Caulking Pressboard Siding

Pay special attention to siding located near the ground and at junctures where the siding meets other building materials.

Caulking pressboard siding.

Think of a wood home as a living thing. Siding caulk can be used on several different areas of your exterior siding to help prevent water damage and moisture buildup. I will probably have to nail through the siding into the studs and caulk the nail heads but i am determined to keep the siding for as long as possible. The thing is over time the chemical treatment in the pressure treated wood dries out and the wood contracts and literally gets a tiny bit smaller since it s not now swollen with moisture.

Brush or roll a layer of exterior primer on the flat portions of the masonite siding and use the tip of a paintbrush to work the primer into seams and crevices. In my opinion caulking between the seams in any lapped siding either horizontal or vertical is not good practice but not just because of any potential vapor barrier effect. It may be possible to perform minor repairs and improve aesthetics by caulking and painting. P addicott april 17 2018 at 5 08 pm.

The siding expands and contracts with temperature and humidity. It needs to move and breathe. Some of the most commonly caulked areas of siding include both corners and crevices as well as some butt joints and window and door trim boards. I have areas around dormer windows and where siding meets roof that have deteriorated.

Let the primer dry. 3 fit a caulking. Bottom of siding boards should not be caulked. The caulk was still perfect in the few areas i had caulked along the siding.

While paint does tend to somewhat glue these pieces together caulking them is never advised and can cause permanent damage. Next look for more subtle telltale signs of deterioration problems such as discoloration rusted nails. The last roofer said he could not find any hard board or fiber. However once water has penetrated hardboard siding and deterioration has begun the siding will eventually need to be replaced.

Trim the tip of the tube of caulk with a utility knife or razor blade. If your pressboard siding is not showing severe signs of problems but does have a few indications of water penetration slight discoloration rusted nails etc the process of deterioration can sometimes be slowed by the regular application of paint and or caulk. Water is meant to exit through the bottom of each board.