Good for gutters siding and concrete.
Caulking where siding meets concrete.
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.
It works perfectly as a concrete expansion joint sealant.
Concrete caulk comes in several different varieties.
If you use sashco s acrylic latex caulking sealant you can have any interior or exterior as good as new.
Mostly what kent said.
Fill the crack with urethane caulk similar to what you would use for driveway caulk.
Caulking around windows doors eaves and trim edges gives added insurance that leaks will not occur.
Caulking this page is intended to be a supplement to your estimate document.
Urethane caulks are common but many pros prefer to use silicone caulk because it lasts longer and can be used with a variety of different materials.
Applying concrete caulk is easy with just a few simple tips and tricks to get you started.
But urethane squirt foam is subject to uv degrada.
I have a cement slab foundation and shiplap board siding attached diagonally.
Best for use with aluminum metal concrete mortar plastics rubber stone vinyl and exterior wood.
A polyurethane caulk works best here but silicone will also do.
Use a smooth even motion filling the crack flush with the surface beveling it if it s against the house.
The best exterior caulk for roofing construction and repairs since it can withstand extreme temperatures and creates a strong insulating and water tight seal.
Snip the opening of the tube at a 30 degree angle making the opening the same size as your gap.
Concrete caulk this type of caulk should be used where concrete slabs meet or where they meet with a building.
You need to have the best caulk for hardie siding to help your walls and wooden surfaces to get rid of open cracks and thin spaces between joints.
When james hardie siding products butt into wood based materials a 1 8 gap will allow for expansion and contraction of the wood based product.
Many professionals like those at james hardie also agree that you should not use caulk on fiber cement siding unless there is no metal flashing underneath.
But here the main problem is people usually don t find the right type of caulk for their works.
In other words caulking is applied where moisture would otherwise penetrate and cause deterioration.
Flashing acts as a waterproofing layer for this type of siding and caulking will prevent the flashing from doing its job.
It depends on the exact situation.
