A better repair approach for the leaky dormer sides will as we ve discussed involve the following.
Roof to wall flashing leak.
Sorry to hear about your friends water leakage problems.
Wall to roof connections on pitched roofs.
Proper roof wall flashing example.
To install the roof wall flashing above the builder bent the top edge of the flashing into a 90 degree lip about 2 cm in width.
Rotten or missing trim or siding can allow water to leak behind flashing and into your roof.
The roof side of the l flashing is connected to the roof material with hot tar or some other sealant.
Some roof leaks are tough to locate.
When a roof leaks the problem is often due to leaks in and around the metal roof flashing that protects roof edges valleys and the junctions between roofing and obstructions such as chimneys dormers and vent pipes.
Old holes left over from a satellite dish or antenna mounted on your roof can be a sneaky cause of leaks.
The most common areas for water leakage are basements roofs typically around chimneys skylights and other penetrations and wall penetrations such as windows and doors.
If your ceiling has a plastic vapor barrier between the drywall and the attic insulation push the insulation aside and look for flow stains on the plastic often water runs to openings in the vapor barrier such as at ceiling light fixtures.
There have always been problems with the flashing details at head walls rake walls and chimneys especially if stucco brick or stone veneer is used.
To emphasize the importance of proper roof and deck flashing and to provide typical and enhanced flashing techniques for coastal homes.
A roof leak at the edge of a dormer can allow a lot of water to enter your home.
Sometimes the water shows up at a ceiling spot distant from the leak.
That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above.
In most cases roof and wall leaks are related to improper flashing.
Roof to wall flashing.
Remove wood shingles with care up one or two courses sufficient to install proper sidewall flashing and counter flashing.
Must be kept up off the surface of the roof a minimum 1 some manufacturers of exterior wall coverings require.
Roof to wall and deck to wall flashing www fema gov technical fact sheet no.
Dormer leaks can be caused from a number of issues.
Worn out flashing or missing sealant can also cause roof leaks around dormers.
23 roof to wall and deck to wall flashing home builder s guide to coastal construction page 1 of 3 purpose.
Reinstall new wood shingles keeping the bottom of the shingle 1 2 above the roof surface below.
Look at the flashing in all transition points where roof meets a wall or another roof plane.
All exterior wall coverings whether it is wood siding vinyl siding brick or stone veneer stucco etc.
