You nail shingles to the roof of course but each shingle has a tar strip on it that causes it to stick to the shingle that overlaps it.
How to repair a roof leak in the winter.
Add 8 inches for the thickness of the wall studs plus drywall plus exterior siding.
Start low soaking the area just above where the leak appears in the house.
If you plan to replace shingles in the winter it can be done but you have to add something to bond the shingles together.
Shine a flashlight along the underside of the roof and look for a hole in the roof as well as areas that are wet or have been.
Roof leaks are problematic at any time of the year but they re especially troublesome in the winter.
The purpose is to keep the shingle tabs down in high winds.
Measure from the inside wall to the point of the leak.
The ice builds back up when it reaches the wall line where the house is heated and it creates an interior drip.
If a leak is difficult to find enlist a helper and go up on the roof with a garden hose.
In the wintertime ice has no problem building up under the roof membrane shingles and gutters.
How to repair a leaky roof from inside the house.
Isolate areas when you run the hose.
First look on the inside where the leak is.
The roof shingles should be softened and flattened as the shingles tend to curl up in winter.
This will freeze the leaking water in place but you ll still need to deal with the ice dam or it will melt and start leaking again.
Then add in the width of the overhang.
Locate the source of the leak by examining the underside of the roof from within your attic or crawl space.
When it comes to flashing repair doing it yourself is something that is not recommended for any homeowner no matter what the season.
Make use of the flame carefully on the curled shingle edges.
Proper ventilation rain and ice shields along with installing a drip edge will help prevent this problem.
The shingles can be warmed up with a propane torch.