Use enough of the roof patch to liberally cover the leaky area.
How to repair a roof leak in the winter.
The secret to caulking in winter time is to heat the sealant in the tube.
Perhaps placing tube on furnace duct so air heats pre cut tube inside of home then climb up ladder and seal area keeping the sealant warm and easily caulk able.
If a leak is difficult to find enlist a helper and go up on the roof with a garden hose.
Create an anchor board by rolling the tarp s peak end with a 2 x 4 inch board and nailing the tarp to your board with your 3 inch nails.
Let the wet areas dry and then apply the patch to the underside of the roof with a putty knife.
First look on the inside where the leak is.
There should be an additional 4 feet of tarp on every side.
Proper ventilation rain and ice shields along with installing a drip edge will help prevent this problem.
Start low soaking the area just above where the leak appears in the house.
Begin soaking low on the roof just above where the leak is visible inside the house.
Add 8 inches for the thickness of the wall studs plus drywall plus exterior siding.
This video explains how to properly use flex seal to seal a roof leak in the corner.
Sealing the shingle to the object can be accomlished with a roofing sealant available at menards lowes etc.
Measure from the inside wall to the point of the leak.
Isolate areas when you run the hose.
Then add in the width of the overhang.
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.
In the wintertime ice has no problem building up under the roof membrane shingles and gutters.
Step 5 use a caulking gun to apply caulk to seal any holes that appear in the roof.
You should be using the repair fiber in order to achieve a long lasting.
Run water over the low side of the penetration for several minutes while the helper watches for any water droplets.
For example soak the downhill side of a chimney first then each side then the top on both sides.
To stop the leak use a long handled roof rake to remove snow from your roof or blow cold air onto the area of the roof that is leaking in your attic using a box fan.