tent floors and moisture

8:22 a.m. on March 19, 2003 (EST)
(Guest)

so, how much moisture beneath one's thermarest is normal following a cool (0-4C) night with scattered showers?

I'm not sure if my tent floor has begun to lose its waterproofness or if all the moisture i find on the bottom of my thermarest is the normal effect of condensation. once i would have thought that cloths left on the floor of the tent would be dry in the morning but they are always damp.

thoughts and feedback?

thanks.

12:05 p.m. on March 19, 2003 (EST)
30 reviewer rep
1,240 forum posts
Happened to me when the tent was new

Firts camping trip with my new tent. Temps dropped to about 33 degrees F during the night (with no rain). I had moisture under my thermarest.

I keep remembering a statement from my "Concepts of Science class" instructor....."cold goes to warm".

7:47 p.m. on March 19, 2003 (EST)
37 reviewer rep
747 forum posts
try a thin plastic vapor barrier

Quote:

so, how much moisture beneath one's thermarest is normal following a cool (0-4C) night with scattered showers?

None in a really good tent.

A thin plastic vapor barrier will fix this problem.
Jim S

December 19, 2014
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