It may take some time for the water to appear but if it appears during or after a rain the roof is the place to look for the source.
I ve got a leak in my roof.
In addition roofing system leaks will make themselves known through other symptoms.
The leaking occurs during or shortly after a rainfall.
If the leak isn t obvious have a helper watch in the attic while you get on the roof with a garden hose.
Contain the leak if you find water dripping from a bulges or discoloration in your ceiling it s likely that water is pooling on the other side of that bulge or dark spot.
Finding the actual spot where the roof leaks is difficult because water can enter the roof in one place and run down to another before it starts soaking into the ceiling.
Follow damaged insulation back to the source of the roof leak.
You know the roof is bad if shingles are missing or obviously damaged or when water stains the ceiling or walls.
Begin soaking low on the roof just above where the leak is visible inside the house.
The goal is to find the leak before the entire roof goes bad.
Water can soak into the roof and cause a leak.
Use enough water to mimic heavy rains.
Consider getting a gutter cover to help keep the gutters free of debris.
The underside of your roof may be obscured by insulation and that s actually helpful for finding the roof leak.
Nail pops can also occur where the a nail or multiple nails push up and out causing the shingle above to lift eventually penetrating the top shingle and causing a leak.
Run water over the low side of the penetration for several minutes while the helper watches for any water droplets.