This is how we do it. This is how we keep out the cold, the rain, and the critters. This is how, with rubber rope called backer rod.
Technically, backer rod is "a closed cell foam material used to fill large checks and gaps between logs. It also provides support for chinking and sealants. Its primary purpose is to act as a 'bond-breaker' and promote two-point adhesion giving the joint and sealing material the ability to compress and expand as logs move." You can buy it in widths from 1/4" to 2", and we have both thick and thin on hand.
At this time of year, we find lengths of backer rod dangling from the joints all over the house, as the cold sets in and the logs contract. When the insulation pops out, Ted shoves it back in with a screwdriver or Swiss army knife, or the handle of a spoon.Not very high tech, but effective.
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Backer rod (insulation)
A closed cell foam material
used to fill large checks and gaps between logs. It also provides
support for chinking and sealants. Its primary purpose is to act as a
"bond-breaker" and promote two-point adhesion giving the joint and
sealing material the ability to compress and expand as logs move.
Available in widths from 1/4" to 2"; inexpensive, and absolutely
invaluable. Order online from Log Home Repair Improvement Store.

Things don't have to be high tech to work! This idea just makes sense vs using caulk and other caustic-type fillers. Our windows have warped over 26 years and we've had a few replaced, but it doesn't make sense to replace all. I put the sticky foam weatherstripping on the outer edge of the window where it meets the sill to keep out the cold. It works well. Thanks for sharing, Lydia.
Shirley
Posted by: Shirley @ gfe | October 1, 2012 at 04:10 PM
Shirley, so true. Our house is well-insulated, and quiet, and when it springs a leak, we can fix it ourselves with a trusty screwdriver!
Posted by: Lydia | October 1, 2012 at 04:17 PM
Very interesting!
Posted by: Kalyn | October 1, 2012 at 06:31 PM
Cool way to fix it--wow. Still warm IN St. Paul, Minnesota. Hmm.. Not complaining, you know!!! (70 today and the second driest September on record.)Tomatoes still coming on..and it's 10/1.
Posted by: Alyce Morgan | October 1, 2012 at 09:20 PM