This is exactly what happened as the run off from the roof traveled behind the siding and through a layer of rigid insulation and a layer of wall sheathing.
Roof leak where siding wall meets roof line.
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.
I made this video this morning and i hope it help explain the flashing wall detail where the siding meets the roof.
Dormer leaks can be caused from a number of issues.
It appears a roof valley ends at the rainwater collector box tight against the side wall of the house.
You can crack roofing if you walk on it so be careful.
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.
Then there is the transition of the.
A roof leak at the edge of a dormer can allow a lot of water to enter your home.
Of that is the case its an unwise roof design to begin with.
If your roof is older it is possible that the leak is within the roof field.
Proper roof wall abutment flashing examples.
This means the expanse of shingles slate shakes whatever.
Each year we receive calls to help diagnose and repair siding leaks that are occurring at siding and roof intersections such as where a garage roof meets the main body of the house and has siding installed on the wall above the roof.
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.
It is not good practice to install flashing or bring the membrane up behind the vinyl siding.
Instead of a standard straight cut you must cut these pieces of siding at the same angle as the roof.
Because the wall is some kind of solid wood metal flashing should have been installed under the shingles and up the face of the wood wall into a groove in the wood.
Worn out flashing or missing sealant can also cause roof leaks around dormers.
If your roof is asphalt then you can walk around with ease.
Homes with gables at different levels on the roofs often have siding that meets the roof line.
Other materials such as slate concrete tile or clay tile may not be so forgiving.
One of the first questions we ask is have you had your home resided is the past few years.
