Even though these were previously billed as solutions for the leak a new roof and new siding did not stop the leaking.
Leaking roof around dormer.
Roofing leak at dormer roof.
3 deteriorated caulk around window and sill.
Fix walls and dormers water doesn t always come in at the shingled surface.
When inspecting your roof look for step flashing that has shifted as this could leave areas exposed.
Improperly installed or deteriorated roof to wall flashings.
Use the putty knife to remove all the caulking around the dormer.
Most dormer leaks occur as the flashing deteriorates and the connection between the two roofs is weakened leading to leaks which may cause mould stains and damage within the walls of the house.
2 lack of flashing at top of trim over window.
1 improperly installed or deteriorated roof to wall or roof to roof valley flashings at top back of dormer.
Check for power lines or electrical wires attached to your roof near the dormer.
The interior walls of the dormer were often condensated and heavy rains would lead to water damage on the lower level foyer ceiling.
Here s a few of the defects that can cause dormers and their windows to leak.
Deteriorated caulk around window.
Rotten or missing trim or siding can allow water to leak behind flashing and into your roof.
Here s a few of the defects that can cause dormers and their windows to leak.
Lack of flashing at top of trim over window.
Worn out flashing or missing sealant can also cause roof leaks around dormers.
The heavy snows and ice of winter 2013 14 compounded the problem when ice damming on the roof backed up into the dormer and poured through to the foyer ceiling creating the situation shown above.
Often wind driven rain comes in from above the roof especially around windows between corner boards and siding and through cracks and knotholes in siding.
Dormer leaks can be caused from a number of issues.