Sentinel basic vapor barrier installation. Vapor barrier installation could cost anywhere from $1,200 to $4,000 on average. Sentinel basic vapor barrier installation

 
 Vapor barrier installation could cost anywhere from $1,200 to $4,000 on averageSentinel basic vapor barrier installation Today’s vapor barriers are ensuring buildings’ airtightness

Perfect for wood, Bamboo and laminate floors easy installation with self adhesive strip ; 200Sqft AMERIQUE premium 3 mm thick flooring underlayment padding with tape & vapor barrier 3 in 1 heavy duty foam (200Sf total, 200Sf/roll), 200 sq. 100% waterproof, pet-friendly, scratch, dent, and stain resistant, Nucore LVP comes in three collections: Nucore, Nucore Performance and NuCore Whispercore. Where it is located in an assembly and its permeability is a function of climate, the characteristics of the materials that comprise the assembly and the interior conditions. Non-toxic, zero VOC, recycled vapor barrier for hardwood flooring. Barrier Seaming Tape is a low-permeance tape. This type of insulation has a Kraft paper face with two flanges. The difference between air barriers and vapour barriers: The job of a vapour barrier is to prevent vapour diffusion and the job of an air barrier is to stop air leakage through differences in air pressure between inside and out. SENTINEL VCM can be used to fabricate metal flashings, pitch-pans and. Lowes recommends installing a plastic vapor barrier behind the backer board in addition to a paint-on barrier between backer and tile. A vapor barrier— also known as a. With under-slab vapor barrier technologies, you need specialized equipment to run tests like permeance, conditioning, tensile strength and puncture resistance, among a litany of others. 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. The difference between air barriers and vapour barriers: The job of a vapour barrier is to prevent vapour diffusion and the job of an air barrier is to stop air leakage through differences in air pressure between inside and out. 70 per square foot, depending on the materials used during construction and the barrier thickness. It’s best to have a professional complete this process as biohazards like mold, pest droppings, debris from burst pipes, etc. Ft. Follow adhesive label application instructions. Next, to prevent cold air from entering the crawl space, install R30 Fiberglass insulation into the bond cavity. The Vapor Sentinel Soil Gas Control System is a sub-slab ventilation system that traps harmful radon and chemical VI gases and prevents them from entering the building. Advertisement. Rated to no less than 3000 PSIG (20. installation process, the New Construction System saves installation time and costs. With a simplified installation process, the New Construction System saves installation time and costs. The Vapor Sentinel New Construction System is a solution for soil gas control to. The site occasionally offers a line or two at clearance prices of $3. Vapor Sentinel provides the latest in remote telemetric monitoring technology to provide around-the-clock data collection and reporting. 7 All surface area covered with 3M™ Air and Vapor Barrier. The barrier keeps moisture from reaching the walls, and it also helps water drain into the soil, so there is not a layer of water trapped in the crawl space. Average Cost of Vapor Barrier Installation. 5 VDC @ 1 amp wall transformer. Roll Out and Cut Plastic Sheets. Step 1: Gather necessary materials. Install a continuous vapor barrier (if required in your climate) with a perm rating of less than one. $169. Common methods include stapling the barrier to the studs, taping the seams, and ensuring a proper overlap. A) Install the vapor barrier as closely as possible to pipe penetrations to minimize the amount of POUR-N-SEAL™ necessary to seal around all penetrations. This can be attached with staples beneath the rafters or trusses on the inside. Cut holes in the barrier for electrical outlets, pipes, windows, and so on. Love it! My only regret was using both the sentinel underlayment and a 6 mil vapor barrier on top of concrete. 6” (15 cm) of release film. Re-grade Soil to Direct Water into Drainage System. Step 7: Final steps and considerations. Average Price Per Square Foot: $2. 1. In addition to the basic steps, there are a few additional considerations for a successful vapor barrier installation. Signs That Your Home Needs a Vapor Barrier. This sub-floor barrier slows moisture migration and helps prevent buckling, cupping, and cracking. With quick and easy installation, its the perfect floori. Contact Professionals: Reach out to roofing professionals to assess the extent of the damage and provide a. 00 per square foot, putting the total project cost at around $528 for the materials. 5mm foam with attached vapor barrier. Crawlspace Challenges for the Southeast. Complete 26-ft x 3. A 6-mil sheet is considered a Class 1 vapor retarder, which is the minimum recommended thickness when installing a reinforced poly vapor barrier. Skip to main content. x 167 ft. 35 – $4. S. All seams overlap awhere it functions as an air barrier and a water-resistive barrier. Contact your local dealer or call 1-800-638-7048. Blue Summit Supplies Vapor Barrier Tape, PE 9mm Polyethylene Tape Sealing Moisture Barrier Seam and Seal Tape for Crawl Space or Marine Use, Waterproof White 9 Mil Poly Tape, 3. It allows the user to create effective methods in detailing PVC-to-metal transitions. Formulated from top-quality polyethylene (polyolefin) resins. As most crawl spaces will require two rolls for completion, it could cost a DIYer as little as $140. Moisture flow by vapor diffusion is governed by the second law of thermodynamics (basic physics to some, not so basic to others). Stego Installation Support. in 1948, these code requirements were never based on science—they were based on erroneous theories promoted by manufacturers who were worried about liability issues associated with. 35 – $4. This can cause wood rot and which costs $600 to repair, and you may spend up to $5,000 on basement mold remediation. The "expert" at Home Depot, and another guy on youtube seem to think this is a very good idea, and even suggest sealing it with roofing tape. Overlap the seams by no less than 12 inches and secure them together with the poly PVC tape. Safe Handling Precautions Practice good housekeeping and personal hygiene and always wash hands after handling the product. View Specifications. Vapor barrier with PE film; Easy to install with attached overlapping lip and tape; Quick View. Following installation, each depressurization system was tested to ensure that it worked properly. 360 sq. In the hallway I only used the underlayment and it's much quieter. Use a utility knife to cut the vapor barrier to size, if necessary. SOUND REDUCTION: Reduces sound transfer, making the floor quieter in the home. Types: 30-pound asphalt-coated paper, bitumen-coated kraft paper, plywood, vapor retarder latex paint 0. Large Blowing Machines. Simple system activation. Vapor Barrier Vapor Barriers provide. SOPRASEAL LM 202 VP is a one-component spray applied vapor-permeable air barrier membrane used in wall construction. B. Hydraulic Wedge Barrier - Sentinel. The barrier serves to keep moisture out of the room and helps to control humidity levels. 50 to $0. As a result, we have the. SECTION 4 Stego Wrap Vapor Barrier and Retarder Installation Instructions 6 Always consult the project design team for where to terminate the vapor barrier to strike the balance between the location of the vapor barrier on or around foundation constructions and any structural concerns before proceeding. If the roof is insulated with foil-faced insulation blankets, the. . 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. A barrier consists of a vapor barrier and venting system. At just 100 sq. A 6 mm thick vapor barrier might cost about $0. 00 per sq/ft and rise to $4. This is an issue with moisture of construction, capillary rise and ground water leakage. How much crawl space encapsulation should cost. You will want to overlap the vapor barrier equal to 2 inches or more on the wall. Atticare is a top-rated and fully licensed insulation contractor. Type. It also has the ability to provide you increased energy. product, video recording | 586 views, 3 likes, 0 loves, 0 comments, 5 shares, Facebook Watch Videos from The BOSS: The BOSS is always looking for better. Installing a. RUNNER-UP: QuietWalk Plus QW100PLUS Underlayment. I am building in Central KY (Zone 4), and planning brick veneer over tyvek, then 2 layers of 1-1/2" fiber faced polyiso, then osb, 2x6 stud with blown cellulose, then drywall. Ideal for for all flooring ranging from concrete slab, bamboo, floating and wood floors, or even laminates engineered hardwood! In addition to the basic steps, there are a few additional considerations for a successful vapor barrier installation. We use high performance plastic sheeting products used in everyday construction, industrial, and agricultural applications. Ever increasing data volumes of satellite constellations call for multi-sensor analysis ready data (ARD) that relieve users from the burden of all costly preprocessing steps. MOISTURE PROTECTION: Helps prevent mold, mildew, and other issues related. Contact today for a FREE cost estimate from your l. Sheeting vapor barriers are made of paper or plastic and are applied directly to the surface of the wall, ceiling, or floor. Center seaming tape over small hole (s) or slice (s) in the vapor barrier. 15 a foot or $160 to $200 for a 1,200. Air barrier materials can also be provided with properties which also class them as vapor barriers. Document that the vapor barrier is intact prior to installation of concrete floor (ie. SECTION 4 Stego Wrap Vapor Barrier and Retarder Installation Instructions 6 Always consult the project design team for where to terminate the vapor barrier to strike the balance between the location of the vapor barrier on or around foundation constructions and any structural concerns before proceeding. x 84T piece Add to Cart. ®Install Stego ® Crete Claw Tape. One tactic you can use is to use multiple vapor barriers in construction. A vapor retarder is a material that reduces the rate at which water vapor can move through a material. This heavy duty 60 yard roll of moisture resistant crawl space vapor barrier seam and seal tape is highly durable, waterproof and weatherproof. 12 (8 to 12 cents) per square foot. It also protects flooring from increased moisture levels and is used as a component of radon mitigation systems to protect indoor air. There are multiple types of vapor barriers, each ideal for different kinds of surface flooring. Conceptually, the ‘air/vapor barrier’ was a material purported to address both air infiltration and vapor diffusion issues. How Much Does It Cost to Install a Vapor Barrier? Depending on the thickness of the plastic, which ranges from 6 to 20 millimeters, a crawl space vapor barrier costs $0. roll measures 3 ft. If required, the system can easily be. We’re proud to serve customers in the San Francisco Bay Area, Los Angeles and New Jersey. This misunderstanding arises because air typically holds a great deal of moisture in the form of vapor. Section 2 Hydraulic line Conduit – install one 3” Schedule 40 PVT conduit to the rear of the Sentinel Barrier. resistant with good insulation properties. While underlayment is not necessary for laying vinyl plank flooring, it can provide a lot of helpful benefits. Do not fasten the subfloor through the floor assembly. A moisture barrier is used when installing floors or walls in areas prone to dampness or excess moisture, such as basements, ceilings, or crawl spaces (source). Vapor Barriers. Color: yellow. The added benefit to this underlayment is sound cushioning. S. A well-designed ASD system consists of a soil gas collector, a vapor barrier (also commonly referred to as a “soil-gas retarder”), piping, and a specially designed radon fan to depressurize the soil beneath the slab or under the soil-gas retarder in a crawl space. This video demonstrates how to install a moisture barrier over a concrete subfloor. Soil gas and moisture control. A proper vapor barrier installation can limit your liability. Synthetic fiber pads are fast. Vapor Sentinel New. ”. NEW 3M™ Air and Vapor Barrier 3015NP provides building protection that installs quickly and easily even under extreme conditions without sacrificing performance. A basement vapor or moisture barrier is installed during the new construction of a home or the remodeling of a basement. , Silver Chrome (pack of 1) Easy installation with overlap and adhesive strip › See more product. Rigid: supported in both directions from wind pressure. Amazon Affiliate links for acoustical sealant:you want to help support Shannon to produce more videos like this, visit Sentinel® Basic, this manual and/or CD and the 7. Visit Stego Wrap Barrier 15-Mil. The best approach for a vented attic, in a cold climate, is installing a layer of drywall with a good coat of latex paint (the paint creates a semi-permeable vapor barrier). SOUND REDUCTION: Reduces sound transfer, making the floor quieter in the home. 8; No vapor barrier is needed if packed to a density of at least 2. Home | AmeristarInstallation. This underlayment also has a pre-attached vapor barrier to protect floors from moisture escaping concrete subfloors. 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. It also costs more to install. Installing both interior and exterior air barrier systems can address the weakness of each. SOPRASEAL LM 202 VP is a water-based, ultra low VOC liquid product composed of a modified rubber formulation. Once installed, tile can be applied directly on top. For optimal moisture control you will want to overlap the poly barrier by at least six inches. Example #2- Install the dehumidifier in your crawl space with the remote mounted in your garage. First, debris in your crawl space needs to be cleared out before installing a vapor barrier. Some builders in desert climates ignore this advice, figuring. by MP Global Products. This underlayment protects floors with quality moisture protection while offering basic soundproofing;. Less risk, less cost, and more data collection for your peace of mind. Dry-Tek Environmental offers a helpful guide to installing a vapor barrier in your crawl space, including the necessary tools and materials. 154 Results. You’ll want to look your vapor barrier over. Step #3: Installing Vapor Barrier and Insulation – When we have the correct fitting for your vapor. 4 mm (1 in. A standard 20-millimeter crawl space vapor barrier costs $0. When water vapor gets into your insulation, it can cause a whole host of problems, including. • Reduce in-room noise and impact sound for quieter, more pleasant spaces. Sale. Place a termite shield, sill gaskets, or other vapor-impermeable membrane on the top of the foundation wall to prevent moisture from wicking into the framed wall from the concrete foundation wall by capillary action. Class I barriers don't allow any amount of moisture to get through. 50 per square foot on average, depending on the thickness of the plastic, which ranges from 6 to 20 millimeters. Winston-Salem, NC 27103. 85-ft x 1. x 1. VaporBlock® is a high-performance, under-slab vapor barrier designed to retard moisture migration through concrete slabs and walls to protect your structures from mold, mildews and fungi. 5 perms for commercial use. Screw one elbow onto one end of the black threaded plumbing pipe. A vapor retarder…. Make sure it is of the right size for your basement – 2 feet wide by 3 feet long is ideal. Fix Your Nasty, Energy-Wasting Crawl Space CleanSpace crawl space encapsulation is the solution you need. Vapor barriers come in a variety of materials, with two of the most common options being. INSTALLATION SUB-SLAB: Vapor Sentinel TM 10-Mil Vapor Barrier is unrolled over an aggregate, sand, or tamped base. No need to bother with large fold-out, low quality, off-spec, construction grade films, which can be bothersome and hard to use before the. 400SQFT AMERIQUE Premium 3 mm Thick Flooring Underlayment Padding with Tape & Vapor Barrier 3 in 1 Heavy Duty Foam (400SF Total, 200SF/Roll), 400 sq. 7. Under-slab vapor retarders or barriers are considered a productive and cost-effective way to control moving moisture in concrete. when they are covered with plastic vapor barriers). Vapor Barrier Installation. wider. Contact us. Dimensions: 14 ft. Stego Installation Support is a no-cost service designed to help achieve an effective installation and add value for project teams. Moisture management strategies respond to the forms of water that impact the performance of. Rot to your ceiling and walls. Top and Bottom Wall Interface - Methods 1 & 2. By Mark Robins. Mold and mildew growth. This barrier is around 10 to 20 millimeters thick and catches water and moisture seeping through your concrete, channeling it downwards to a connected drain. For a complete building envelope, built with the durability you've come to know in our roofing and waterproofing products, SOPREMA offers a comprehensive line of air and vapor barrier products ranging from self-adhered to spray or roller grade permeable and non-permeable options. Barritech VP is vapor-permeable — moisture vapor can diffuse directly through the membrane. Step 4: Attach the vapor barrier to the walls. (888) 355-1522. , how much we stop or let. Flooring moisture barriers are placed beneath the floor’s underlayment. The barrier comes in rolls about twenty-four inches wide. Rather than trapping moisture, this semi-impermeable vapor barrier, allows moisture to slowly dissipate through the flooring without mold. Drill a hole in one end of each elbow large enough to fit the quick link through. Measuring the perimeter of a mobile home is simple. ). In Joseph Lstiburek's "Top Ten List of Dumb Things To Do In The South", he says that all brick should have a vapor barrier drainage plane. Complete 26-ft x 3. Seal Stego Wrap along all terminating. Vapor 3-in-1 Blue underlayment is the most budget friendly option of all vapor barrier underlayment. x 140 ft. The result is a system that effectively stops, collects, and exhausts radon. 70 per square foot. Page 1 Homeowner: Keep these instructions and maintenance guide in a safe place for future reference. 15 to $0. However, the degree by which each moves, and level of control (i. Yes Show MoreStep Seven: Insulate the Bond. The function of a vapor barrier is to retard the migration of water vapor. 50 per square foot on average. Take This video describes the process of installing a moisture barrier over a concrete subfloor. The vapor barrier lines the ground and walls within the crawl space and prevents moisture from entering. The cool surface is the sheathing, assuming no exterior insulation. 99 $189. The Vapor Sentinel New Construction System is a solution for soil gas control to. INFORMATION ON BASIC PHYSICAL AND CHEMICAL PROPERTIESHome | AmeristarSENTINEL P150 HFB is a high-performance, fleece-backed, thermoplastic polyvinyl chloride (PVC) membrane designed for both steep and low slope applications. We used 10mil vapor barrier, vapor barrier seam tape, and Zip System flashing tape for this installation. INSTALLATION SUB-SLAB: Vapor Sentinel TM 20-Mil Vapor Barrier is unrolled over an aggregate, sand or tamped base. says it can be installed without any underlayment. Air & Vapor Barrier Laminated Boards; Air & Vapor Barriers. 00 Perms IMP. Any distance greater than 100 feet (30. This five-minute video provides everything you need to know to properly install Stego® Wrap Vapor Barrier below a concrete slab to prevent against moisture d. BEAST FOOT FORMING UTILITY Beast Foot, with its. Concrete walls should have any void areas filled and any fins, mortar joints or screws should be flush with the wall. The barrier comes in rolls about twenty-four inches wide. See installation instructions and warranty information for more guidance. When all layers above the V-Force. VYCOR® enV-S™ represents the next generation of weather resistive barriers and is designed to provide superior weather protection, and improved energy performance. Installing an effective vapor barrier is only for experienced DIY experts. Beginning at one side of the crawl space, lay down 6-mil or thicker polyethylene plastic over the entire crawl space. • Do-it-all underlayment provides complete moisture and vapor protection for all flooring types in floating installations. This estimate includes materials and labor. Improve this answer. Attic Knee Wall Interface. A vapor barrier is intended to keep water vapor or water molecules from passing through the barrier. (xiv) Before the application of jacketing all insulated surface shall be sealed with vapor barrier sheet. Each row should have no gaps in joints. Advantages: Disadvantages: Polyethylene Vapor Barriers. The membrane brings together the. 49. Atticare encapsulates your crawl space with a vapor barrier to ensure it stays dry and free of mold, mildew and rot. Wrap vapor barrier up edge of wall 3-4 inches and tape to wall. This 500 sq. This six-minute video provides everything you need to know to properly install Pango® Wrap Termite/Vapor Barrier below a concrete slab. A vapor barrier, also referred to as a vapor retarder, is a moisture-resistant material that can be applied inside an exterior wall, a crawl space, or an attic to provide vulnerable spaces with added protection against a potential moisture problem. Refer to SOPREMA® specifications and installation instructions for additional. I put the barrier on the inside to prevent condensation in my wall cavities. Although crawlspace vents were originally designed to facilitate humidity exchange with the outside air, they may contribute to mold and rot. Step 3: Is the Underlayment Folded? Sometimes the roll of vapor barrier will be folded up to three times over. Vapor Sentinel New Construction Systems eliminate the need for costly trenching and aggregate backfill with its stronger-than-concreate gas-permeable layer. Its superior strength helps to protect locking systems and joints. 70 and $3. Simply leaving off plastic or other low permeance vapor barriers will not avoid problems, because interior water vapor will migrate outward. Premium vapor barrier. * Common home footprints have 6 - 12 corners; complex home footprints have 12+ corners. The cost of strong vinyl tape for securing plastic at the edges and for taping sheeting. Make sure it is of the right size for your basement – 2 feet wide by 3 feet long is ideal. For additional information, please contact us. Polyurethane sheeting is a typical vapor barrier that contractors use to prevent moisture from penetrating the walls of a basement. , Ste 205. Sub-slab depressurization or sub-slab venting is a way to prevent the migration of these vapors from entering a building. And the membrane on the "bottom" is also a vapor barrier. The yellow plastic film should face the subfloor and the overlap should be on the opposite. The following table summarizes the key differences between Class 1 and Class II vapor barriers: Installation and Maintenance: Proper installation of the vapor barrier is vital for its effectiveness. 4 mm Acoustical Underlayment with Vapor Barrier for All Vinyl Plank Flooring. When it comes to vapor barriers, a true one has an impermeability value of 0. Pre-fab units work well if you don't mind sticking with predetermined sizes and styles. Vapor Barrier. Water vapor will always move from a higher partial water vapor pressure environment -- a function of temperature and relative humidity -- typically found below the. Exclusive to Floor and Decor, Sentinel Protect Plus Underlayment is premium underlayment designed specifically to be used with attached pad laminate, vinyl, & rigid core flooring. Weekly Household Auction Terms & Conditions. Ask us anything about getting insulation with a vapor barrier at your home! Give us a call to set up your free consultation at (866) 692-5449 or contact us here. How did this project turn out? WATCH HERE:. Using Vapor Sentinel system tape, seal to wall. Flooring moisture barriers are placed beneath. Make sure this fits by entering your model number. Install & Product documents. Basic Vapor Barrier Design . All seams overlap aClass II – These vapor and moisture barriers are semi-permeable, allowing some moisture to pass through (greater than 0. The use of vapor barriers in residential construction began in the 1950s as a way to protect homes from moisture damage. These simple barriers are very important components in crawl space encapsulation and have a huge impact on the health and wellbeing of a property once they are installed, preventing dampness, humidity, and even pest infestation. It’s not a sealed system which means moisture can go under or around the vapor barrier and still get into your crawl space. When you specify Stego Barrier Solutions and products, you gain access to a large nationwide network of full-time technical sales managers providing unmatched local support and service. Vapor barriers are both. A smarter approach to air and vapor control. . Silicone Vapor Shield (SVS) is the best-rated underlayment paper for moisture protection of hardwood flooring over plywood or OSB subfloors. eliminating the need for trenching and aggregate backfill. Determining what works best for you,. x 60 ft. 00 for the materials (stakes for securing the. Step 6: Install the flooring over the vapor barrier. Premium vapor barrier. Following installation, each depressurization system was tested to ensure that it worked properly. 08 to $0. Vapor barriers may help you transform a dusty, moist basement into a livable space to enjoy time with your family. 6 mil reinforced vapor barrier. 0 perms for residential use and below 0. Average Price Per Square Foot: $2. 00 / piece Size: 300sqft Color: Green. Extend Vapor Sentinel 10-Mil Vapor Barrier up the foundation wall. A low vapor diffusion material for the vapor barrier itself. vapor intrusion is most likely to be a problem. It sounds a little squishy when walking on it. 006 Film Barrier Installation Methods • Floating Floors For Use Under • Hard Surface Flooring. Basic Concepts of Vapor Retarder Design 6 . The cost of a vapor barrier installation ranges from $2 to $4 per square foot or $1,200 to $4,000 in supplies and labor. Check out Figure 1. We're here to help. Manufacturers offer a bevy of options, such as roll-down plastic or felt sheets, paint-on coatings, and moisture-inhibiting. Surround the pipe with textured double-sided tape to help anchor the epoxy, ensuring a tight seal. Attach the snap hooks to each quick link. These include properly anchoring the barrier to prevent shifting, providing ventilation for potential radon gas, and periodically inspecting the vapor barrier for any damage or wear. Also insure that the wedge barrier is set so that the wedge is facing the proper direction *The wedge opens to the attack side. Or you might consider spray foam between the studs. It doesn’t let water or vapor through. Step Eight: Installing Vapor Barrier Liner. This heavy duty 60 yard roll of moisture resistant crawl space vapor barrier seam and seal tape is highly durable, waterproof and weatherproof. SENTINEL® H2O Bonding Adhesive is a water-based polymeric adhesive specially designed for adhering SENTINEL PVC membranes and flashings to a variety of substrates for horizontal or vertical applications. The cost of installing a vapor barrier depends on the type of vapor barrier, measurements of your crawl space, and other materials or tools. . Source. MOISTURE PROTECTION: Helps prevent mold, mildew, and other issues related to vapor. Using a combination of Vapor SentinelTM barrier and tape, all penetrations They are usually made of special materials that don’t let water vapor through, like plastic sheets. For Use With: For Use with Vinyl PlankClear All. Chances are that someone will have to slide around in the crawlspace later to fix a pipe or run. It’s worth noting that the thicker material your vapor barrier has, the more costly it will be. Its excellent R-value helps keep the floor more comfortable. Extend Vapor Sentinel 10-Mil Vapor Barrier up the foundation wall. completed a minimum of 3 days prior to air barrier installation. Installation of Stagestep Vapor BarrierRestricts migration of soil gases such as radon and methane. A well-installed air barrier controls both the flow of air. g. AVAILABILITY & COST Vapor Sentinel 10-Mil Vapor Barrier is available directly through. Made from pulverized newspapers and treated with boron to resist fire and pests.