Caulking Old Wood Siding

Placing caulk over large portions of wood siding prohibits the natural movement of the wooden panels and can cause extensive damage to the exterior.

Caulking old wood siding.

Dap alex plus 12 pack 10 1 oz white paintable latex caulk. Sometimes the old caulk in the siding joint is cracked and you need to cut the old caulk out with a razor knife. When it comes to wood or wood based materials like hardboard primer sticks better than caulk and provides a great adhesion surface for caulk. But if done incorrectly it can lend a sloppy amateurish look.

Item 157140 model 11532. So if caulking is part of a painting project it s best to prime before you caulk. Work the primer into gaps but don t try to fill them with primer. It is generally not a good idea to use caulking on wood siding.

As homeowners with this kind of siding know wood naturally expands and contracts with fluctuations in temperature and precipitation. Trim boards that sit on top the siding. Caulking windows to give them a finished look inside and out and seal out leaks and drafts is a fairly common diy task. If the siding joint is so tight that the caulk only bridges the gap it may split again.