If project specifications call for. As a second line of defense, the system allows for simple and easy mitigation system installation if the need arises. Labor tasks - Layout, fabricate and attach plank fiber cement siding (6" width) over vapor barrier. Easy installation: They are typically available in rolls, making them easy to handle and. A. 5mm foam with attached vapor barrier. 70 per square foot, depending on the materials used during construction and the barrier thickness. Include window and door openings in exterior. Love it! My only regret was using both the sentinel underlayment and a 6 mil vapor barrier on top of concrete. When it comes to vapor barriers, a true one has an impermeability value of 0. So that’s the background. SOPRASEAL LM 202 VP is a one-component spray applied vapor-permeable air barrier membrane used in wall construction. 50 per square foot on average. A 6 mm thick vapor barrier might cost about $0. Install a sump system if needed. 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. Do not fasten the subfloor through the floor assembly. Its excellent R-value helps keep the floor more comfortable. 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. Vapor barriers in new home in North Okanagan, BC Canada. Crawlspace Challenges for the Southeast. Sentinel 10in. Follow adhesive label application instructions. Keeps moisture out; For use under all floating flooring; Includes an adhesive strip for overlap;. 26. 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). Vapor Barrier Installation. 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. If water vapor diffuses or infiltrates into the wall cavity and finds the cool surface, moisture problems can occur. No need to bother with large fold. Moisture can cause serious problems in homes, including rot, mold, and mildew. A vapor retarder is defined as a material or system that adequately retards the transmission of water vapor under specific conditions. Proven durability. In addition, you’ll need to buy tape to secure the vapor barrier, which usually costs around $50 for a 4-inch-by-180-foot. Rigid air barrier materials for use behind showers and tubs include fiber-cement, fiber-reinforced gypsum, glass mat. View Specifications. It also has the ability to provide you increased energy. change location. Vapor Barriers provide additional protection between the subflooring and flooring by preventing the emission of vapors and moisture to the inside of the home. AVAILABILITY & COST Vapor Sentinel 10-Mil Vapor Barrier is available directly through. Once your first row is complete, start on the next row. This can be attached with staples beneath the rafters or trusses on the inside. Water vapor will always move from a higher partial water vapor pressure environment -- a function of temperature and relative humidity -- typically found below the. Secure the edges of the vapor barrier to the concrete using tape or staples. 2. A moisture barrier for hardwood floors can be as simple as a roll of plastic sheeting. (may be higher, check job specifications or building codes) 4. Rather than trapping moisture, this semi-impermeable vapor barrier, allows moisture to slowly dissipate through the flooring without mold. . Cut the sheets to size, allowing 6 inches or more along walls. A vapor barrier is intended to keep water vapor or water molecules from passing through the barrier. View All Locations. These. Sentinel Underlayment Installation Instructions. 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. Wrap vapor barrier up edge of wall 3-4 inches and tape to wall. Vapor 3-in-1 Blue underlayment is the most budget friendly option of all vapor barrier underlayment. Step 5: Seal any seams or gaps. Check out Figure 1. It is designed for use on all grades of the home or commercial property—below, on, and above grade installations. 3in1 Blue Vapor Barrier Underlayment is universal and affordable. Step 4: Attach the vapor barrier to the walls. Size: 120sqft. Unroll one width of the 2in1 Vapor Underlayment. Step 6: Install the flooring over the vapor barrier. The cost of strong vinyl tape for securing plastic at the edges and for taping sheeting. air gap between the back of the siding and the felt. Vinyl. Sound Absorbing. Because of these gaps, water vapor. 2. Consult local building codes prior to installation and to determine the length to cut barrier. 25 and $1. We would like to show you a description here but the site won’t allow us. Barritech VP may be installed down to 20°F. See installation instructions and warranty information for more guidance. Foam insulation products and installation usually cost more than traditional batt insulation. The concrete foundation of your building may feel rock-solid. Make sure the subfloor is level, clean,. Economical mitigation strategy. to 3⁄4-in. Finally, unroll the vapor barrier and press it firmly onto the concrete floor. completed a minimum of 3 days prior to air barrier installation. The most common is paper-faced insulation. Water Control is managed by the roof membrane and the cladding. This 2-in-1 underlayment is a 2. This sub-floor barrier slows moisture migration and helps prevent buckling, cupping, and cracking. 6 lb. It sounds a little squishy when walking on it. Make sure downspouts are directed away from the home and there is a proper grade. Please visit the DiamondBack™ Product Page for more details. It also protects flooring from increased moisture levels and is used as a component of radon mitigation systems to protect indoor air. 85-ft x 1. Refer to adhesive label for moisture limits of the adhesive. 4 mm Acoustical Underlayment with Vapor Barrier for All Vinyl Plank Flooring QuietWalk Luxury Vinyl is a 360 sq. installation process, the New Construction System saves installation time and costs. Each row should have no gaps in joints. Vapor barriers aren’t really what they seem to be. Improve this answer. Thoroughly mix. Air & Vapor Barrier Laminated Boards; Air & Vapor Barriers. The function of a vapor barrier is to retard the migration of water vapor. A secondary water control layer is often found against the structure, behind or below the exterior insulation. Best Practice Installation Techniques. Silicone Vapor Shield (SVS) is the best-rated underlayment paper for moisture protection of hardwood flooring over plywood or OSB subfloors. 08 to $0. The experts at Groundworks install vapor barriers and encapsulate crawl spaces every day. 100% waterproof, pet-friendly, scratch, dent, and stain resistant, Nucore LVP comes in three collections: Nucore, Nucore Performance and NuCore Whispercore. * Common home footprints have 6 - 12 corners; complex home footprints have 12+ corners. 006 Film Barrier Installation Methods • Floating Floors For Use Under • Hard Surface Flooring. 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. of foam or mineral-wool board against the concrete. 5-mm Premium Cushion Flooring Underlayment (100-sq ft /Fan fold) Model # 1102002500. 49. To DIY-install a vapor barrier into crawl spaces, clean the space, layer butyl tape with a plastic vapor sheet, then pull the sheet to the bottom of the space. The vapor barrier is the most crucial element in crawl space encapsulation projects because it blocks humidity and moisture from coming into contact with the underside. IMPORTANT: ALL PENETRATIONS MUST BE SEALED. An example of this are self-adhered modified bituminous membranes and sheet polyethylene which can be used as both an air barrier and a. Vapor Sentinel New Construction Systems eliminate the need for costly trenching and aggregate backfill with its stronger-than-concreate gas-permeable layer. Do not pound form stakes through the vapor barrier. This is an internet-only auction. 8; No vapor barrier is needed if packed to a density of at least 2. FEATURES & BENEFITS MOISTURE PROTECTION 6 mil reinforced vapor barrier. Good for: Retrofit work, attic insulation. Consequently, a vapor retarder in a roof assembly is also acting as an air barrier. Installing vapor barriers may not completely shield the house if there are cracks and holes in the walls. Measure and cut a piece of the vapor barrier to cover the damaged area 6” in all directions. /cu. Also, a special type of tape seals all of the seams between the sheets of vapor barrier. (xiii) Vapor stop shall extend a minimum of 50mm from insulation termination point. Step 1: Site Review, Site Conditions, and Prep. Common methods include stapling the barrier to the studs, taping the seams, and ensuring a proper overlap. 154 Results. 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. In homes with dirt basements, they poured a concrete floor or installed a vapor barrier. Unroll the vapor barrier and lay it over the concrete surface you wish to protect. Finally, unroll the vapor barrier and press it firmly onto the concrete floor. • 3M™ Air and Vapor Barrier 3015 adheres to most common building materials. There are multiple types of vapor barriers, each ideal for different kinds of surface flooring. In the hallway I only used the underlayment and it's much quieter. Suitable for all types of subfloor including cement subfloor. Average Cost of Vapor Barrier Installation. Looks like it's FG batt with facing, and the facing serves as vapour barrier. Make sure this fits by entering your model number. 70 per square foot. Next, to prevent cold air from entering the crawl space, install R30 Fiberglass insulation into the bond cavity. It’s worth noting that the thicker material your vapor barrier has, the more costly it will be. 100% reinforced. Flooring moisture barriers are placed beneath the floor’s underlayment. The barrier serves to keep moisture out of the room and helps to control humidity levels. The average installation time for a complete basement vapor barrier system is 1-2 days, depending on the size of the basement, the extent of any damage, and other necessary repairs. MoistureBlock™ is a low-density polyethylene film that can be used during the installation process where additional moisture protection is needed. , Silver Chrome (Pack. 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. 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 vapor. Drill a hole in one end of each elbow large enough to fit the quick link through. Contemporary landscapers also use vapor barrier paints and coatings at the time of drywall repairs. Vapor barriers restrict the flow. In fact, it is almost a "perfect" vapor barrier. MOISTURE. With quick and easy installation, its the perfect floori. Check with the flooring company and your contractor to make sure you have an appropriate vapor barrier, if one is required. Concrete, however, is, in fact, a porous material. 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. Plywood subfloors: A breathable foam-type underlayment is generally used when installing laminate flooring over plywood or OSB subfloors. 49. Superior material conditioning. Avoid foam insulation that is faced with foil or plastic, to allow for some drying to occur through the foam. Learn how to properly install StegoHome Below-Slab Protection to protect against water vapor and soil gases like radon in your next home building project. Check the vapor barrier for any signs of tears or rips. I recommend a minimum 10-mil-thick polyethylene material, even if your local building code allows a 6-mil, as it lasts longer and is less prone to punctures. Any distance greater than 100 feet (30. 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. We’re proud to serve customers in the San Francisco Bay Area, Los Angeles and New Jersey. Stego Wrap Vapor Barrier will help remove the risk of water vapor accumulation and the transmission of various soil gases. It’s not a sealed system which means moisture can go under or around the vapor barrier and still get into your crawl space. It doesn’t let water or vapor through. However, the degree by which each moves, and level of control (i. By Mark Robins. Installation:Floating, Glue-Down and Nail-Down Flooring Delta Rating: 22 Thermal. By using a vapor barrier, builders can help to prevent these problems. Gather Your Materials. With our vapor barrier installation services, there will be no issue of the crawl space of your home becoming a residence for pests, bats, and rodents. Using a combination of Vapor SentinelTM barrier and tape, all penetrationsVapor barriers and crawl space encapsulation help maintain a healthy home environment. The seams must be sealed with tape and the edges of the foil should overlap a little (a few inches). Most condo and apartment associations will specify certain Sound Transmission Class (STC) and Impact Isolation Class (IIC) ratings when it comes to installing underlayment and flooring. For example, let’s say a single wide is 16 feet wide and 72 feet long so I would add: 72 + 72 + 16 + 16 + 12 + 12 = 200 feet. The latex paint allows the ceiling to breath a bit but. Safe Handling Precautions Practice good housekeeping and personal hygiene and always wash hands after handling the product. ’. BEST FOR SOUND INSULATION: Roberts 70-193A Super Felt. Average Cost of Vapor Barrier Installation. Premium vapor barrier. Step 4: Install Underlayment. VYCOR® enV-S™ represents the next generation of weather resistive barriers and is designed to provide superior weather protection, and improved energy performance. 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. Developed for use as a durable vapor retarder. Throughout this post, we’ll explain the step-by. ft. Make sure it is of the right size for your basement – 2 feet wide by 3 feet long is ideal. Pull the barrier tight to prevent air leaks. Use an ordinary staple gun to secure these flanges to the sides of the studs, making sure to leave a 1⁄2-in. Vapor Barriers – According to the International Energy Conservation Code (IECC), a vapor barrier is: “A vapor-resistant material, membrane or covering such as foil, plastic sheeting, or insulation facing having a permeance rating of one perm (5. These boards are resistant to water, moisture, and humidity and have good insulation properties. Measuring the perimeter of a mobile home is simple. Step 3: Measure and cut the vapor barrier. 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. Beginning at one side of the crawl space, lay down 6-mil or thicker polyethylene plastic over the entire crawl space. RUNNER-UP: QuietWalk Plus QW100PLUS Underlayment. The conventional approach is to install a vapor barrier over the slab. ft. Vapor barrier installation could cost anywhere from $1,200 to $4,000 on average. Building occupants, certain appliances, plants, and plumbing equipment generate moisture that is carried in the air as vapor. per roll, Moisture Barrier eliminates the hassle of dealing with a giant sheet of folded plastic. When rolling out the moisture barrier you want to go from wall to wall and cover the entire floor. It doesn’t let water or vapor through. Formulated from top-quality polyethylene (polyolefin) resins. Baker’s Waterproofing uses only the highest quality vapor barrier materials and installation methods to ensure a fast and effective installation. • Do-it-all underlayment provides complete moisture and vapor protection for all flooring types in floating installations. 100% waterproof, pet-friendly, scratch, dent, and stain resistant, Nucore LVP comes in three collections: Nucore, Nucore Performance and NuCore Whispercore. 2. Example #1- Install the dehumidifier in the laundry room and duct it into the living room. When installing a vapor barrier, it should be placed against the concrete surface before insulation, wood framing, or any finishing. , wet lumber, cast-in-place concrete, etc. When building a. 99 / piece Size: 10in. 50 per square foot; the cost variation is based on the thickness of the sheet. Methods Used to Determine Vapor Retarder Effectiveness 8. . Abstract. Types: 30-pound asphalt-coated paper, bitumen-coated kraft paper, plywood, vapor retarder latex paint 0. 7 All surface area covered with 3M™ Air and Vapor Barrier. Dry-Tek Environmental offers a helpful guide to installing a vapor barrier in your crawl space, including the necessary tools and materials. installation of vapor retarders. While underlayment is not necessary for laying vinyl plank flooring, it can provide a lot of helpful benefits. The higher the rating, the more effective at limiting sound. This paper describes the. . 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. Vapor Barriers We use high performance plastic sheeting products used in everyday. Most condo and apartment associations will specify certain Sound Transmission Class (STC) and Impact Isolation Class (IIC) ratings when it comes to installing underlayment and flooring. This heavy duty 60 yard roll of moisture resistant crawl space vapor barrier seam and seal tape is highly durable, waterproof and weatherproof. Otherwise, hiring a professional is best. The Amerique sentinel basic vapor barrier is perfect for wood, bamboo and laminate floors. LifeProof also features an easy to install fanfold design with printed cutting grid making it easy for DIY projects. ft. (xv) Vapor barrier sheet shall be installed without gaps or folds with 50mm overlap. ASTM E283. 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. For holes in our vapor barrier to be an advection concern, we need both: 1. And the membrane on the "bottom" is also a vapor barrier. All seams overlap aClass II – These vapor and moisture barriers are semi-permeable, allowing some moisture to pass through (greater than 0. 00 per sq/ft and rise to $4. 6. Stego Installation Support is a no-cost service designed to help achieve an effective installation and add value for project teams. 2. Average costs and comments from CostHelper's team of professional journalists and community of users. ). This six-minute video provides everything you need to know to properly install Pango® Wrap Termite/Vapor Barrier below a concrete slab. It is ideal for use with laminate flooring with pre-attached underlayment. Also insure that the wedge barrier is set so that the wedge is facing the proper direction *The wedge opens to the attack side. Pre-fab units work well if you don't mind sticking with predetermined sizes and styles. Firstly, the vapor barrier should always be installed on the warm side of the wall. Note – legal. We used Farm Supply brand 6 mil reinforced string solid white vapor. In the winter, however, my home's interior humidity would condense on an exterior vapor barrier. S. Plastic or polyethylene is a vapor barrier. Vapor Barrier Installation Basics. Most homeowners opt for batt insulation, which costs between $1. 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. Yes Show MoreStep Seven: Insulate the Bond. 2 Cold Insulation Procedure for Equipment:vapor intrusion is most likely to be a problem. This will cause laminate floor problems such as cupping and gaps. This basement vapor barrier will also prevent radon gas from penetrating the slab, an added benefit. CrawlSeal™ Encapsulation System is the Protection You Need. In fact, it is advertised as 100% vinyl free flooring with no PVC. How did this project turn out? WATCH HERE: the easiest way to seal u. 15 to $0. Efficient and flexible installation. CALI. The document has moved here. This underlayment is with a 0. AVAILABILITY & COST Vapor Sentinel 10-Mil Vapor Barrier is available directly through. 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. A low vapor diffusion material for the vapor barrier itself. Type. Vapor barrier installation techniques vary depending on the type of insulation and the climate you live in. up the wall and fasten it there. Vapor barriers prevent moisture from moving from areas with a lot of moisture to areas with less moisture. Most of the barrier materials used in the construction industry are vapor or moisture diffusers or retarders. A wall system should have one vapour barrier, but can have many air barriers. Install was not to bad easy to unroll but help to have a second person in large rooms to keep everything lined up. Tips for concrete floor vapor barrier installation: 1. Soil gas and moisture control. 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. INSTALLATION SUB-SLAB: Vapor Sentinel TM 20-Mil Vapor Barrier is unrolled over an aggregate, sand or tamped base. . • Helps protect your floor against moisture. Determining what works best for you,. Impermeable to the leakage of air. Its proponents believed in sealing the joints of PE sheets to create a dual-purpose material ascribing the additional properties of air infiltration control to the already popular ‘6-mil poly. Building code requirements for interior vapor barriers (or vapor retarders) have a sad and shameful history. The presenter is using 6 mil thick poly barrier. Vapor Barrier Installation. Project Source. Simple system activation. 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). x 84T piece. Example #2- Install the dehumidifier in your crawl space with the remote mounted in your garage. This underlayment protects floors with quality moisture protection while offering basic soundproofing;. explains that vapor barriers are classified into three categories: I, II and III. 15 mil thickness. 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. In a typical commercial building or home, vapour barriers or vapour diffusion retarders can improve. Ft. By frequently running quality assurance and control tests, a manufacturer can ensure they continually deliver the expected level of performance –that whatever. Industrial Strength to Insulate Any Space. Contact us. Before installing the systems in 2007, EPA sealed cracks in basement walls and floors, and covered sump pits. Dekorman’s Sound and Moisture Barrier Foam Underlayment (200 sq. A vapor retarder is a material that reduces the rate at which water vapor can move through a material. 85-ft x 1. 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. 15 a foot or $160 to $200 for a 1,200. B. This is a definite 2 person job. Winston-salem / High Point Location. 12 (8 to 12 cents) per square foot. Our MoistureBlock is a 6 mil polyethylene film vapor barrier that is used during the. $132. Waiting a few hours will pay dividends for years. Color: Gray. The attached vapor barrier is specially designed for an optimal bond with adhesives for easy installation. Vapor Sentinel Vapor Barrier SAFETY SHEET MANUFACTURER Vapor Products Group W51N535 Struck Lane Cedarburg, WI 53012 USA. ft. Throughout most of the year, the pea gravel is damp. The insulation (fiberglass or cellulose) is then placed on top of the drywall with no vapor barrier above or below. For those with vapor barrier installation experience, the following may be review, but as. This helps prevent problems like mold and condensation in buildings. Of all the things you can do to maintain a healthy crawl space, a high-quality crawl space vapor barrier could be one of the most important ones. The attached vapor barrier is specially designed for an optimal bond with adhesives for easy installation. 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. Sentinel 10in. For a FREE no-obligation crawl space repair cost estimate in Salem, OR, please fill out the form and. The basic answer is no, but you might want it anyway. Installation of Stagestep Vapor BarrierRestricts migration of soil gases such as radon and methane. *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. Following installation, each depressurization system was tested to ensure that it worked properly. This American made crawl space liner is the basic string reinforced vapor barrier that can be compared to most other brands on the open market for the same stated thickness, 10 Mil. This underlayment also has a pre-attached vapor barrier to protect floors from moisture escaping concrete subfloors. It adds cushioning for extra comfort underfoot,. 00 per sq/ft and rise to $4. Vapor barriers have perm ratings. We have housewrap outside the exterior plywood sheathing and will install 1" rigid foam prior to a rain-screen and then Hardie siding. roll measures 3 ft. Water Barrier vs. In theory, it sounds like a great idea. ', Royal Blue (Pack of 3). It features a 9 mil thick poly film, backed by a synthetic rubber adhesive, that is used for binding the seams of a moisture barrier when encapsulating a crawlspace. Color: yellow. We built a home with 2 X 6 stud walls, fibreglas insulation and polyiso spray foam around vents and critical areas. OptiMax sells for $3. This non-flammable vapor permeable air barrier provides moisture protection behind wall claddings such as brick,. Use special sealing tape to join sheets if polyethylene sheets are being used. Easy for me, then. Any gaps greater than 1/2" requires backer rod and caulk. See On Amazon. 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. Although crawlspace vents were originally designed to facilitate humidity exchange with the outside air, they may contribute to mold. Learn More. Review product technical data and expiration dates and proceed accordingly. Support our channel if you find our content valuable This video reveals how to make and install a 6 mil poly waterproof plasti. Non-toxic, zero VOC, recycled vapor barrier for hardwood flooring. 3. The HPU shall be remotely located at a standard maximum distance of 100 feet (30. See installation instructions and warranty information for. 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. Nucore is Floor and Decor’s exclusive in-house vinyl plank flooring brand. Get tips on working on flooring under various types of conditions with help. For example, a basic vapor barrier will not provide extra padding. Once installed, tile can be applied directly on top. Learn More. ®Install Stego ® Crete Claw Tape. A discontinuity in our slab/flooring/vapor barrier system. Slide the PVC pipe onto the black threaded plumbing pipe (start at end without the elbow attached). On/Off (Power). The hose manufacturer’s factor of safety. Large Blowing Machines. There are three basic mechanisms that explain moisture accumulation in basements: Water can enter a basement or crawlspace in liquid form—through cracks in the walls, cracks in the slab, or the crack at the perimeter of the slab. Fold the release film back on to itself carefully, leaving approximately 6" exposed.