here s how to install it correctly.
Installing step flashing to prevent roof leaks step flashing spans the joint between roof shingles and an adjacent side wall.
The wall side of the flashing can either be covered over with siding or sealed with caulk.
Continuous flashing is sometimes seen where a roof meets a sidewall but in the long run step flashing will do a better job of preventing water leaks.
Except where walls are brick the vertical part of the sidewall flashing should extend up behind the exterior wall covering just like with headwalls.
Step flashing redirects the water back onto the shingle.
This article describes mistakes at roof dormer sidewall flashing and roof dormer sidewall coverings that invite leaks rot and insect damage on buildings.
Below are two photographs of roof wall step flashing completed and effective of a slate roof against a brick wall below left and in process with step flashing against a dormer sidewall before the dormer siding has been put in place below right.
How to install sidewall flashing and kick out diverters on homes with rigid foam insulation sheathing.
This is the sidewall flashing from american building components.
A sidewall is a junction between a wall and a sloped portion of a roof.
Now we can put our sidewall trim up make our marks for cutting and folding and install it.
In the 2012 irc the section that covered sidewall flashing was much expanded and for the first time it included continuous flashing as an approved method for roof to sidewall flashing with asphalt shingles.
The flashing shall be a minimum of 4 inches 102 mm high and 4 inches 102 mm wide.
