Roof Leaking By Dormer

Dormer roofs are often made of a cheaper less durable substance than the rest of the roof.

Roof leaking by dormer.

And just one rusted out nail can cause your roof to leak every time it rains. Here s a few of the defects that can cause dormers and their windows to leak. Most dormer leaks occur as the flashing deteriorates and the connection between the two roofs is weakened leading to. Items that penetrate the roof are by far the most common source of leaks.

Even though these were previously billed as solutions for the leak a new roof and new siding did not stop the leaking. Use a flashlight to ensure the flashing extends. 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. Ridge cap flashing gaskets around pipes.

Look for signs of rotting or a missing piece of siding. If you don t have an attic or just can t find the source of the leak you can check several places for problems with moisture or damage. Lack of flashing at top of trim over window. Boots the rubber seals that are around the electric service and plumbing vent pipes air vents and exhaust fan.

Look along the edge of the dormer siding where it meets the shingles. Examine the trim and siding around the dormer. Penetrations can include plumbing and roof vents chimneys dormers or anything else that projects through the roof. In fact it s rare for leaks to develop in open areas of uninterrupted shingles even on older roofs.

Check the flashing beneath the corner trims along. Roof nail leaks can happen when roof nails have been loosened slightly from high winds or have simply pulled out over time. The interior walls of the dormer were often condensated and heavy rains would lead to water damage on the lower level foyer ceiling. These nails will eventually rust.

If shingles get lifted or torn from high winds the damaged shingle exposes nails holding the shingle below it.