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  1. Polyethylene plastic
    A concrete vapor barrier is a sheet of polyethylene plastic (Visqueen) placed directly on top of the sub-grade before a concrete floor is poured to keep moisture from passing up through the concrete.

    Concrete Vapor Barrier - What Is A Vapor Barrier And Do I Need …

    www.everything-about-concrete.com/concrete-vapor-barrier.html
    www.everything-about-concrete.com/concrete-vapor-barrier.html
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  2. 其他用户还问了以下问题
    Do I need a vapor barrier for a concrete slab?
    Pro Tip: If consistent, continuous pressure will not be applied (e.g. by a concrete slab), Stego Term Bar may be necessary. The purpose of a high-performance vapor barrier is to stop water vapor and other soil gases from migrating into the concrete slab and building interior.

    How to Successfully Install an Under-Slab Vapor Barrier + Checklist

    stegoindustries.com
    Can underslab vapor barriers control water vapor through concrete slabs?
    Thank you! Uncontrolled water vapor through concrete slabs has cost building owners, designers and contractors billions of dollars. The use of underslab vapor barriers is the best method and most economical solution for controlling water vapor migration through concrete slabs.

    Concrete Vapor Barriers - W. R. Meadows

    wrmeadows.com
    Does a vapor barrier under a concrete slab aggravate plastic shrinkage cracking?
    ACI 302 also says that a va- por barrier directly under a concrete slab aggravates plastic shrinkage cracking (Ref. 1). The PCA tests did show that when a concrete slab was placed directly over a vapor barrier, instead of over a sand layer, water flow from the concrete was greater at early ages (Ref. 2).

    Vapor barriers under concrete slabs

    vaporsafe.com
    Why do concrete slabs evaporate more when placed over a vapor barrier?
    The PCA tests did show that when a concrete slab was placed directly over a vapor barrier, instead of over a sand layer, water flow from the concrete was greater at early ages (Ref. 2). The researchers believed this was due to more evaporation of the mix water.

    Vapor barriers under concrete slabs

    vaporsafe.com
    What is the best vapor barrier for concrete floors?
    Polyethylene is the best vapor barrier for concrete floors. It’s durable, effective, and available in various thicknesses. Concrete slabs can last well over 20 years without problems when homeowners use a polyethylene barrier. You can also use asphalt-coated paper, foil-faced bubble wrap, and other materials.

    Vapor Barriers and Concrete: Everything You Want To Know - Attainabl…

    attainablehome.com
    Should I use a vapor barrier?
    Bottom line: If you want to make sure your slab on ground gets dry and stays dry, use a vapor barrier. Cure with waterproof sheets rather than with water or curing compounds. All vapor barriers should conform to ASTM E-1745; but consider going with a barrier that has water vapor permeance less than 0.3 perms.

    Concrete Vapor Barriers for Under Slabs - Concrete Network

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  3. Concrete Network
    https://www.concretenetwork.com/vapor-barriers

    Concrete Vapor Barriers for Under Slabs - Concrete Network

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    • Concrete Network
      https://www.concretenetwork.com/vap…

      How to Install a Concrete Vapor Barrier - Under Slab …

      How to install a vapor barrier before pouring a concrete slab, so that vapor transmission will not occur. Place the barrier on top of the subbase, directly benath the concrete slab.

      标记:
      Vapor Barrier Under Concrete Slab
      Concrete and Cement
    • Stego Industries
      https://www.stegoindustries.com/blog/w…

      When and Where to Install a Below-Slab Vapor Barrier

      2023年8月14日 · A below-slab vapor barrier has a permeance rating of less than 0.01 perms to provide exceptional protection against water vapor diffusion. Making sure that vapor barrier meets ASTM E1745 Class A is important as well.

      标记:
      Vapor
      Barrier
    • Stego Industries
      https://www.stegoindustries.com/blog/how-to...

      How to Successfully Install an Under-Slab Vapor Barrier + Checklist

      标记:
      Concrete Vapor Barrier
      How-to
    • Professional Builder
      https://www.probuilder.com/quality-matters-under...

      Concrete Foundations: Under-Slab Vapor Barriers Done Right

      标记:
      Concrete Vapor Barriers
      Concrete and Cement
      Moisture Barrier Under Concrete Slab

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      Concrete Foundations: Under-Slab Vapor Barriers Done Right
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      Concrete Vapor & Gas Barriers: Leading-Edge Critical Building ...
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      The Best Moisture Barrier for Protecting Concrete Slabs and Floors - gb&d
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      Concrete Foundations: Under-Slab Vapor Barriers Done Right
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      Creating A Moisture Vapor Barrier Under Concrete Slab, 46% OFF
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      Vapour Barrier Under Concrete Slab - Building Repairs and Maintenance ...
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    • Attainable Home
      https://www.attainablehome.com/vapor …

      Vapor Barriers and Concrete: Everything You Want To …

      2024年1月11日 · You need a vapor barrier under your concrete slab to protect it from moisture damage. This application can be the difference between a durable, long-lasting concrete patio and one that cracks and crumbles in …

      标记:
      Concrete Vapor Barriers
      Vapor Barrier Under Concrete Slab
    • vaporsafe.com
      http://vaporsafe.com/library/vaporbarriersunderconcreteslabs.pdf
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      Vapor barriers under concrete slabs

      标记:
      Concrete Vapor Barriers
      Vapor Barrier Under Concrete Slab
    • W. R. Meadows
      https://www.wrmeadows.com/concrete-…

      Concrete Vapor Barriers - W. R. Meadows

      How an Underslab Vapor Barrier Delivers the Best in Building Protection. Known as the best method as well as the most economical solution for controlling water vapor migration through concrete slabs, W. R. MEADOWS meets the two …

      标记:
      Concrete Vapor Barriers
      Underslab Vapor Barrier
    • Americover
      https://www.americover.com/blog/unde…

      Creating a Moisture & Vapor Barrier Under Concrete …

      When you properly install an under-slab vapor barrier beneath a concrete slab, you can prevent moisture related issues such as mold and mildew, delamination in the overlay or sealer, joint failure, spalling, cracking, and deterioration.

      标记:
      Vapor Barrier Under Concrete Slab
      Concrete and Cement
    • Stego Industries
      https://www.stegoindustries.com/blog/th…

      The 5-Step Guide to Installing a Residential Below-Slab …

      2021年4月26日 · The purpose of the high-performance vapor barrier is to stop soil vapor from migrating into the concrete slab and home’s envelope over time. Roll out the vapor barrier to cover the entire floor slab placement area.

      标记:
      Concrete Vapor Barrier
      Guide