Rotten or missing trim or siding can allow water to leak behind flashing and into your roof.
Roof leak near dormer.
Here s a few of the defects that can cause dormers and their windows to leak.
Short of reflashing and a new roof.
I have a small leak in a dormer on my roof where the dormer meets the roof.
The interior walls of the dormer were often condensated and heavy rains would lead to water damage on the lower level foyer ceiling.
Penetrations can include plumbing and roof vents chimneys dormers or anything else that projects through the roof.
Lack of flashing at top of trim over window.
They can be several feet above the leak or to the right or left of it.
2 lack of flashing at top of trim over window.
A roof leak at the edge of a dormer can allow a lot of water to enter your home.
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.
Dormer roof repairs require some time and a few tools but are considerably cheaper than replacing an interior wall damaged from the leak.
The main problem is at the bottom corners.
Place the legs of an extension ladder on level solid ground beneath the dormer where you expect to find the roof.
Nothing really happens unless it pours for a while.
The flashing that goes horizontally across the roof the apron flashing should extend about 4 6 inches beyond the wall of the dormer.
3 deteriorated caulk around window and sill.
I m due for a new roof within in a year but i m trying to delay spending the.
Deteriorated caulk around window.
1 improperly installed or deteriorated roof to wall or roof to roof valley flashings at top back of dormer.
Like an eighth of an inch.
Worn out flashing or missing sealant can also cause roof leaks around dormers.
Check for power lines or electrical wires attached to your roof near the dormer.
Dormer leaks can be caused from a number of issues.
Roof damage from falling branch or hail.
Here s a few of the defects that can cause dormers and their windows to leak.
In fact it s rare for leaks to develop in open areas of uninterrupted shingles even on older roofs.
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.
Would a good dose of roofing cement tar on seam be a decent short term fix.
Improperly installed or deteriorated roof to wall flashings.