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Old 04-05-2013, 11:26 PM   #1
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Ventilation under your mattress

I am wondering what others have under your mattress on board for ventilation to prevent moisture accumulation. I've seen some wooden slats, plastic like fabric in rolls and would like to hear and see what others are using. We are getting new v-berth cushions made and want to address the ventilation issue at the same tme to avoid mildew up here in the PNW.

Keith
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Old 04-05-2013, 11:43 PM   #2
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Our bed is over the aft water tanks, so without attention, things could get damp. I put a slab of 2" blue styrofoam down on top of the tanks years ago and have never looked back. The mattress is totally dry and we also get less noise from the tanks when they are getting low.

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Old 04-05-2013, 11:47 PM   #3
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We have mattresses made by Boat Beds. They have some kind of plasticy (or at least non-mattressy) bottom. We have nothing else under them.
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Old 04-05-2013, 11:52 PM   #4
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Keith, we use a roll fabric that lines the area where the mattress lies. it's a support material that creates an air pocket below the mattress. I can get you the specs (they're at the office).
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Old 04-06-2013, 12:08 AM   #5
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We use Hypervent. A woven plastic fiber. Great stuff, we got ours from Fisheries Supply. Comes on a big roll, you cut off what you want (in the store, don't know how it works mail order).
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Old 04-06-2013, 12:41 AM   #6
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I've used industrial pre-filter filter media. The polyester stuff, not the fiberglass. Cheap. Looks very similar to the hypervent stuff without the backing
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Old 04-06-2013, 01:19 AM   #7
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Quote:
Originally Posted by Marin View Post
We use Hypervent. A woven plastic fiber. Great stuff, we got ours from Fisheries Supply. Comes on a big roll, you cut off what you want (in the store, don't know how it works mail order).
Hey- thats the stuff we use!
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Old 04-06-2013, 09:30 AM   #8
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Another vote for hypervent. We've used it on several boats, and it works very well. Just cut to fit.
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Old 04-06-2013, 10:02 AM   #9
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Great! We were at Fisheries yesterday and almost bought some hypervent. Next week I will go there before we head up to Anacortes and buy some.

Keith
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Old 04-06-2013, 11:11 AM   #10
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We took off the doors as they restricted access to the area under the bed where our doze. of pair of shoes are as the quilt hangs down. My wifes doctor recommend the head of the bed be elevated 4 to 6 inch to help her breathing so there is a gap around the bed. So moisture can not get trapped.
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Old 04-06-2013, 11:14 AM   #11
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Quote:
Originally Posted by Marin View Post
We use Hypervent. A woven plastic fiber. Great stuff, we got ours from Fisheries Supply. Comes on a big roll, you cut off what you want (in the store, don't know how it works mail order).
Us too! Great stuff.
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Old 04-06-2013, 11:33 AM   #12
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The surface under our matresses is made of mahogany planks with 1 cm gaps between them. Below bunks there are drawers and large open area for storage that is open to the bilge area, even the drawers are made so that they are constantly ventilated. No problems so far, air is circulating and all is dry.
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Old 01-05-2015, 11:00 AM   #13
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Installed the much recommended HyperVent under mattresses last weekend. Due to its obvious value, I also now fully recommend it.

Order through:

Website - HyperVent Marine - Putting An End To Condensation

Email - 'hypervent_info@comcast.net'

Phone - 360 657 5503

Ask for Rex. Tell him Art with Tollycraft tri cabin sent ya. He’s great guy to work with. I have no affiliation with Rex or HyperVent… just helping to spread news on what I feel is a good, useful marine product.

Happy Condensation-Evaporation Daze! – Art
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Old 01-05-2015, 11:19 AM   #14
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tiki,
European boats are better engineered than US boats. My Albin 25 was clear evidence of that. US built boats are good on blitz and pazaz but short on practical and down the road issues.
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Old 01-05-2015, 11:39 AM   #15
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Don't know if it's because Sømarken is an European boat - but we have a wooden "Lattenrost" / slatted frame (?) under each mattress, like at home ...


best regards / med venlig hilsen
wadden
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