Caulking Lap Siding

Caulk is by necessity a sticky gooey substance and as such it smudges easily.

Caulking lap siding.

It is generally not a good idea to use caulking on wood siding. Is the old caulking removed before new coats are applied. How to caulk the window trim on lap siding. When deciding how to use caulk on your siding however it is generally more important to consider where you should not use it.

The nails holding up the siding should not be caulked. In this instructional video we demonstrate how to use proper caulk techniques on lp smartside products pre finished with diamond kote which recommends dap. If overused or incorrectly placed siding caulk can cause more damage to your exterior than good. Think of a wood home as a living thing.

Caulk by its adhesive nature will try to limit this movement leading to widespread failure and cracking in the caulk over time. And many homeowners over caulk applying caulk where it doesn t belong and potentially compromising the performance of their siding. A diyer or a novice painter might attempt to achieve a cleaner look by caulking the siding nails but the nail is guaranteed to push the caulking material out within a few months. 152 4 mm wide 1 in.

The siding expands and contracts with temperature and humidity. Joint flashing butt joint horizontal lap treatment june 2014 james hardie does not recommend caulking butt joints or the horizontal overlaps joint flashing 6 in. Whether you are repainting replacing a window or replacing the siding on your house the caulking around the window trim is a very important element. Similar to paint previous coats of.

Caulking around windows doors eaves and trim edges gives added insurance that leaks will not occur. It needs to move and breathe. Caulking your home s siding is a simple process but not necessarily a foolproof one. 25 4 mm on overlap no caulk figure 1.