I would like have recommendation on what kind of material i should use to seal a gap between concrete stair and wood siding in front of front door of my house.
How to seal wood siding to concrete.
Paint works well over it.
This is messier than acrylic latex but effective.
As porous as concrete is its not even ideal that treated wood meets concrete.
Siding windows and door caulk there are a variety of caulk compounds that will create air and watertight seals around windows and doors.
We will then permanently seal the wood siding with our proprietary all natural process.
Seal small cracks and gaps in your siding under 1 4 inch wide using an acrylic latex caulk.
Which finish you choose is mostly an aesthetic choice.
But urethane squirt foam is subject to uv degrada.
Sealing wood wood surfaces such as decks sidings trim and others should also be sealed for water protection.
This is mostly because of the chance for standing water or leeching.
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.
It depends on the exact situation.
But if the joint is going to be buried behind other finish surfaces and the gap is 1 2 ish or bigger then squirt foam is a good choice.
Step 7 seal larger gaps up to 1 2 inch wide with polyurethane caulk.
Most houses in america get foam sill seal laid on top of the foundation.
That could be accomplished with perhaps metal flashing j molding dap230 caulking vinyl separation or other.
Wood meeting concrete in a damp area is never a good recipe.
We will restore your wood siding to a more natural wood finish removing toxins fungus mold and mildew that develop with moisture.
My primary concern is that using a wrong material that will rotten the wood.
It seems that they previously used cement as far as i can tell.
Simply apply this inexpensive filler into the cracks to seal.
This plastic foam product primarily works as a capillary break between the concrete and the framing.
Oil a clear finish is absorbed into the wood filling.
Permaseal is the last wood siding treatment you will need.
These include polymer silicone polymer paintable.
You need to isolate the wood itself from the concrete.
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.
Mostly what kent said.