A: Since logs naturally expand and contract during the course of a year, there is always the possibility of air infiltration. This possibility becomes even more credible if the design and building system used in the house construction is weak. Therefore, every log home should definitely incorporate caulking/chinking. If this situation was not reason enough, there are two other important reasons to caulk/chink. First, the caulking/chinking provides for an effective seal against moisture and insects. Secondly, the caulking/chinking along with the required backing rod also helps seal the air cavity at the log seam and this sealed cavity enhances the energy-efficiency of your log wall. The log home world is saturated with log home owners who were told that they would never need to caulk/chink their homes, only to find in fairly short order that the quality, maintenance and comfort of their home immeasurably benefitted from having their homes caulked or chinked.
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