[pct-l] condensation on inside of homemade tarptent

[elee at microsoft.com (Eric Lee (GAMES))]

Scott wrote:
>
Dew is a slightly different example, but same concept. 
>

Right, but I bet that Craig's (the orginal poster's) problem was dew
(meaning condensation on both sides of the tarp because the fabric is
colder than the surrounding air on both sides), not condensation
(meaning condensation on only the underside because the air inside is
warm and wet while the air outside is cold).  More ventilation will not
stave off dew, in fact, it actually encourages it.  The only ways to
beat dew is to either heat the fabric (maybe by having a warm body and
less ventilation) or by cutting radiative loss (by pitching under
trees).

Of course camping in drier locations (i.e. not in long grass, or by
water) will help in either case.

Eric