My name's Kel.
Hi Kel; thanks for writing:
Is there any sign of water intrusion around the area that's bubbled up?
Is the area that's bubbled up right over a pier that supports a major structural element like a column?
Is the rest of the cabin in good shape?
Meaning the floors are level?
Very good shape. It is almost new and of generally very high quality. The entire structure was engineered for high snow loads--we sometimes see 15-20' of snow--so all 12-in-12 pitch roofs, extra strong foundation, etc. It was all built strictly to code, and passed all inspections when built in 2005. It was carefully inspected by our insurance company as recently as last Summer, due to very deep snow Winter-before-last. No damage, no cracks, no anomalies.
There're are no significant cracks in the foundation?
Have there been any earthquakes in the area?
Again, no. None.
The bubble in the floor does not relate to uneven, sloping or buckled floors. It is clearly filled with only air, can be pressed back down smooth and level. Then it pops back up when you get off it!