ROOF LEAKS – Common Culprits: #3) Vent and Plumbing Flashings
#1 Valleys
#2 Chimneys
#3 Vent and
Plumbing Flashings
#1 Valleys
#2 Chimneys
#3 Vent and
Plumbing Flashings
Generally Plumbing Pipe
Flashings are made either of lead or incorporate a rubber seal around a metal
base. The rubber flashings often deteriorate long before the roof needs to be
replaced. These can be sealed temporarily but should be replaced shortly.
If you suspect a leak near a
roof attic vent (those are often the square vent hoods close to the roof peak
or ridge) check to see if they are plastic or vinyl, their life expectancy is
usually less than the roofing itself. Check all vents for cracks or debris built-up
behind the vent. Make sure the vent base flashing has a waterway cut into the
shingles which will allow the water to pass
easily around the vent. Also check to make sure that bottom half of the
flashing are exposed and actually cover the shingles.
