Settling jacks in log homes 1

[DPAJR]

I have a question about the use of settling jacks in a log home. One contractor is saying you need to adjust the jacks about every three months for the first few years. Another contractor says you can wait until the shrinkage of the logs is completed and then settle the jacks.

Is waiting until the settling is complete to adjust the jacks likely to cause structural damage?

Does anyone know about any written standards or instructions about how often to adjust the jacks?

Thanks,
Dave Adkins

 

[dicksewerrat]

Call three different log home builders. You should get a leat two answers. But I would adjust when the doors start to bind and probably for 3-5 years.

Richard A. Cornelius, P.E.

http://WWW.amlinereast.com

 

[msquared48]

With the presence of windows, doors, lofts, and the integrity of the roof itself, I would use te 3 mo recommendation for the first year then 6 mo after that, keeping records of the amount of adjustment made so you can know when enough is enough.

If you are getting settlements in the order of 1/2" in 3 months, I would stay with the 3 mo scenario until the rate drops to 1/4", then increase to 6 months.

Make sure access to the jacks is unobstructed with sufficient clearance for the use of the jacking tools.

Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask

 

[msquared48]

Don't forget, at the same time you adjust the leveling jacks, to tighten the wall thru-rods, if present. Then, recheck the leveling jacks and re-adjust if necessary.

I would expect 4 to 8" of settling for a two-story structure.

Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask