B. Sentinel 6mm Cork Underlayment Roll. 8 mm) gap is required between sections of walkway pad to. $179. BEST. Our line includes low-VOC products and self-adhered membranes composed of proprietary SBS-modified bitumen as well as vapor-permeable air barrier membranes. Heavy Duty Vapor Barrier Seam Tape for Crawl Space and Marine Use. The WallSeal™ Vapor Barrier is a durable, 12-mil thick shield crafted to ward off moisture penetration in your basement walls. A durable barrier system that saves on your bottom line. Prep Step #2 - Subbase Preparation: The concrete floor slab needs an appropriate subbase to be placed upon. When using vapor barriers for crawl spaces 6 Mil Vapor Barrier are the bare minimum thickness. When used over a concrete subfloor, ECF eliminates the need for an additional vapor barrier, saving time and money. Type 2 vapor barriers, the basic vapor barrier for ordinary conditions, are defined as having a permeance less than or equal to 60 ng/(Pa·s·m 2) of moisture passage. (may be higher, check job specifications or building codes) 4. SOPREMA’s SENTINEL line was the product of choice for this project because of its proven quality, competitive pricing and superior technical support. It doesn’t create a sealed, waterproof or moisture-proof space, and they are rarely fitted tightly against the foundation walls of a crawl space or any columns or piers under the house. Sentinel Premium Quiet Underlayment. USES: Vapor Sentinel 20-Mil Vapor Barrier is a sub-slab barrier. With a pre-attached self-sealing tape strip and plastic overlap, installation is a breeze! Suitable for wood and cement subfloors. About Us. Damage from water condensation due to water vapour. Primers; Field & Flashing Membrane Resins;. Buy from trusted and established brands like Sentinel ; The most affordable underlayment items;. Air & Vapor Barrier Laminated Boards; Air & Vapor Barriers. Apply vapor barrier seam tape. Vapor barriers come in a variety of materials, with two of the most common options being. 11% Mail-In Rebate Good Through 11/22/23. Alpha Foundations is here to provide you with a comprehensive. However, the degree by which each moves, and level of control (i. COMPOSITION: Made with the highest grade of prime, virgin, polyolefin resins, Vapor Sentinel 20-Mil Vapor Barrier is manufactured as a multi-layer plastic extrusion. 2 out of 5 Customer Rating. (Source: Sentinel Pest) In Conclusion. Sentinel XS Radon Vapor Barrier (1) Sheet Metal Protection (1) Signs of Crawl Space Issue (1) Skrim (1) Skrim- String Reinforced Polyethylene (1) Sola Wrap (1) Spill containment plan (1) Steel Banding or SolaWrap (1) Steiner Tunnel Test (1) Structural Care (1) Successful Greenhouse Venture (1) Supplemental Lighting (1) Surface. Buy from trusted and established brands like Sentinel ; The most affordable underlayment items;. Vapor Barrier 4. Sentinel XS - 5 Layer Radon and Water Vapor Barrier. underlayment for laminate flooring. The barrier has Class I and II (A and C) variants. SENTINEL® PVC Roof Systems. The downside to using a waterproofing membrane is that it's expensive. If water vapor diffuses or infiltrates into the wall cavity and finds the cool surface, moisture problems can occur. We manufacture roofing products such as industry-leading SBS-modified bitumen roofing membranes, polymeric PMMA/PMA liquid-applied membranes and synthetic single-ply PVC membranes. The hole, which is what scientists call an "ozone depleting area," reached a size of 26 million sq km on 16 September 2023. Accessories & Primers; Membranes. (68) Questions & Answers (52) Hover Image to Zoom. SENTINEL P200 HFB is reinforced with a tenacious, anti-wicking, weft-inserted polyester fabric that is encapsulated on both sides with a proprietary thermoplastic PVC. Unroll the vapor barrier and lay it over the concrete surface you wish to protect. All of these underlayment options are low density polyethylene. Accessories & Primers. ft. 059 in. Unroll and trim vapor barrier sheets. Air & Vapor Barrier Laminated Boards; Air & Vapor Barriers. 36in. Air & Vapor Barrier Laminated Boards. DRYTEK Moisture Vapor Barrier Pigment Base is to be mixed with. However, as alluded to above, the. • Do-it-all underlayment provides complete moisture and vapor protection for all flooring types in floating installations. Description Features & Benefits Technical Features. 94 / piece Size: 100sqft. 100sqft 5. 1 perm ‐Foil facing •Vapor semi-impermeable: 0. Despite my strong belief that a below-slab vapor barrier should always be located in direct contact with the slab, you should always confer with the designer and engineer of record about how to meet the unique demands of slab design with the overall construction of the building. 79. How did this project turn out? WATCH HERE: the easiest way to seal u. There are a variety of underlayment options and brands to choose from. 25 mm), 15 mils (0. In most residential applications, this will be a tamped earth subgrade or crushed rock base course, depending on local code. Thickness and installation procedures differentiate TMs from common vapor barriers. We built a home with 2 X 6 stud walls, fibreglas insulation and polyiso spray foam around vents and critical areas. The downside to using a waterproofing membrane is that it's expensive. CALI. Others may desire a warranty crafted to address a particular type of assembly or system. Email. Bestlaminate 3in1 Basic Vapor Barrier Flooring Underlayment W Overlap and Tape. Before installing the vapor barrier, prepare the surfaces properly to ensure optimal adhesion and performance. mrcrisp |. Eco Ultra Quiet Premium Acoustical Underlayment. 7 ft. Class I barriers don't allow any amount of moisture to get through. The water vapor control layer is also called a vapor retarder or vapor barrier. A vapor barrier is meant to protect your crawl space from any moisture that tries to seep through. Accessories & Primers; Membranes. Type 2 vapor barriers, the basic vapor barrier for ordinary conditions, are defined as having a permeance less than or equal to 60 ng/(Pa·s·m 2) of moisture passage. The AquaGuard WallSeal™ Vapor Barrier is a 12-mil thick premium barrier crafted to stop moisture from infiltrating your basement walls. Fasten vapor barrier to wall. •Vapor retarders are NOT vapor barriers Vapor Barriers & Retarders •Class I Vapor Retarder: < 0. Vapor Sentinel 20 mil barrier includes documented VOC diffusion ratings for BTEX, PCE, and TCE suitable for vapor intrusion projects. Stego Wrap 15-Mil Vapor Barrier is made from a proprietary blend of prime virgin resins and additives, a combination lending to great value and effectiveness in protecting the concrete slab from moisture intrusion. This video demonstrates how to install a moisture barrier over a concrete subfloor. Q. We offer complete waterproofing and coating solutions for the commercial and industrial marketplace. Conveniently sized 100 sq. Elongation, Tongue Tear, Trapezoidal Tear and Load Yield are other tests that can tell you how strong the liner is. SOPRA-TITE SENTINEL® Drip Edge. But in order to act in that role, it needs to be on the inside. For extra protection against moisture the MemBrain Continuous Air Barrier and Smart Vapor Retarder is your weapon of choice. The cost of installing vapor barriers can vary depending on your crawl space’s size, the damage’s extent, and the materials used. Vapor barriers are chosen according to their permeability and how easily. Calculate my square footage Length Width. SENTINEL® PVC Roof Systems. Crawl Space Vapor Barriers key considerations: Permeability of water vapor, tensile strength of the film, and puncture resistance. QuietWalk Laminate and Floating Wood Flooring Underlayment with Attached Vapor Barrier- Sound Reduction, Compression Resistant, Moisture Protection 3'Wx33'4"L Roll (Covers 100 sq. Crawlspace Challenges for the Southeast. plastic sheeting is a general-purpose plastic film for use in a variety of construction and DIY projects. So the boards are resistant against water, moisture and humidity, SENTINEL CEMENT FOAM BOARD is an excellent alternative to traditional wall at shower, sauna, and any wet area where waterproofing and vapor barrier is absolute necessary to protect your home from mold and mildew. The HDX 20 ft. Weekly Household Auction Terms & Conditions. Sikaflex Insulation Universal Flashing Sealant and Adhesive in Dark Bronze. SENTINEL P150 HFB is reinforced with a tenacious, anti-wicking, weft-inserted polyester fabric that is encapsulated on both sides with a proprietary thermoplastic PVC. 1 perms but less than or equal to 1. The vapor retarder shall be installed on the warm-in-winter side of the thermal insulation. Stego Wrap 20-Mil is manufactured with only the highest grade of prime, virgin, polyolefin resins which allows this product to greatly resist degradation. Suitable for all types of subfloor including cement subfloor. If the plastic (6 mil min) is not large enough to cover the entire envelope in one piece, it should be installed at the bottom first, overlapped so. PVC Membranes; PVC Accessories; PVC Adhesives; ALSAN® RS Liquid Resins. A polymeric release liner protects the adhesive. x 50ft. 85-ft x 1. Air & Vapor Barriers; Accessories & Primers. Cal-Flor VaporBlock is designed to be used under floating hardwood and laminate floor underlayment's to prevent vapor from coming up through the subfloor to your flooring. Americover offers durable string-reinforced vapor barriers made from 100% virgin polyethylene, which comes in 6 mil to 20 mil. 99 / piece Size: 120sqft. FEATURES & BENEFITS MOISTURE PROTECTION Sentinel Protect Plus®, with built in vapor barrier, offers superior moisture protection, sound reduction, thermal protection, and softness underfoot to help to ensure a quality floor install over time. x 50ft. HELPS REDUCE NOISE. Air vapor barriers come in two forms with various applications: fluid and sheet-applied air barriers. On average, a vapor barrier costs around $0. BEST OVERALL: Roberts First Step Premium Underlayment. . Project Source 20-ft x 100-ft Clear 6-mil Construction Film (Professional (6+ Mil). 1 perm – 1. Vapor barriers are the key to keeping moisture from where it doesn’t belong to prevent warping, mold, and other problems. $72. The thermal control layer is also called insulation. Its excellent R-value helps keep the floor more comfortable. The vapor barrier will cover and be sealed around them, so it’s worth double-checking now. SBS-Modified Bitumen Membrane Roofing Technical Manual. Viper Vapor Barrier Tape - White 4" X 180' 68189. The list below discusses the best location for. Hydrostatic pressure is an issue within foundations and it is important to protect your home and flooring from exposure to moisture. When it comes to vapor barriers, a true one has an impermeability value of 0. We'll explore the science behind crawl space liners, assess their durability, and uncover the advantages of thicker options, particularly the 20 Mil. ft roll. Apply Clear All Approximate Size Approximate Size 1000sqft 1. rolls eliminate the hassle of dealing with a giant sheet of folded plastic. Building code requirements for interior vapor barriers (or vapor retarders) have a sad and shameful history. A vapor barrier is a plastic liner placed on the crawl space floor, and sometimes the walls, that blocks outside moisture from entering the crawl space. This is where your video banner will be. Unroll one width of the 2in1 Vapor Underlayment. So the boards are resistant against water, moisture and humidity, SENTINEL CEMENT FOAM BOARD is an excellent alternative to traditional wall at shower, sauna, and any wet area where waterproofing and vapor barrier is absolute necessary to protect your home from mold and mildew. Waiting a few hours will pay dividends for years. Read honest and unbiased product reviews from our users. . x 76. ft. A vapor retarder is a material that reduces the rate at which water vapor can move through a material. and stick tile installation or other floor type job in a basement it's always a good idea to use some sort of moisture barrier protection. Air Permeability ASTM. 4/7/10 5:03 PM. If that air has a high moisture content, then this can spell trouble as it will condense inside your walls at night. Stego Wrap Vapor Barrier – it comes in various thicknesses: 10 mils (0. The Vapor Sentinel New Construction System is a solution for soil gas control to. Clear Plastic Sheeting is suitable for construction and DIY projects. Sentinel Underlayment Installation Instructions Make sure the subfloor is level, clean, dry, and structurally sound. 94 / piece Size: 100sqft. The goal of this underlayment is to block vapor and moisture, so an overlapping, tight seal will prevent any moisture damage through the barrier. 200sqft 1. In very warm, humid climates such as the Southeastern United States, crawlspace encapsulation is often the most effective way to solve and prevent moisture damage. DUOTACK SPF HFO Adhesive was developed to provide a much quicker and easier application in order to save time and. Wall systems from SOPREMA provide air and vapor barriers using laminated boards or self-adhered, spray-applied and roller-grade permeable or non-permeable options. The presenter is using 6 mil thick poly barrier. SENTINEL COPPER ART Prefabricated Inside Corners SDS. What makes this stand out from the 3-in-1 Blue underlayment is the. Subscribe Now:More:a vapor barr. This non-flammable vapor permeable air barrier provides moisture protection behind wall claddings such as brick, siding. ft. 20K views 7 years ago 6 mil reinforced vapor barrier. Sentinel has been in the crawl space restoration industry for decades, and is the most experienced local company in regards. Clean floor and perimeter walls. Rigid foam insulation is usually a qualified vapor barrier. Eliminates water and vapor migration. 99 / piece Size: 120sqft. AMERIQUE AMBLPD3M 3-in-1 Heavy Duty Foam 3mm Thick Premium Flooring Underlayment Padding with Tape and Vapor Barrier, 200 Square', Royal Blue, Feet. Say goodbye to the mold and humidity in your basement. A. Vapor barriers can help control moisture in everything from basements and crawl spaces to ceilings and walls. Sentinel XS Radon Vapor Barrier (1) Sheet Metal Protection (1) Signs of Crawl Space Issue (1) Skrim (1) Skrim- String Reinforced Polyethylene (1) Sola Wrap (1) Spill containment plan (1) Steel Banding or SolaWrap (1) Steiner Tunnel Test (1) Structural Care (1) Successful Greenhouse Venture (1) Supplemental Lighting (1) Surface. Basement Remodeling Ideas & How Tos Vapor SentinelTM Vapor Barrier Safety Sheet Continued on next page. ( 78) Model# 556487. Silicone Vapor Shield 400 sqft. Air & Vapor Barrier Laminated Boards. Apply Clear All Approximate Size Approximate Size 1000sqft 1. If the plastic. $30. Our products work with PVC roofing systems, including protective walkway pads, PVC roof bars, and both silver and copper art galvanized metal products to fabricate flashings, pitch-pans and edges when detailing PVC to metal transitions. With the insulating R. First introduced in the U. CALI. RUNNER-UP: QuietWalk Plus QW100PLUS Underlayment. Contact us. Air & Vapor Barriers; Accessories. Select vapor barrier. PVC Membranes; PVC Accessories; PVC Adhesives; ALSAN® RS Liquid Resins. The lower the perm rate, the better for slabs. 00 / piece Size: 300sqft Color: Blue. Using a utility knife, cut the length long enough to wrap edges up the wall 3 - 4 inches. Air & Vapor Barrier. 70 per square foot and will end up reducing your energy bill so that it will pay for itself before too long. Moisture/Vapor Barrier Underlayment . Select vapor barrier. 97. 1. e. 6 ft. x 25. Great for laminate & engineered floating floors. All under-slab plastics, be they retarders or. 100sqft 5. The Vapor Sentinel Remote Monitoring (VSRM) system greatly simplifies this OM&M by providing 24/7/365. Injection Materials. Sentinel Premium Quiet Underlayment. 1. 53 after $50 OFF your total qualifying purchase upon opening a new card. Husky. Blocks moisture to protect overlying flooring. Ultimately, the goal of vapor barrier strategies and sealing tapes is to prevent moisture from collecting and corrupting building materials and be less susceptible to long-term moisture problems. x 75ft. Vapor Barrier. VaporSentinel. ProtectEnvironmental. 300sqft 3. It’s a finish-ready vapor barrier and integrates as. I looked through, and think it is the section 3. Clean floor and perimeter walls. " Although they are technically two separate terms, the term vapor. Size: 120sqft. ASTM E283. View Specifications. 5 mmAlorAir® Sentinel HDi90 (Duct-able) Capacity. Air & Vapor Barrier Laminated Boards; Air & Vapor Barriers. Firstly, the vapor barrier should always be installed on the warm side of the wall. Cut holes in the barrier for electrical outlets, pipes, windows, and so on. When installed. Sentinel XS Radon Vapor Barrier (1) Sheet Metal Protection (1) Signs of Crawl Space Issue (1) Skrim (1) Skrim- String Reinforced Polyethylene (1) Sola Wrap (1) Spill containment plan (1) Steel Banding or SolaWrap (1) Steiner Tunnel Test (1) Structural Care (1) Successful Greenhouse Venture (1) Supplemental Lighting (1) Surface. Air & Vapor Barriers; Accessories & Primers. $451. In construction where moisture or its freezing will not damage the materials. The best moisture control must also have air-sealing gaps. This barrier is ready for finishing. Sentinel XS Radon Vapor Barrier is a 5 layer barrier engineered to have low permeability, extreme strength on a very durability material. This comprehensive outline delves into the crucial realm of crawl space vapor barriers, shedding light on their significance and the factors to consider when selecting the right thickness. Make sure all Conduits are capped and stubbed outside of the foundation area before pouring. 5 mm T Underlayment for Laminate, Engineered Hardwood, Vinyl. ft rolls. View Specifications. Also insure that the wedge barrier is set so that the wedge is facing the proper directionSENTINEL P200 HFB is a high-performance, fleece-backed, thermoplastic polyvinyl chloride (PVC) membrane designed for both steep and low slope applications…. DUOTACK SPF HFO Adhesive is a low pressure, two-component spray polyurethane foam adhesive formulated for adhering SENTINEL HFB (heavy fleece back) membranes, insulation and coverboard to approved substrates. 1. Helps prevent mold, mildew, and other issues related to vapor transmission; THERMAL BARRIER: Decreases both heat and cold transfer through the floor by as much as 15%,. Sentinel Protect Plus ®, with built in vapor barrier, offers superior moisture protection, sound reduction, thermal protection, and softness underfoot to help to ensure a quality floor install over time. Hg (3 ng/h • m2 • Pa) at only 12 mil thickness. 120sqft 1. Thickness and installation procedures differentiate TMs from common vapor barriers. Abstract. lvp underlayment. 5-mm Premium Cushion Flooring Underlayment (100-sq ft /Fan fold) Model # 1102002500. Complete 26-ft x 3. ROBERTS® Silicone Moisture Barrier Underlayment is designed to protect floors from moisture, without trapping it underneath the floor covering. It effectively protects the concrete slab from moisture entering. Accessories & Primers; Membranes. $58. SOPREMA combines a comprehensive line of commercial roofing solutions with decades of proven performance. As a recycled product, it may have slight. Primers; Field & Flashing Membrane Resins;. climates, vapor barriers, or -- more accurately -- vapor diffusion retarders (vapor retarders), should be part of a moisture control strategy for a home. Eliminates water and vapor migration. Installing a vapor barrier yourself can be somewhat challenging and require more than traditional home improvement tools. W x 25. These walls are also insulated for sound proofing so even more important to water seal the outer layer from the inner cavity. If low density open cell spray foam, flow through. If you live in Alabama (Mobile, Birmingham, Huntsville) or Tennessee (Nashville, Chattanooga, Knoxville), AFS can install a vapor barrier in your basement. Vapor Barrier Vapor Barriers provide additional protection between the subflooring and flooring by preventing the emission of vapors and moisture to the inside of the home. 10 MIL Viper II Barrier 14’ x 210’ for Underslab . This is where your video banner will be. Our vapor barrier measures up to 20 mil, which. Once your subfloor is inspected, repaired, and prepared, you are ready to start your installation. $72. 1-877-464-7834. PVC Membranes; PVC Accessories; PVC Adhesives; ALSAN® RS Liquid Resins. The built in moisture barrier protects your floor against harmful moisture vapor. A single roll of black 6mm vapor barrier (10×100) covering 1,000 square feet will cost approximately $70. A well-installed vapor barrier helps protect against potential water damage or mold growth down there, too. A quality air and vapor barrier membrane helps create an efficient exterior wall system by preventing air, and any accompanying moisture, from infiltrating the structure’s interior. Vapor Barrier 4. Types: 30-pound asphalt-coated paper, bitumen-coated kraft paper, plywood, vapor retarder latex paint 0. ASTM E 96 measures in part the "permeance" or how much water can pass through the vapor barrier. Our Address. A smarter approach to air and vapor control. Air & Vapor Barriers; Accessories & Primers. Secure the edges of the vapor barrier to the concrete using tape or staples. Conclusion: Choosing the right crawl space vapor barrier thickness depends on the specific conditions and moisture levels in the crawl space. BEST FOR SOUND INSULATION: Roberts 70-193A Super Felt. Purchase your 6 mil vapor barrier from a local home improvement store or online retailer. ft. AquaStop WallSeal™ Vapor Barrier is a heavy-duty 120-mil thick sheeting, specifically engineered to stop moisture infiltration through your basement walls. I would recommend Raven Industries VaporBlock 20 Plus or the VaporBlock Plus 6 as two of the better ones, since they also block out radon, methane, and VOC's. + QEP 62909Q 8" Adjustable Razor Floor Stripper. Viper VaporCheck II (Viper II) is the. Air & Vapor Barriers. Air & Vapor Barriers; Accessories & Primers. . Simple system activation. Sentinel Systems. Vapor barriers, or more accurately vapor diffusion retarders as they are now called, serve to slow the movement of moisture. 1. Accessories & Primers; Membranes. Viper VaporCheck II (Viper II) is the first line of defense against damaging water vapor and soil gas threats existing below the concrete slab. In order to save money, I've switched my wall assembly last minute from using exterior rock wool board to a double stud wall construction. 2mm thick, available in 100 sq. USES: Vapor Sentinel 20-Mil Vapor Barrier is a sub-slab barrier. When used over a concrete subfloor, ECF eliminates the need for an additional vapor barrier, saving time and money. 973-506-6550. Buy from trusted and established brands like Sentinel ; The most affordable underlayment items;. 7 ft. Call AFS Foundation & Waterproofing Specialists for Basement Vapor Barrier Installation. View Specifications. It is made of premium-quality polyethylene to ensure long-term use. 2. The exception is when laminate flooring is being installed in a high moisture area, such as a bathroom or basement , where a moisture barrier underlayment is a good idea. Home | AmeristarMoved Permanently. 0 perm •Class III Vapor Retarder: 1. Primers; Field & Flashing Membrane Resins;. Eco Ultra Quiet Premium Acoustical Underlayment. Check out ECF's 10-in-1 features listed below. Q. Remote Monitoring; New Construction; Vapor Products Group. Tips for concrete floor vapor barrier installation: 1. Primers; Field & Flashing Membrane Resins;. View Product 100 sq. 14 ft. Installs easily due to its flexibility to adapt to the job site. Size: 100sqft. Air & Vapor Barrier Laminated Boards; Air & Vapor Barriers. It is a fire-retardant vapor retarder made of polyethylene laminates. ). W x 100 ft. Sentinel Premium Quiet Underlayment. Without vapor barriers, your garage can experience the following issues: Wet and moist walls. The audimute sentinel basic vapor barrier is perfect for homes, offices, studios, restaurants, and any other space to help block sound from entering or exiting. It allows the user to create effective methods in detailing PVC-to-metal transitions. DESCRIPTION USES: Vapor Sentinel 10-Mil Vapor Barrier is used for sub-slab installations, to protect indoor structures from soil gas transmissions, as well as moisture. Sentinel XS Radon Vapor Barrier (1) Sheet Metal Protection (1) Signs of Crawl Space Issue (1) Skrim (1) Skrim- String Reinforced Polyethylene (1) Sola Wrap (1) Spill containment plan (1) Steel Banding or SolaWrap (1) Steiner Tunnel Test (1) Structural Care (1) Successful Greenhouse Venture (1) Supplemental Lighting (1) Surface. Plastic on the outer surface of a wall in cold weather could cause problems. SOPRA-TITE SENTINEL® 200 Fascia is manufactured in 12 foot lengths with pre-punched fastening holes in the galvanized water dam to ensure correct fastener. Fluid/Liquid-Applied Air & Moisture Barriers. 2. The presenter is using 6 mil thick poly barrier. 120sqft 1. Most of the barrier materials used in the construction industry are vapor or moisture diffusers or retarders. I used some tips I found on here, about cleaning the door skin with mineral spirits, using a heat gun to make the butyl tape more tacky, pressing down very hard around the perimeter to ensure a good seal; I even used duct tape to further seal the vapor barrier. SENTINEL® P200. Known for our flagship Stego Wrap line of under-slab vapor barriers and retarders, Stego has earned the respect, trust, and recommendation of architectural, engineering, and construction communities. However, only an air barrier prevents airflow (and the moisture attached to it) into the envelope. We can start with a basic building science refresher. 6-mil vapor barrier roll. 5 – 10 minutes). 0, via Wikimedia Commons. At this time check for the check for the final grade of the barrier – should be . Accessories & Primers; Membranes. The concrete slab is then poured on top of it. 5 mm thick high density XPS foam, this underlayment enhances the performance of your floating floor. If you are a DIYer, the cost could be extremely minimal. 36in. However, it isn’t always the best option. The short answer is NO! Vapor barriers are only installed over dirt in a crawl space or the walls and floor of a basement. x 167 ft. 3in1 Blue Vapor Barrier Underlayment is universal and affordable. Vapor Barriers: Removal, Replacement, and Cost. Either roll out a new roll or use a folded over piece that is already cut.