Caulking Where Siding Meets Concrete

Applying concrete caulk is easy with just a few simple tips and tricks to get you started.

Caulking where siding meets concrete.

A polyurethane caulk works best here but silicone will also do. Flashing acts as a waterproofing layer for this type of siding and caulking will prevent the flashing from doing its job. 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.

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. There s a gap along the bottom edge of the siding where it meets the cement foundation about 4 off the ground. But urethane squirt foam is subject to uv degrada. Mostly what kent said.

Good for gutters siding and concrete. 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. It works perfectly as a concrete expansion joint sealant. In other words caulking is applied where moisture would otherwise penetrate and cause deterioration.

Concrete caulk this type of caulk should be used where concrete slabs meet or where they meet with a building. I d like to seal this to make the house more airtight and keep cold air out. Concrete caulk comes in several different varieties. Best for use with aluminum metal concrete mortar plastics rubber stone vinyl and exterior wood.

If you use sashco s acrylic latex caulking sealant you can have any interior or exterior as good as new. Caulking is a sealant that fills gaps cracks nail holes and similar imperfections on the surface. I have a cement slab foundation and shiplap board siding attached diagonally. 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.

The best exterior caulk for roofing construction and repairs since it can withstand extreme temperatures and creates a strong insulating and water tight seal. Use a smooth even motion filling the crack flush with the surface beveling it if it s against the house. 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. Snip the opening of the tube at a 30 degree angle making the opening the same size as your gap.

It depends on the exact situation.