I believe you have tar paper under your siding based on your description.
How to seal vinyl siding to concrete.
If it s safe spread it liberally in the concrete with a natural bristle paint brush.
Don t use a synthetic bristle brush the acid dissolves the bristles.
Use a small.
The vinyl siding as seen from inside the crawl space.
Maintaining good clearances between finish grade and siding materials of all kinds is crucial to preventing this kind of damage.
Add vinyl siding strips until you reach the end of the wall then measure and cut the last strip to leave 1 4 inch space at the end.
Look under the siding at the area meeting the foundation of your home for holes and gaps.
Seal the hole from the inside as well.
The grey color visible in the picture is the back side of the vinyl siding.
This article series provides details of foundation tops building walls exterior trim wall corners and roof wall intersection flashing to prevent leaks water damage.
Crawl around the exterior of your home and use a flashlight to find cracks holes and gaps.
How to seal siding to keep out mice.
Theoretically you could seal the tar paper to the foundation with foam spray caulking something similar.
Find the entrances mice use to enter your home.
It s safe for vinyl but your siding may not be 100 percent vinyl.
Let the caulk dry overnight then partially fill the boot with foam.
Test the acid solution before using it.
Use the cut off piece to start the next row of siding.
A wall or siding needs special detailing to prevent leaks and damage where the wall encounters any horizontal surface such as a foundation wall top or a concrete porch slab.