These nails will eventually rust.
Roof leaking by dormer.
If shingles get lifted or torn from high winds the damaged shingle exposes nails holding the shingle below it.
Finding the leak 1.
Most dormer leaks occur as the flashing deteriorates and the connection between the two roofs is weakened leading to.
Improperly installed or deteriorated roof to wall flashings.
Penetrations can include plumbing and roof vents chimneys dormers or anything else that projects through 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.
Items that penetrate the roof are by far the most common source of leaks.
Check the flashing beneath the corner trims along.
Even though these were previously billed as solutions for the leak a new roof and new siding did not stop the leaking.
Dormer roofs are often made of a cheaper less durable substance than the rest of the roof.
Roof nail leaks can happen when roof nails have been loosened slightly from high winds or have simply pulled out over time.
Lack of flashing at top of trim over window.
Here s a few of the defects that can cause dormers and their windows to leak.
Use a flashlight to ensure the flashing extends.
Ridge cap flashing gaskets around pipes.
And just one rusted out nail can cause your roof to leak every time it rains.
Deteriorated caulk around window roofing leak at dormer roof roof damage from falling branch or hail.
Examine the trim and siding around the dormer.
Boots the rubber seals that are around the electric service and plumbing vent pipes air vents and exhaust fan.
In fact it s rare for leaks to develop in open areas of uninterrupted shingles even on older roofs.
Look for signs of rotting or a missing piece of siding.