Buy yourself a caulking gun learn how to mount and open a tube of caulk and go to it.
How to seal wood siding to concrete.
When sealing wood surfaces must be free of all mildew dust dirt oil soot grease and other contaminants.
Apply wood sealer with a brush roller sprayer or by dipping.
Dap230 clear makes a good water resistant caulking that can be painted and is permanently flexible.
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Tinting a standard white primer a shade or two lighter than the finish coat improves coverage.
Note that there are various types of caulk.
Theoretically you could seal the tar paper to the foundation with foam spray caulking something similar.
You need to isolate the wood itself from the concrete.
Sealants protect concrete and wood from moisture but do not stop water movement through the concrete from the outside.
Oil based stains penetrate the wood more deeply than water based.
I believe you have tar paper under your siding based on your description.
A garden pump up sprayer is the simplest method.
How to seal siding to keep out mice.
This answer is not useful.
Caulk any joint that allows this to happen.
My recommendation in this scenario would be to trim the wood siding 1 4 inch minimally or better yet 6 to 8 above the concrete area.
Then caulk all joints with a high grade 50 year paintable silicone or polyurethane product to prevent water from getting behind the siding.
When it comes to air sealing one of the areas that we rarely see done well is the joint between the foundation and the framing.
Not a vapor barrier as you say but it prevents water that makes it past the siding from getting any further into the wall.
As porous as concrete is its not even ideal that treated wood meets concrete.
Your first attempts won t come out very well messy lots of holes goop all over the concrete and the wood stiff fingers and sticky stuff all over your clothes and hands.
Use a small.
That could be accomplished with perhaps metal flashing j molding dap230 caulking vinyl separation or other suitable stop.
Crawl around the exterior of your home and use a flashlight to find cracks holes and gaps.
Look under the siding at the area meeting the foundation of your home for holes and gaps.
Since some of the siding looks like it will need re priming and painting make sure that you use a paintable type of caulk.
Cleanup is with mineral spirits.
For masonry the sealants are the go to product.
Wood meeting concrete in a damp area is never a good recipe.
Find the entrances mice use to enter your home.
One of the more interesting wood sealers is the sikkens brand rubbol siding finish.
Most houses in america get foam sill seal laid on top of the foundation.
The best solution here may be to clean up that area of all debris let it be fully dry and then apply a bead of qood quality exterior grade caulking material.
This plastic foam product primarily works as a capillary break between the concrete and the framing.
