High Humidity in RV – How to Get Rid of Moisture?

Question: I live in a travel trailer. Found a lot of moisture under the mattress today. Small heater is on at all times. What can I do to get rid of the moisture? I do live in Tacoma,Wash.

Answer: Condensation is a common issue when the heat is running in an RV. Here are a few suggestions:

  • Open a vent or window slightly to provide some air circulation.
  • Put some Damp-Rid (or similar product) in various locations around the RV. You can buy small containers and hanging versions of this product.
  • Create some air space around the mattress. If you have a lot of bed linens covering the mattress, remove some or lift them so the mattress is not enclosed. Maybe move pillows away from the headboard to create more air space.
  • Lower the heat if possible. Turn it off when not needed.
  • Buy a dehumidifier.
  • Leave some airspace at windows. If you have shades or curtains completely shut, more condensation will accumulate. So, leave a gap at bottom of shades, open curtains where possible, etc.
  • If you have condensation issues in cabinets (especially cabinets located in slide outs), leave the cabinet doors open.

Other suggestions welcome!

Comments for Humidity

Jan 03, 2013 humidity
by: lrobles
Ended up building a frame that lifts the mattress off the flat surface. No more moisture under the mattress!

Dec 30, 2012 Try HyperVent
by: Anonymous
I have put a product called HyperVent I purchased at a marine supply place under the mattress in my Class C bunk and it has been a big improvement. It is a plastic mesh that allows air to circulate under the mattress.

Nov 19, 2012 humidity
by: lrobles
Thanks so much for the tips. Haven’t tried all, but will. Thanks again.