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It’s easy to make your own Log Jam® chink paint on site. And since mixing your own costs 1/3 less than buying premixed chink paint, it’s the money-smart choice. Simply follow the instructions below, then apply over any water-based chinking.

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Texas-Claussen-Home-1200A trip to the southwest and the beauty of the Rocky Mountains were the catalysts for our “love affair” with log homes. We knew we would not be happy until we had one! Having a construction background, I decided to build our dream log home. That was thirty-three years ago, and the rest, as they say, is history.

Love for
Log Homes

Log homes are such unique structures that working on them brings us a feeling of fulfillment and satisfaction. Nothing is more gratifying than the praise and thanks received from satisfied customers.  Walking into a log home is like receiving a big warm hug from someone you love and we feel privileged to work on them, as well as live in the one we built.

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First things first. You’ll need a supply of Log Jam® chinking, Log Builder®, or Conceal®. (Give our friendly and knowledgeable customer service folks a call. They’re happy to help you figure out colors and quantities.)

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On last week’s episode of Cabin Fever, Grizzly Bob gave us a brief history of chinking while showing Sashco’s Log Jam® being applied to Crazy Mountain Brewing Company’s offices in Edwards, CO.

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Since its introduction in 1985…

how to apply chinking log jam

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Blisters in Caulk or Chinking Above is an example of a bubble or blister in the chinking of a log home.

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First thing first, choose a good quality chinking.

Bad Chinking vs. Good Chinking (Log Jam)

Good vs Bad Chinking

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From Log Jam Data Tech

1. Install Grip Striop into the caulk well of clean, stained logs.

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New Construction

Joint Design

(Insert Joint Design photo from Data Tech)

The diagram shows the ideal type of joint design for all sealants—which allows for maximum sealant movement and favors cohesive failure (the best kind) if the movement is so than 15% of the log width. For example, with 10″ diameter logs, the chink joint should be about 1 1/2″ wide. If you choose to apply a smaller bead, expect more chinking repairs.

Ideal sealant depth is half of the joint width, but no less than 1/4″, nor more than 1/2″.

Restoration

Wood should be clean and stained, as discussed in the Fundamental Chinking Application Guidelines on page. Remove all loose mortar.

Bond-Breaker: When using Log Jam as a restoration chinking over old mortar, cover it with clear packing tape, which provides a surface Log Jam will not stick to. When movement occurs, the Log Jam will be free to stretch.

Tooling: Log Jam should be tooled to contact at least 1/2” of the bare wood surface on either side of the old mortar. This will ensure adequate adhesion.

Slab Siding

(Insert Slab siding illustration from Data Tech)

Slab siding can pose a special challenge due to the very rapid and large amount of movement it often exhibits after being installed. This movement shows up as extreme shrinkage, bowing and twisting, and can stress sealants more than logs do. To help reduce this problem, follow these additional tips with slab siding: 1. Use only dry slab siding (19% or less moisture wp-content level, verified with a moisture meter) 2. Install the siding with heavy screws, not nails.

3. If applying over TyvekTM house wrap, make sure the TyvekTM is

wrinkle free and tape over it with clear packing tape.
4. If the boards are thick enough, install Half Rod backer rod with

the round portion of the profile facing out. This will provide for the best joint design. (Refer to the graphic.)