Roof Leaking By Dormer

Penetrations can include plumbing and roof vents chimneys dormers or anything else that projects through the roof.

Roof leaking by dormer.

In fact it s rare for leaks to develop in open areas of uninterrupted shingles even on older roofs. Even though these were previously billed as solutions for the leak a new roof and new siding did not stop the leaking. Lack of flashing at top of trim over window. Use a flashlight to ensure the flashing extends.

Check the flashing beneath the corner trims along. If shingles get lifted or torn from high winds the damaged shingle exposes nails holding the shingle below it. Items that penetrate the roof are by far the most common source of leaks. These nails will eventually rust.

And just one rusted out nail can cause your roof to leak every time it rains. Improperly installed or deteriorated roof to wall flashings. Look along the edge of the dormer siding where it meets the shingles. Deteriorated caulk around window roofing leak at dormer roof roof damage from falling branch or hail.

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. Look for signs of rotting or a missing piece of siding. Examine the trim and siding around the dormer. 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.

Finding the leak 1. Here s a few of the defects that can cause dormers and their windows to leak. Dormer roofs are often made of a cheaper less durable substance than the rest of 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.

Most dormer leaks occur as the flashing deteriorates and the connection between the two roofs is weakened leading to.