Start low soaking the area just above where the leak appears in the house.
How repair small roof leak.
For example soak the downhill side of a chimney first then each side then the top on both sides.
Recaulk the corner flashing if any areas have hardened caulk.
Have one person climb on the roof and spray water above the suspected leak location.
Follow damaged insulation back to the source of the roof leak.
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If a leak is difficult to find enlist a helper and go up on the roof with a garden hose.
But even a small out of the way drip in a house that seems like nothing more than an inconvenience is a major repair bill waiting to happen.
Run water on the outside with a hose.
After all it can take a while for the water to seep through your roof attic and into your living space.
Next use a utility knife to trim a new shingle to match the width of the space.
Isolate areas when you run the hose.
Roof leaks can ruin insulation become a breeding ground for black mold damage interior ceilings and walls and rot the wooden framing.
The underside of your roof may be obscured by insulation and that s actually helpful for finding the roof leak.
They can assess your roof and recommend next steps.
Once you ve noticed your roof is leaking your first move should be to get in touch with a roofing professional immediately.
Look above the ceiling leak point and scan the sheathing leading towards the peak of the roof.
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It may not be a direct line but it will always be above the ceiling leak location.
Press it lightly and drive 1 1 4 in 3 2 cm galvanized roofing nails around the patch s edges in 3 in 7 6 cm intervals.
Dig out any cracked or dry caulking that isn t properly sealing adjoining surfaces and replace with silicone caulk.