This can allow pooling near the edge of your roof and can lead to water leaking into the eave areas of your house and down into your walls.
Leaking in houae from edge of roof.
Attic condensation is a prime example.
It can also make the underside of the roof sheathing look wet.
Flashing needs to be properly sealed to protect against water intrusion.
For example soak the downhill side of a chimney first then each side then the top on both sides.
If the leak isn t obvious have a helper watch in the attic while you get on the roof with a garden hose.
If you have a lean to extension that the water from main roof on your house is discharged onto there is a significant chance of this roof leaking.
Looking for roof leaks on the outside of your house.
Clogged gutter leaks when your gutters are clogged water is not able to flow away from the edge of the roof.
Rotten or missing trim or siding can allow water to leak behind flashing and into your roof.
Both have exposed ends of the roofing material and contain flashings as a transition to the adjacent building component.
If a leak is difficult to find enlist a helper and go up on the roof with a garden hose.
Flashing are thin strips of metal installed at danger points for leaks around a roof.
Especially during heavy rain.
To find the source of a roof leak.
Worn out flashing or missing sealant can also cause roof leaks around dormers.
The tiles and underlay will be unable to cope with such large volumes of water over a prolonged period of time and will eventually cave under the pressure causing a leak.
Don t go crazy with the water.
Be sure to start small.
Start low soaking the area just above where the leak appears in the house.
Sometimes you think you have a roof leak when in fact the roof is fine.
Speaking of chimneys compromised flashing is a common problem on a roof.
If you don t want to wait for rain to look for the leak try bringing the garden hose up on the roof.
Run the water over the place where you think the leak might be located.
Cut out the damaged section with a circular saw.
Any damaged plywood should be replaced.
Look in the attic with a flashlight for evidence like water stains trhen trace them up the roof and rafters to the entry point.
High humidity can cause condensation and rain to fall in your attic.
Isolate areas when you run the hose.
For a chimney they are bent at a 90 degree angle to attach to both the roofing material and the brick chimney.
Step by step how to repair a roof edge finding the damage.
The two areas where a roof is most likely to start leaking are at roof penetrations and the outside edges.