I think the water is getting in via a hole where a pin big screw goes through to hold that part of the roof on.
Fix leaky garage roof.
For example if an old felt roof is covered in moss loose rock chippings and lichen remove.
Plant a ladder firmly to the ground.
Wearing a harness and safety goggles may also help in preventing injuries while you re on the roof.
For example soak the downhill side of a chimney first then each side then the top on both sides.
If it is an extendable type make sure that extensions are secured.
Then use ice melt product per manufacturer s instructions.
Prepare the roof area surrounding the leak by removing dirt debris and raised parts of the old roofing.
Instead create a screw hole using a cordless drill with a screw drill bit.
Let the wet areas dry and then apply the patch to the underside of the roof with a putty knife.
Use enough of the roof patch to liberally cover the leaky area.
Then drive a 1 inch galvanized steel screw to secure that section of the metal roof and avoid further nail loosening or rusting.
Isolate areas when you run the hose.
If a leak is difficult to find enlist a helper and go up on the roof with a garden hose.
I have a leak in my garage roof the water is coming through and slowly rotting one of the main beams.
This way the beams will not sag in the future.
Use a roof rake to fix it and remove the first four feet of snow from the roof edge.
Recaulk the corner flashing if any areas have hardened caulk.
I can t afford a professional fix and i m utterly useless at diy so advice appreciated.
Skylights can trap water and the frame seals can crack and form leaks.
How to fix a leaking roof vent pipe flexible roof sealant apply flexible roof sealant black jack roof patch rubberized roof cement from a can or tube to fill holes gaps flashing and loose shingles around vent pipe vent pipe boot overlay slide a new vent pipe boot over the old vent pipe boot caulk seal watch video below.
How to fix a leaking metal roof efficiently.
If you find trouble removing rusted screws do not attempt to remove them.
Place them beneath each beam for enhanced support.
Start low soaking the area just above where the leak appears in the house.
You can make sure that this is your last leaky garage roof by utilizing timber that is the length of the garage.
Step 5 use a caulking gun to apply caulk to seal any holes that appear in the roof.
Dig out any cracked or dry caulking that isn t properly sealing adjoining surfaces and replace with silicone caulk.