resistant with good insulation properties. x 84T piece Add to Cart. Vapor Barrier Vapor Barriers provide. 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 vapor retarder…. See installation instructions and warranty information for more guidance. Building occupants, certain appliances, plants, and plumbing equipment generate moisture that is carried in the air as vapor. Vapor Barriers provide additional protection between the subflooring and flooring by. Its excellent R-value helps keep the floor more comfortable. Complete air blockage is essential to provide a satisfactory moisture barrier, and will also maximize the wall's energy efficiency. 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. Contemporary landscapers also use vapor barrier paints and coatings at the time of drywall repairs. It helps increase the life and appearance of your flooring. An example of this are self-adhered modified bituminous membranes and sheet polyethylene which can be used as both an air barrier and a. Unroll the vapor barrier material. 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. Note – legal. 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 formulation. Use 6mil basic water barrier only. CALI. Determining what works best for you,. and any wet area where waterproofing and vapor barrier is absolute necessary to protect your home from mold and mildew. However, there are liquid solutions that you can apply by brush, roller, or trowel. The Vapor Sentinel New Construction System protects your new construction projects from hazardous soil vapors without the need for trenching or aggregate backfill. 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. Cantilever Interface. However, the degree by which each moves, and level of control (i. On average, this could go from around 1,200 USD to 4,000 USD. To begin laying flooring start at the corner of the room and lay plank-by-plank on top of underlayment until you reach the opposite wall. Use seam tape to cover every seal of the vapor barrier, applying tape from top to bottom. The higher the rating, the more effective at limiting sound. Vapor barriers are great at helping to keep crawl spaces strong and. Air barrier materials can also be provided with properties which also class them as vapor barriers. Improve this answer. For those with vapor barrier installation experience, the following may be review, but as. SOPRASEAL LM 202 VP is a water-based, ultra low VOC liquid product composed of a modified rubber formulation. The downside to using a waterproofing membrane is that it's expensive. By using a vapor barrier, builders can help to prevent these problems. Share. eliminating the need for trenching and aggregate backfill. Once your subfloor is inspected, repaired, and prepared, you are ready to start your installation. Those that prescribe to #2 (letting their sauna walls. Install a floating subfloor. 3in1 Blue Vapor Barrier Underlayment is universal and affordable. SKU: 100893247. Make sure the subfloor is level, clean,. At other times of the year,…We would like to show you a description here but the site won’t allow us. • Easy to seal with built in lip and tape. Easy for me, then. Vapor Mat is a heavy-duty, impact resistant, cuspated material that facilities a. Principal Applications Installation One of the basic principles ofRoll the vapor barrier out parallel to the direction you are installing your floor. Rigid air barrier materials for use behind showers and tubs include fiber-cement, fiber-reinforced gypsum, glass mat. Installation Guide 3M™ Air and Vapor Barrier 3015NP 1 Prepare the wall. There are two basic types of vapor barriers used with exterior wall insulation. A single roll of black 6mm vapor barrier (10×100) covering 1,000 square feet will cost approximately $70. Introduction. . If the roof is insulated with foil-faced insulation blankets, the. Follow adhesive label application instructions. It adds cushioning for extra comfort underfoot,. Add vapor tape outside the plastic sheet to prevent moisture from entering. Sort by: Top Sellers. 4 mm (1 in. It’s not a sealed system which means moisture can go under or around the vapor barrier and still get into your crawl space. Seal all seams, gaps, and holes in the air barrier with caulk or foam before tub/shower installation. 3. $29. No other materials are needed for install due to the Lip & Tape Design ensuring quick and easy install above, on or below grade. Actual 10 mil is equal to . 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. Overlap any seams and tape them. The yellow plastic film should face the subfloor and the overlap should be on the opposite. Sentinel Premium Quiet Underlayment. Support our channel if you find our content valuable This video reveals how to make and install a 6 mil poly waterproof plasti. Seal all. BEST STANDARD FOAM: Roberts Serenity Foam Underlayment. Seal all wall cracks and holes in the wall being vapor-proofed to block air gaps. The barrier serves to keep moisture out of the room and helps to control humidity levels. Average Cost of Vapor Barrier Installation. With a simplified installation process, the New Construction System saves installation time and costs. QuietWalk Plus Laminate & Wood Flooring Underlayment (Float, Glue, or Nail) with Vapor Barrier- Sound Reduction, Compression Resistant, Moisture Protection 6'Wx60'L Roll (Covers 360 sq ft). 99 per square foot plus the cost of installation if you hire a pro. Vapor barriers come in a variety of materials, with two of the most common options being. Purchase your 6 mil vapor barrier from a local home improvement store or online retailer. We would like to show you a description here but the site won’t allow us. Basement Systems offers professional crawl space encapsulation and repair solutions in Elizabethton, TN, including vapor barrier installation, sump pumps, and jack supports. See On. Type. In the winter, however, my home's interior humidity would condense on an exterior vapor barrier. It is designed to effectively extract all excess moisture from the air to make it inhospitable for harmful entities such as mosquitoes to thrive and bring harm to your family. Premium vapor barrier. MoistureBlock is a low density Polyethylene film that can be used during the installation process with floating laminate and engineered wood floors. Skip to main content. I just installed it in my living room / hallway. Wilmington Location. The insulation (fiberglass or cellulose) is then placed on top of the drywall with no vapor barrier above or below. 124 total votes. 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 drywall will absorb the moisture, but like any materials in a home, the drywall will assume the same relative humidity levels as the basement. Or you might consider spray foam between the studs. Step 3: Measure and cut the vapor barrier. The hose manufacturer’s factor of safety. Step 4: Install Underlayment. ®Install Stego ® Crete Claw Tape. 1-800-638-7048; Find a local contractor; In business since 1987. Repair large cracks or damaged walls. Installation. Moisture can cause serious problems in homes, including rot, mold, and mildew. (may be higher, check job specifications or building codes) 4. 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. These. Cut the felt as long as the stud bays, but about 2 in. The thicker the barrier, the higher the cost, with barriers ranging from 6 to 23 millimeters in thickness. 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. PANGO® WRAP TERMITE/VAPOR BARRIER INSTALLATION INSTRUCTIONS P4 of 7 5. 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. Determining the Need for a Vapor Retarder 6 . No need to bother with large fold-out, low quality, off-spec, construction grade films, which. 0031 inches thick, and unfaced expanded or extruded polystyrene. There are multiple types of vapor barriers, each ideal for different kinds of surface flooring. of foam or mineral-wool board against the concrete. , wet lumber, cast-in-place concrete, etc. Sentinel Cement Foam Board. This non-flammable vapor permeable air barrier provides moisture protection behind wall claddings such as brick,. In this video we. ROBERTS First Step Premium Underlayment - 630 sq. We recommend working from left to right. Step #2: Measuring the Crawl Space – Once the crawl space is cleaned and repaired, it will need to be measured for specific dimensions to ensure that the barrier installed fits and doesn’t leave room for moisture and pests to creep in. Before installing the systems in 2007, EPA sealed cracks in basement walls and floors, and covered sump pits. 50 to $0. Check the vapor barrier for any signs of tears or rips. 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. The vinyl coated metal can be used in both mechanically fastened and adhered roofing systems. The site occasionally offers a line or two at clearance prices of $3. 85-ft x 1. 78 Inch, 180 Foot Roll 4. Its superior strength helps to protect locking systems and joints. See installation instructions and warranty information for more guidance. Today’s vapor barriers are ensuring buildings’ airtightness. ASTM E283. Methods Used to Determine Vapor Retarder Effectiveness 8. Vapor Barriers provide additional protection between the subflooring and flooring by preventing the emission of vapors and moisture to the inside of the home. INSTALLATION SUB-SLAB: Vapor Sentinel TM 20-Mil Vapor Barrier is unrolled over an aggregate, sand or tamped base. Manufacturers offer a bevy of options, such as roll-down plastic or felt sheets, paint-on coatings, and moisture-inhibiting. B. Get tips on working on flooring under various types of conditions with help. When all layers above the V-Force. Atticare encapsulates your crawl space with a vapor barrier to ensure it stays dry and free of mold, mildew and rot. For example, in a pressurized building under normal heating or cooling conditions, the moisture transported through a 25. Clean up low hanging ductwork, pipes, wiring and insulation. 00 / piece Size: 300sqft Color: Green. Costs for complete installation of an encapsulation system start around $2,000-$4,000, average $5,000-$7,000 and can go as high as $8,000-$14,000 or more, depending on the size and condition of. The experts at Groundworks install vapor barriers and encapsulate crawl spaces every day. In fact, in the first eight months of 2022 alone, we repaired nearly 8,000 crawl spaces nationwide. 4 mm Acoustical Underlayment with Vapor Barrier for All Vinyl Plank Flooring. 2. B. 1209 Culbreth Dr. B. This basement vapor barrier will also prevent radon gas from penetrating the slab, an added benefit. PANGO® WRAP TERMITE/VAPOR BARRIER INSTALLATION INSTRUCTIONS P3 of 3 BEAST® CONCRETE ACCESSORIES - VAPOR BARRIER SAFE BEAST ® HOOK is a faster, easier way to set 2x4 overhead screeds. 6 lb. A vapor retarder is a material that reduces the rate at which water vapor can move through a material. You can buy a barrier separately or get underlayment with a moisture barrier built-in. Air Barrier Installation Detail: Interior Insulation Dam. The concrete foundation of your building may feel rock-solid. Baker’s Waterproofing uses only the highest quality vapor barrier materials and installation methods to ensure a fast and effective installation. Love it! My only regret was using both the sentinel underlayment and a 6 mil vapor barrier on top of concrete. installation of vapor retarders. Stego Installation Support. 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. 00 per sq/ft and rise to $4. This standard is used to measure the perm rating of vapor barriers. The document has moved here. This heavy duty 60 yard roll of moisture resistant crawl space vapor barrier seam and seal tape is highly durable, waterproof and weatherproof. The HPU shall be remotely located at a standard maximum distance of 100 feet (30. Using a combination of Vapor SentinelTM barrier and tape, all penetrationsVapor barriers and crawl space encapsulation help maintain a healthy home environment. Step 1: Gather necessary materials. Color: Gray. 6” (15 cm) of release film. Unroll 1st piece of vapor barrier along one edge of floor. Keep in mind, residential foundation characteristics can vary by region and project, but termination points usually include the perimeter of the slab placement area, like at a concrete stem or basement foundation wall. $169. How did this project turn out? WATCH HERE: the easiest way to seal u. One tactic you can use is to use multiple vapor barriers in construction. It is designed for use on all grades of the home or commercial property—below, on, and above grade installations. Mounting Mount the Silence Sentinel® Basic where it will be visible and rear panel accessible. 49. BEST FOR SOUND INSULATION: Roberts 70-193A Super Felt. I understand that tyvek is not a. Plastic on the outer surface of a wall in cold weather could cause problems. Average Price Per Square Foot: $2. Soil gas and moisture control. ft rolls. A secondary water control layer is often found against the structure, behind or below the exterior insulation. Basic Vapor Barrier Installation Instructions Step 1: Preparation Correct any drainage issues. We used Farm Supply brand 6 mil reinforced string solid white vapor. BEST. 1-877-464-7834. . This estimate includes materials and labor. 2910 Griffith Rd. says it can be installed without any underlayment. Do not pound form stakes through the vapor barrier. A vapour barrier can act as a very. However, foam insulation has higher R-values and forms an air barrier, which can eliminate some of the other costs and tasks associated with weatherizing a home, such as caulking, applying housewrap and vapor barrier, and taping joints. For additional information, please contact us. Moved Permanently. We are your trusted partners in new construction technology. An example of this are self-adhered modified bituminous membranes and sheet polyethylene which can be used as both an air barrier and a. Especially if you have concrete subfloors. ft roll): This 3-in-1 underlayment can be used under any laminate flooring to allow your floor to float and create a moisture barrier. The perimeter of a home is found by adding all of its sides together. 99 $189. 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. Any gaps greater than 1/2" requires backer rod and caulk. Cut holes in the barrier for electrical outlets, pipes, windows, and so on. Overlap the seams by no less than 12 inches and secure them together with the poly PVC tape. It also protects flooring from increased moisture levels and is used as a component of radon mitigation systems to protect indoor air. Home Vapor Barriers: Removal, Replacement, and Cost Sentinel has been in the crawl. See installation instructions and warranty information for. If you just need a basic, serviceable shower, pre-fabricated shower units made of acrylic or fiberglass install quickly, are usually reasonably priced, and have no installation waiting periods. It is critical to place vapor barriers on the ground and walls to keep moisture out of the building. Size Of Your Project: Number of pieces. When it comes to temperature, insulating metal buildings is essential because metal is a far better heat conductor than wood. Vapor Barrier Installation. Include window and door openings in exterior. It is incredibly common for homeowners to install a crawl space vapor barrier as a part of a wider waterproofing process. Spray foam insulation is typically the costliest form of underfloor insulation, with the price per square foot reaching $2. PolyFoam PF080400100 Basic Foam Underlayment for Wood & Laminate Flooring, 100 sq ft, White. Class III. And, the barrier is made for good value, is made for easy installation with overlap and it is affordable. This 500 sq. Example #1- Install the dehumidifier in the laundry room and duct it into the living room. Cover the leak with plastic sheeting or a tarp to redirect water away from the interior. . Cut the sheets to size, allowing 6 inches or more along walls. The Silence Sentinel® Basic may be set on a desktop, mounted on a wall or option-Air barriers restrict airflow (and the water attached) through a material. Abstract. The result is a system that effectively stops, collects, and exhausts radon. Follow these steps to properly prepare the concrete surface: Clean the Concrete: Start by sweeping the concrete floor to remove any loose dirt, dust, or debris. Center seaming tape over small hole (s) or slice (s) in the vapor barrier. Vapor barrier material costs: The cost of 6 mil plastic sheeting ideal for use as a vapor barrier costs just $0. SKU. 3M acrylic adhesive technology allows for primer-free application from lightweight rolls that saves you up to 40% on installation time. The roof membrane on the "top" is clearly a vapor barrier. A vapor barrier basically helps to prevent moisture from entering your home through the. OptiMax sells for $3. ROBERTS Moisture Barricade is an underlayment film manufactured to be used with flooring underlayments to protect against moisture when installing laminate and engineered wood flooring. 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. CertainTeed Volu-Matic 200 insulation blowing machine - side view. 85-ft x 1. CALI. Also, a special type of tape seals all of the seams between the sheets of vapor barrier. INSTALLATION SUB-SLAB: Vapor Sentinel TM 10-Mil Vapor Barrier is unrolled over an aggregate, sand, or tamped base. If any of the conditions cited above pose a problem for the typical installation of Vapor SentinelTM Vapor Barrier,. Sentinel adhesive primer acts as a vapor reducing moisture barrier. Stego Installation Support is a no-cost service designed to help achieve an effective installation and add value for project teams. a coder a coder. Vent 5-10 feet above roof or ten feet higher than ground surface if not. Once your first row is complete, start on the next row. 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. Installation:Floating, Glue-Down and Nail-Down Flooring Delta Rating: 22 Thermal. a. Installation Protect adjacent surfaces and areas not scheduled to receive air barrier products. Once your subfloor is inspected, repaired, and prepared, you are ready to start your installation. We have housewrap outside the exterior plywood sheathing and will install 1" rigid foam prior to a rain-screen and then Hardie siding. The membrane brings together the. mold proof and vapor-resistant; Installation on walls, showers, countertops, and tub surrounds; Lightweight but strong, easy to handle. A basement vapor or moisture barrier is installed during the new construction of a home or the remodeling of a basement. Winston-Salem, NC 27103. 2. 50 to $0. ) square hole can be up to 100 times greater than the amount of vapor diffusion through a 1220 x 2440-mm (48 x 96-in. The cost of installing a vapor barrier depends on the type of vapor barrier, measurements of your crawl space, and other materials or tools. Large Blowing Machines. For a FREE no-obligation crawl space repair cost estimate in Salem, OR, please fill out the form and. All seams overlap a minimum of 6 inches for taped-seam installation and 3 inches when seamed via heat welding equipment by a qualified contractor. Looks like it's FG batt with facing, and the facing serves as vapour barrier. An adhesive reduces its tendency to settle. The Institute for Research in Construction (IRC) at the National Research Council (NRC) lists the five basic requirements for an effective air barrier as being: 1. Some supports come with wide bearing pads. Safe Handling Precautions Practice good housekeeping and personal hygiene and always wash hands after handling the product. In every side of a building envelope, we are trying to create environmental separation and control the movement of four things: liquid water, air, water vapor, and thermal energy (heat). 35 – $4. The bidding for this auction will close on Tuesday on the specified close date starting at 2:00 PM or 7:00 PM. per roll, Moisture Barrier eliminates the hassle of dealing with a giant sheet of folded plastic. When it comes to vapor barriers, a true one has an impermeability value of 0. When installing this product, contractors shall conform to all applicable local, state and federal regulations and laws pertaining to residential and commercial building construction. Good for: Retrofit work, attic insulation. ', Royal Blue (Pack of 3). S. ”. Roberts Black Jack has a 4″ attached overlap and adhesive strip to make installation a breeze. Vapor 3-in-1 Underlayment Silver (100 sq. Zip code: 23917. This video demonstrates how to install a moisture barrier over a concrete subfloor. In most U. ft. Calculate my square footage. A 6 mm thick vapor barrier might cost about $0. Crawl under your mobile home by entering through the skirting. A 6 mm thick vapor barrier might cost about $0. Class I barriers don't allow any amount of moisture to get through. See installation instructions and warranty information for more guidance. 6-mil vapor barrier roll. 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. 00 for the materials (stakes for securing the. AVAILABILITY & COST Vapor Sentinel 10-Mil Vapor Barrier is available directly through. 154 Results. Formulated from top-quality polyethylene (polyolefin) resins. By frequently running quality assurance and control tests, a manufacturer can ensure they continually deliver the expected level of performance –that whatever. Insulation Labs is a name to reckon with for efficient vapor barrier installation services. Signs That Your Home Needs a Vapor Barrier. If you're looking for something more affordable, we recommend Dekorman 2-N-1 Moisture Barrier 2mm Blue Foam Underlayment because it is easy to install and resists moisture damage, mold, and mildew. Seal the edges of these cut areas with a sealant. Vapor Barrier. (xiii) Vapor stop shall extend a minimum of 50mm from insulation termination point. Install a sump system if needed. Rot to your ceiling and walls. ft. 1. Remove Debris. The conventional approach is to install a vapor barrier over the slab. Our MoistureBlock is a 6 mil polyethylene film vapor barrier that is used during the. What Is A Vapor Barrier? A vapor barrier is a thin layer of impermeable polyethylene sheeting that prevents moisture from seeping through your basement or crawl space walls (and floors). Next cut out around the electrical boxes enough to allow you to once again use the tape to seal the poly to the vapour boxes. Concrete walls should have any void areas filled and any fins, mortar joints or screws should be flush with the wall. explains that vapor barriers are classified into three categories: I, II and III. x 84T piece. Before installing a vapor barrier, it is crucial to ensure that the concrete floor is clean, dry, and free of any debris. 70 per square foot. Vapor Barriers. 00 Perms IMP. Installing a. 6 mil reinforced vapor barrier. Quantity of pieces. A discontinuity in our slab/flooring/vapor barrier system. Your. Installing a physical termite barrier is a very similar process to that of a below-slab vapor barrier or retarder. Simply leaving off plastic or other low permeance vapor barriers will not avoid problems, because interior water vapor will migrate outward. Water vapor can enter a basement or crawlspace by evaporating from the interior surface of a damp wall or slab. , Silver Chrome (pack of 1) Easy installation with overlap and adhesive strip › See more product details Purchase your 6 mil vapor barrier from a local home improvement store or online retailer. 50 a square foot, or $375 to $2,250 for a 1,500 square foot space for multiple vapor barriers. Nucore is Floor and Decor’s exclusive in-house vinyl plank flooring brand. Continuous: no gaps, cracks or openings. 4a); Pango Wrap and Pango Tape (Fig. 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. First introduced in the U. Most of the barrier. A vapor barrier, also known as a moisture barrier, prevents water from traveling up from the soil, and from there onto the walls or ceilings of the crawl space. The JES CrawlSeal™ Encapsulation System eliminates moisture in your crawl space, discourages insects and rodents, and makes your home a healthier place to live. The attached vapor barrier is specially designed for an optimal bond with adhesives for easy installation. Installation of Stagestep Vapor BarrierRestricts migration of soil gases such as radon and methane. Application Firestone V-Force™ Vapor Barrier Membrane can be installed at temperatures as low as -4 °C provided that it has been stored in a heated area so that it will be at a temperature between 10°C and 35 °C during application. Refer to adhesive label for moisture limits of the adhesive. You’ll always know your mitigation systems are performing correctly and building occupants aren’t being exposed to harmful VOCs. Best Practice Installation Techniques. When building a. 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. Winston-salem / High Point Location. 2mm thick, available in 100 sq. *The Small Hydraulic cylinder access cover should be on the secure side * As shown in picture 3 – Sentinel Placement Install the Sentinel Anchor Bars on the front of the frame We would like to show you a description here but the site won’t allow us. Controlling water vapor movement in homes is essential. Measure and cut a piece of the vapor barrier to cover the damaged area 6” in all directions. 99 / piece Size: 10in. Vapor barriers restrict the flow of water vapor (diffusion) through materials. The vapor barrier is a thin layer of plastic installed on top of the wooden frame enclosing most wine cellar applications. Install was not to bad easy to unroll but help to have a second person in large rooms to keep everything lined up. 99 (124) Rated 5 out of 5 stars. The three-part system works together to create a gas-permeable layer with a simplified installation process – saving you time and money. Average Cost of Vapor Barrier Installation. by MP Global Products. A. 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. 2mm thick comes with vapor barrier,overlap and pre-attached tape for easy installation ;. Vapor 3-in-1 Blue underlayment is the most budget friendly option of all vapor barrier underlayment. Encapsulation of a crawl space includes. The key point that needs to be made is that although air barriers are a good idea everywhere, vapor barriers are not. It is recommended to use Sentinel Protect Plus Underlayment for optimal sound absorption and moisture resistance or a standard vapor barrier like 6mil PE Film. 00 per sq/ft and rise to $4. The yellow plastic film should face the subfloor and the overlap should be on the opposite. change location.