Results 1 to 9 of 9
  1. #1
    Senior Member traftonm's Avatar
    Join Date
    Sep 2009
    Location
    Concord NC
    Hammock
    WBBB
    Tarp
    DIY Cuben fiber
    Insulation
    DYI UQ/TQ Down
    Suspension
    whoopee sling
    Posts
    115

    Under Quilt and Top Quilt Question?

    I am planing top replace my sleeping bag with a top quilt and had a question. On out side of the quilt i was thinking of using Cuben Fiber and Sil Nylon on the inside or mabt Tefria. I was also going to redue my under quilt with the same, Cuben on the out side and Sil on the side agenst the Hammock. I know Sil does not breath, but if one sid does breath, does anyone see any problems with using the Cuben fiber?

  2. #2
    Burning at both ends Dblcorona's Avatar
    Join Date
    May 2010
    Location
    Novi, MI
    Hammock
    WBBB 1.7 DBL
    Tarp
    HG Cuben
    Insulation
    Sleeping BearTQ/UQ
    Suspension
    Straps and Slings
    Posts
    1,136
    Images
    18
    Cuben doesn't breath either. You can get some air flow through the sew holes if your sewing it. Might be kind of clammy against your skin. Tim at Enlightened Equipment makes quilts out of Cuben. Calls them vapor barrier quilts.
    http://enlightenedequipment.webs.com/epiphanyk.htm
    "We don't stop hiking because we grow old,
    we grow old because we stop hiking."

    -- Finis Mitchell,

  3. #3
    Senior Member
    Join Date
    Sep 2007
    Location
    Georgia
    Posts
    1,557
    Quote Originally Posted by Dblcorona View Post
    Cuben doesn't breath either. You can get some air flow through the sew holes if your sewing it. Might be kind of clammy against your skin. Tim at Enlightened Equipment makes quilts out of Cuben. Calls them vapor barrier quilts.
    http://enlightenedequipment.webs.com/epiphanyk.htm
    Wrapping yourself in Saran Wrap would be a lot cheaper and about as comfortable.

  4. #4

    Join Date
    Sep 2010
    Location
    Rochester, NY
    Hammock
    Hennesy
    Tarp
    various
    Insulation
    pads, foam
    Posts
    3,883
    Images
    17
    I don't see why you would do that. The same weight nylon without the silicone on the inside would weigh less. You do not want a vapor barrier there unless you are staying below 0 deg F all the time. If you are there are better answers like metalized mylar. Other than a bigger cost factor I'm not sure what the Cuben would do. Not a lot of weight in 4 sq yards of any light nylon cover. 4 yds is probably a high guess.

  5. #5
    Senior Member traftonm's Avatar
    Join Date
    Sep 2009
    Location
    Concord NC
    Hammock
    WBBB
    Tarp
    DIY Cuben fiber
    Insulation
    DYI UQ/TQ Down
    Suspension
    whoopee sling
    Posts
    115
    Quote Originally Posted by nothermark View Post
    I don't see why you would do that. The same weight nylon without the silicone on the inside would weigh less. You do not want a vapor barrier there unless you are staying below 0 deg F all the time. If you are there are better answers like metalized mylar. Other than a bigger cost factor I'm not sure what the Cuben would do. Not a lot of weight in 4 sq yards of any light nylon cover. 4 yds is probably a high guess.
    I would use uncopated on the inside, or the side agenst me. I hade some issues on my last hike with fog getting the under quilt damp.
    My thinking is,
    1. The side that is exposed to the eliments is water proof, or at least more water resestent.
    2 The side agenst me is still breathable.
    3. Amost three oz. lighter for each, top quilt and under quilt. 5.8 oz total.
    4. I'm making them myself so the extra cost is still less then if I bought one.

  6. #6
    packeagle's Avatar
    Join Date
    Apr 2010
    Location
    Saginaw, Michigan
    Hammock
    DIY Table Cloth/ Jerry 5
    Tarp
    11x12' Hex Sil
    Insulation
    Various UQ/TQ
    Suspension
    Webbing or Etrunks
    Posts
    1,202
    Images
    18
    My concern would be in the fill being sandwiched between the moisture from your body and the VB. Your body will condensate and with a VB top layer it may be trapped in the down.

  7. #7
    Knotty's Avatar
    Join Date
    Mar 2009
    Location
    Denville, NJ, USA
    Hammock
    DIY Stretch-Side
    Tarp
    DIY Cat Cut Hex
    Insulation
    Phoenix and Nest
    Suspension
    cinch buckles
    Posts
    4,448
    Images
    227
    As a general rule, vapor barriers, if used, are on the "warm" side of an insulation system. In other words, closest to your body. If you put them on the "cold" side, moisture from your body enters the insulation and then condenses as it cools getting trapped. I'd be hesitant to use a vapor barrier on even the warm side except for a system used in very cold weather.
    Knotty
    "Don't speak unless it improves the silence." -proverb
    DIY Gathered End Hammock
    DIY Stretch-Side Hammock
    Stretch-Side "Knotty Mod"
    DIY Bugnet

  8. #8
    Senior Member traftonm's Avatar
    Join Date
    Sep 2009
    Location
    Concord NC
    Hammock
    WBBB
    Tarp
    DIY Cuben fiber
    Insulation
    DYI UQ/TQ Down
    Suspension
    whoopee sling
    Posts
    115
    Quote Originally Posted by Knotty View Post
    As a general rule, vapor barriers, if used, are on the "warm" side of an insulation system. In other words, closest to your body. If you put them on the "cold" side, moisture from your body enters the insulation and then condenses as it cools getting trapped. I'd be hesitant to use a vapor barrier on even the warm side except for a system used in very cold weather.
    Thanks for a constructive answer.

  9. #9
    Senior Member angrysparrow's Avatar
    Join Date
    Apr 2007
    Location
    near Memphis, TN
    Hammock
    WB Traveler
    Tarp
    ZPacks CF
    Insulation
    Te-Wa / HG / WB
    Suspension
    Whoopie Hooks
    Posts
    9,686
    Images
    92
    If you haven't read it, this sticky thread about vapor barriers is helpful to understanding their use.
    I think that when the lies are all told and forgot the truth will be there yet. It dont move about from place to place and it dont change from time to time. You cant corrupt it any more than you can salt salt. - Cormac McCarthy

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •