Rooftop Tent Condensation

Hi Baker 1

have a look at foamland they sell mattress barrier acs10 which come in 2100mm width it will do the job it's no good putting blankets etc under mattress as these still get wet it need to breath under mattress and this does. Its not cheap in fact it cost an arm & a leg but better than wet gear. The warmer conditions are just the same as in cold conditions. There is also a product called Hydravent its dearer than acs10. Hope this helps.

Harvey
DBN05

hi baker 1
I have a 5 ml thick closed cell foam that I bought and lined my fibre glass bodied camper trailer with and never have any problems with moisture
it is available from clark rubber in 5 and 10 ml thickness mine has a layer of alfoil included on one side which is facing down this acts as a heat barrier in the summer time as well
there is also a product called hypervent from camec stores used by a lot of poeple
also backpacker mattress foam have been used successfully by some people and also shade cloth and EMP foam which is a closed cell product also
closed cell products don't absorb any moisture
if you google the topic

eg :: moisture under mattress
it will come up with several websites to read on the topic with remedies
hope above help
oh! and not peeing the bed also helps lol
cheers

G'day Baker1

Although we are almost on opposite sides of the continent the roof top camper scenario you describe was something I also had to over come, I solved it by laying a sheet of artificial turf under the mattress on my roof top camper.

Safe travels :

Hi Baker,

This question comes up quite regularly and its not onlt RT tents that are affected. Put condensation into the search box (top RH corner of the page) and you should be able to see the variety of solutions that others have found.

Cheers,

Val

G'day Baker,
We use common Shade Cloth works a treat, cheap too.


cheers, Tazz.

It may have something to do with the construction of the RT. I have had a Hanibal RT for some 6 years and would have had over 500 nights in it in all parts of Oz and I have never ever had a condensation problem.

Camper trailer manufacturers such as Track Trailer (TVan) and Ultimate (to name a few) sell specific under mattress liners as optional extras that I believe are meant to prevent the problem you're having.
I've not seen them in person so no idea what they are, but I'm sure if you looked into it you could source them yourself from somewhere else if not from them....or find a similar solution, maybe one already suggested in the posts above :)

Just for interest sake is the board underneath the mattress varnished?
A chap told me the reason some beds sweat is because if the wood is varnished or painted it will not breath.
Lachie

I found putting a self inflator on top of the mattress stopped any moisture under the mattress. Biggest condensation problem I had with my roof-top tent wasn't the mattress, rather condensation on the roof if I had the vents shut. Some mornings it was raining inside the tent......