No matter what it encounters—wind, rain, sleet, sun or snow, Log Jam chinking effectively holds its seal. Log Jam chinking keeps your home comfortable while keeping the weather where it belongs—outside. Log Jam chinking is the elastic sealant that handles joint movement up to 100%—even in joints up to 4" wide—while maintaining its original appearance. With superior adhesion and elasticity, Log Jam chinking is guaranteed not to crack, tear or peel away from logs. Plus, it's the only chinking to hold a UL one-hour fire rating: when applied in accordance with Fire Resistance Directory Design No. UL519. 

Log Jam chinking's six textured colors seal your home with the traditional look of mortar and are available in two convenient sizes (5 gallon pails and 29 oz. cartridges).

1/4"

3/8"

1/2"

5/8"

3/4"

7/8"

1"

Example:

One full gallon is sufficient material to fill a joint 1/2" wide and 3/8" deep and 102' long.

Cartridges: When figuring feet per cartridge for a particular joint size divide lineal feet by 12.

** These color samples are only an approximation. The colors may vary substantially based on your monitor calibration. The colors may also vary substantially based on species, texture and porosity of wood, and application technique.