Got a serious condensation problem? How to line the hull and padding items inside -- no more rusty cans and easier to clean as well!

Hull Liners

Reader Tammy Swart, aboard Dos Libras, has had a problem with condensation and wetness in several of her lockers.  Damp to wet locker walls, rusting cans, peeling labels and so on.  YUCK!

On Wednesday, she posted the photo above on The Boat Galley’s Facebook page with the following note:

“I wanted to share a find with your readers.  I used a new bath mat to line the hull inside our galley cabinet. It keeps things from rattling in there, it separates the contents from the sweating wetness and mildew of the hull, is made from mildew resistant material, and has it’s own mounting suction cups.”

Great idea as it both gives more padding than the typical thin hull liners and provides better insulation.

Tammy gave me a link to this bath mat on Amazon as the one she used:

If that one is the wrong size for you, I found several other similar bath mats:

In addition to the features mentioned by Tammy — and maybe most important of all — if there still is condensation and moisture between the bath mat and the hull, it is much easier to pull out a bath mat and wash it off than the fabric hull liners that are glued to the hull (that’s what previous owners had used on Que Tal).  The mat Tammy chose — and most of the other vinyl mats — can even be thrown in a washing machine.

Got a serious condensation problem?  How to line the hull and padding items inside -- no more rusty cans and easier to clean as well!

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23 Comments
  • Carolyn Brown Fuller
    Posted at 15 January 2014 Reply

    What a clever idea!

  • Lauri Cawthon
    Posted at 15 January 2014 Reply

    I used one for the top of the counter where you stepped in from companionway- keeps a steady foot and scratches from occurring

  • Anne Ellingsen
    Posted at 15 January 2014 Reply

    Thanks for sharing. I would not have thought about that

  • Kathy Belanger-Barber
    Posted at 15 January 2014 Reply

    Awesome idea!

  • Debra Perfitt
    Posted at 16 January 2014 Reply

    Another Fab idea.

  • Lorie Eadie
    Posted at 16 January 2014 Reply

    Great idea !

  • tami
    Posted at 18 January 2014 Reply

    Dri-dek tiles would also work for this, but they’re kind of expensive. McMaster-Carr has some options which are cheaper than dri-dek
    http://www.mcmaster.com/#floor-tiles/=qaygpe

    In fact, McMaster has all sorts of goodies.

    I’ve used, under my mattresses, fiber filter material like this http://www.flandersfilters.com/wp-content/themes/flandersfilters.com/graphics/product_images/sm100s.jpg

    which, although kind of messy, do a great job of aeration/ventilation and are super cheap

  • Terri Zorn
    Posted at 09 April 2016 Reply

    That’s a great idea. 🙂

  • Edward Popka
    Posted at 09 April 2016 Reply

    I wonder if the insulation sold that sticks to the walls of engine compartments for heat and noise reduction would work as well?

    • The Boat Galley
      Posted at 10 April 2016 Reply

      I don’t know, but I do know that it’s a LOT more expensive (we had to replace it on our previous boat ).

  • Courtney Cali T
    Posted at 10 April 2016 Reply

    Russ Titus good idea!

  • Cynthia Ann Gastrich
    Posted at 10 April 2016 Reply

    I’ve tried that, but the area I have a problem with is vertical. The bath mat won’t stay in place, I don’t have a smooth surface to attach it to. Any thoughts?

    • The Boat Galley
      Posted at 10 April 2016 Reply

      Use the Reflectix. It’s a great product. Doesn’t have quite as much padding and it’s harder to remove to clean behind, but it does work well.

  • Kelly Lerigny
    Posted at 10 April 2016 Reply

    We used this product to cover the interior hull walls in the bow under our bed 2 years ago. Much warmer and drier now. No maintenance. Few dabs of adhesive holds it in place. Very inexpensive solution. http://m.reflectixinc.com/applications/diy

  • Pierre Mitham
    Posted at 10 April 2016 Reply

    When we were living aboard (Toronto) we lined the whole hull with Reflectix. Its a foil/bubblewrap insulation. glued to the hull and then covered with regular vinyl ceiling. its incredibly warm for its thickness and has the added benefit of turning your whole hull into a radar reflector!!

  • Michelle Rene
    Posted at 10 April 2016 Reply

    Some great ideas! In the photo it appears to be attached vertical, is there a glue recommended?

    • Carolyn Shearlock
      Posted at 10 April 2016 Reply

      No, just the suction cups that are on the bottom of the bath mat.

  • Verena Kellner
    Posted at 11 April 2016 Reply

    Intersting. I lined all of our lockers with outdoor carpet. If that doesn’t work I will try the bath mats.

  • Thomas Keenan
    Posted at 04 November 2017 Reply

    So let me get this straight— the added rubber mat is supposed to only act as a padding between the fiberglass and the product, correct? It doesn’t stop the condensation— it’s just a barrier, right?

    • The Boat Galley
      Posted at 05 November 2017 Reply

      Where I did something similar in one locker, it did seem to cut down the condensation by acting as extra insulation but that will depend a lot on how it sits with respect to the hull (how much of a gap, how completely it’s covered, etc.). And no, it didn’t totally stop the condensation.

  • Dave Sprygada
    Posted at 05 November 2017 Reply

    If you keep the hull liner in place it will still absorb moisture and probably mold faster because the air will not allow it to dry. I replaced the hull liner with vinyl Bead board and it is amazing how much fresher smelling it is!

  • William Maness
    Posted at 05 November 2017 Reply

    We’ve got a polyethylene mat that serves a similar purpose. The condensation drains to bilge or evaporated but clothing never contacts the wet hull.

    https://www.ravenwolfmarine.com/den-dry-locker-liner.html

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