Chinking & Caulking

Chinking between the logs can be part of a log building’s design, both for practical purposes and for aesthetics. For other buildings, chinking becomes necessary over time. Logs can shrink and shift creating gaps that allow air and water to leak in between the logs.

The purpose of chink is:

  • To fill the gaps between the logs
  • To fill gaps between the logs and windows, doors, foundations, roof lines and other areas
  • To prevent air and water from making its way into the log building or cabin
  • To prevent critters (bats, bees and mice) from making your log home their home

What’s the difference between chink and caulk?

Both rely on latex polymers for adhesion. Chink has fine sand particles added to it where caulk doesn’t. The sand gives the chink a dull or “flat” appearance. Just like aggregate adds strength to a concrete slab - the sand adds strength to the chinking material.

The Solution

Chinking is installed with either a bulk loading caulk gun or an electric powered chink pump. Once a line of chinking is laid, trowels are used, along with other methods, to push the chinking in and make a seal between the log surfaces – top and bottom. It takes experience and the right tools to smooth the lines so they look uniform.

Chinking can be used in lines that are from a half-inch to six inches or more wide. When the line is less than a half-inch in width, caulk is a usually a better choice. Edmunds & Company uses Perma-Chink brand chink as our preferred chinking and Big Stretch by Sashco as our preferred caulking because over the years, these two products have performed the best and are most cost effective.

Foam backer rod may be necessary before laying down the line of chinking. This insulates the line as well as breaks the bond in the center of the line, allowing for more flexibility of the chinking material.

Chinking comes in about eight different colors – from white to a rich grey (like mortar) and from light tan to dark brown. The choice of color is mainly a personal choice of the homeowner. In general, if the logs are small and there will be many chink lines in between them, it is best to stick to a color of chinking that best matches the stain color on the logs.

Let Edmunds & Company put their experience to work on your log home.

Contact us to find out how we do it or call our toll free number 715-373-5744.