Vapor permeable: greater than 10 perms. What I want to do. Advanced Building Products has taken the traditional furring strip and re-designed it to function in the modern building environment. Stops air movement through walls to help provide a more energy efficient home. Importers for this supplier for the last 12 months. Reduce household drafts and make your home insulation work better with TYVEK HomeWrap 9 ft. Model # 01-0305 Store SKU # 1000177959. It is also referred to as PE or poly gas pipe. Poly Wall® Building Solutions manufactures a market leading line of waterproofing and air barrier membranes designed to enhance the integrity of your structure. Top Importer. . Horizontal seems should overlap at least 2 inches and vertical seams a minimum of 6 inches. The filled bags were kept inside poly house in groups in such a way that one person can easily sow the seeds and work. 2x4 2x6 1/2" drywall + paint kraft paper w/ tabs 6 mil poly (sealed) latex paint R-8 fiberglass batt R-20 friction fit batt 3/8” plywood 1/2" OSB 1/2" OSB + 1 1/2” DOW XPS 1 layer 30 minute paper Tyvek Tyvek Drain Wrap under Lathe Paper 2 layers 30 minute paper Tyvek Drain Wrap on OSB Lathe Paper on XPS. for pricing and availability. Cut a couple of one-by-twos to the width of each section of the chicken coop that you want to cover, one to attach the film at the top and one at the bottom. That’s why the best time to address insulation is in the design phase, before construction begins. Decided that the unit was under heat stress. Before the Board, at the oral argument, Owens Corning discussed covering sheets such as plastic "house wrap," and a Board member specifically asked about "Tyvek. Oks Poly Co. People often use wraps to cover the interior and exterior of cars, but you can use them to customize countless other items. You should leave about an inch around the edges. A metric perm is defined as 1 gram of water vapor per day, per square meter, per millimeter of mercury. The world's leading house wrap has the optimum combination of properties to deliver the best balance of weather protection, moisture management and, durability behind residential facades. 1 perm. : Shandong 09040748. 4" and 6" widths also available. It meets AAMA 711 Standards, with features such as nail sealability and high performing adhesion without primer needed. It should also be simple to install. Choose from a. 0 perms or less and greater than 0. Cover it with plastic wrap to preserve aromas and then place it in the microwave for 15 seconds. All of our products can be removed and are non-permanent. 392690 - Articles of Plastics, Nesoi; 630493 - Other Furn Art NT 9404 Nesoi NT Kt/ Crochet Syn Fib;A simple approach that works well is to add a spline of asphalt felt paper at outside corners that extends 6 in. Scenario 3: plastic on the outside, cold weather. Protection from the Ground Up (833) 261-6501: Order By Phone M-F, 7:30am-4:30pm. Reduce household drafts and make your home insulation work better with TYVEK HomeWrap 9 ft. ft. Reduce household drafts and make your home insulation work better with TYVEK HomeWrap 9 ft. /100% POLYETHYLENE SAME. A house wrap is a material that covers the exterior sheathing of a house. The 20 ft. If you choose to install house wrap with rigid foam, generally, it should go under the insulation, not around it. Date Supplier Customer Details 43 more fields 2022-05-10 Oks Poly Co. In the U. This is a negligible cost to pay compared to the immense benefits you get from installing the material. 1 heaping teaspoon sugar. Start your project right with our large selection of house wraps and rainscreen for all your building needs. 40 to $0. Add house wrap, a plastic covering, to help keep water out. It’s a dirty job so be prepared. 875-in x 165-ft Housewrap Tape in the House Wrap Tape department. 2K+ bought in past month. Structural closed cell spray foam enhances performance. Head Office: (1-55, Woram-Dong) 50 Gil35, Seong Seo-Ro, Dalseo-Ku, Daegu, Korea Tel:+82-53-582-1175~7 Fax:+82-53-582-1178 China Factory : Haibin Industrial Zone Jiaonan City, Qingdao ChinaMake sure to perforate plastic bins before installing them to allow water to seep through. asphalt. My house is 2 years old with vinyl siding and I HATE it (wind noises). 766 total shipments. Make sure to wear protective gear such as goggles and a face mask so you don’t inhale the old insulation particles. 5. Cover with plastic wrap; place in refrigerator 1 hour. Find My Store. Clear Plastic Drop Cloths (6-Pack) DCHD; Buy BEHR 1 gal. Scott Lumber Packaging XXXXXXXXX XXXX XXXXXX Bill of lading: 2022-10-16 Qingdao Oks Poly Co. - General Multi- Purpose Commodity Tarpaulins- Heavy Duty Tarpaulins- Garden tarp- Domestic and Leisure Covers: Vehicle Covers, Boat Covers, Pool Covers, Sun Screens- Farm & Industrial Covers: Lumber Covers, Hay Covers, Cotton Module, Industrial Covers - Building Materials: House- Wraps, House- Wrap Tapes,. Greenwich BOE OKs $6M for 2 schools, special education How Greenwich police are tackling car thefts, domestic violence Greenwich board OKs $42M more for Central Middle School projectHomeGuard house wrap is an engineered, woven, polyolefin material designed for use as a secondary weather resistive barrier. Environmental Reports Program. beyond the corner boards. Find My Store. 1. South Korea . Properly installed siding is the first line of defense, but sometimes wind-driven rain and. View Product. Tel:+82-53-582-1175~7 Fax:+82-53-582-1178. 26. House wrap is applied to the house structure after the shell has been created and the sheathing is in place. Paint the siding of the shed. Blueskin VP100 combines an engineered film and a patented, permeable. 2018-03-07: 201803039409: OKS POLY CO. ca. house wrap (Figure 3) except the house wrap apron in step 1 is not re-quired, and instead of integrating house wrap in step 5, construction tape is installed above the head flashing (the construction tape acts as counter-flashing). Currently, my wall assembly will be as follows from the inside out: - drywall - poly vapour barrier - 2x6 16in OC stud frame with R24 fiberglass batts in the cavity (still thinking about changing that to Roxul or even spray foam if the cost difference is reasonable) - OSB sheathing - Tyvek. The flange must be sealed to the surrounding walls and flashed to shed water. 99 $ 22. Since the poly creates a tight seal, WA energy codes now require whole house vent fan (or under 1500 sq ft or so) a bath fan on a timer with 3/4" or 1" gap under the bathroom door is specified. And think about how this casual sauna builder has repaired saunas that were insulated properly and sealed off properly 30 years before, and how after opening up walls between sauna hot room and outside, this casual sauna. Bx cables. Drywall panels are used to create interior walls and ceilings. Tel:+82-53-582-1175~7 Fax:+82-53-582-1178. HOUSEWRAP FABRIC, 65GSM(VALUEWRAP PLAIN) ONE SIDED COATED AND UV. 13 XXXXE-MAIL SEA. , Ltd. PVC decking is the relative new kid on the block but is quickly gaining popularity. 0086 perms for a Stego wrap. With 190 affirmative votes, zero negative. While there is debate on the optimal. 24 rolls of. Squirt expanding foam sealant under the threshold to hold it in place and plug any air gaps. , ltd. Hopefully this helped you answer the question. Top Importer. manufacturers and suppliers of housewrap fabric from around the world. Plastic house wrap that significantly reduces the infiltration of outside air; Vinyl siding and trim that provides an additional barrier between indoors and out, and;It will also last for multiple seasons because it’s so tough. 019-inch (0. Overlap the layers shingle-style as you go up the wall—like roofing shingles. Poly plastic. In his paper, “Inward Drive – Outward Drying,” building scientist Joseph Lstiburek identifies the “sweet spot” for the permeance of the house wrap layer as between 10 and 20 perms. One of the most-common mistakes that people do when applying house wrap without the help of professionals is tearing out holes for the windows and doors. …pe lumber wrap oks poly roll width- 81/83/96/100/102 inch roll length- color-oks022-3 weight- 97 gsm roll no. Be sure to pull the building wrap snug and avoid wrinkles and creases. Since the poly creates a tight seal, WA energy codes now require whole house vent fan (or under 1500 sq ft or so) a bath fan on a timer with 3/4" or 1" gap under the bathroom door is specified. Date Supplier Customer Details 43 more fields 2022-11-16 Qingdao Oks Poly Co. Huber zip was a little more last I checked, but it depends on how well I priced it. 0 Rai on Pattanakarn road, Bangkok, this private exclusive. 3. 95. , Ltd. . , Moojin Che, OKS Poly, Puyoung Industry Co. Overview. The ASTM E96 standard requires house wrap with five perms or greater. Building Products Listing Program. An insulated floor over an unheated basement (or crawl space) requires an air/vapor barrier4. 95% open design produces capillary break for moisture draining. ,LTD. 9-ft x 100-ft House Wrap (900-sq ft) Model # 59101. A high-quality WRB is air- and moisture-resistant, permeable, and has high tear strength and UV-resistance. , and Unidesign Co. Model # RXCB351525. 0 at Check Nearby Stores. No one likes to have a higher-than-expected heating or cooling bill. 90. oks019 weight- 97 gsm roll no. Ft) Model # D14377909 SKU # 1000171047. Ensure proper installation for a weatherproof and energy. The purpose of the two barriers should not be confused - the job of the vapour barrier is to control vapour diffusion, the job of the air barrier is to control air leakage. Prep the shed for paint. I am in Climate Zone 6 (on the Atlantic coast of Nova Scotia). Tape up the seams and get back to making money. The facts are in. The humid air is indoors. 3. There apparently is an adhesive additive for spray foam, which will assist in the foam being able to stick to house wraps or other slick surfaces. reference. Extruded Polystyrene. Find My Store. Wrap the plastic around your fencing mesh, then clip it over the mesh and secure the clips. , Ltd. Section R703. , a perm is defined as 1 grain of water vapor per hour, per square foot, per inch of mercury. Oks Poly Co. First and foremost, housewrap acts as a backup barrier that keeps water off the structural sheathing and framing. I am thinking of installing 1/2″ polyiso foam board, taping the seems, and putting a drip edge where the wood sheathing and bottom plates meet the block foundation. [1]manufacturers and suppliers of woven housewrap from around the world. Plastic light fixtures. mx Website : INDUSTRIAS PLÁSTICASBasement Vapor Barriers. That is one way to make sure that you’ve wasted your money buying house wrap because water vapor will still be able to get inside. 4-$0. Allows moisture vapor to pass through to help promote drying in walls. Lath shall be attached to horizontal wood framing members with 1. Easy to apply and use. ICP Register No. I've. 0 perm. TICONN 1PK Stretch Wrap Stretch Film Roll, 1000ft 60 Gauge Industrial Strength 15 inch Wide Clear Plastic Wrap with Handles for Pallet Wrapping Shipping and Surface Protection (1000ft, 1pk) 4. I was planning to use Tyvek but - everyone has their own opinion I realize that. Head Office: (1-55, Woram-Dong) 50 Gil35, Seong Seo-Ro, Dalseo-Ku, Daegu, Korea Tel:+82-53-582-1175~7 Fax:+82-53-582-1178 China Factory : Haibin Industrial Zone Jiaonan City, Qingdao China Tel:+86-532-8513-7838 Fax:+86-532-8513-7938House Wrap Product; Lumber Wrap Product; Cotton Module Cover. Scott Lumber Packaging XX XXXXXXXXX XXXXX XX XXXXXXXXXXX XXXXXX XXXX Bill of lading: 2022-11-23 Oks Poly Co. A buildup of moisture within a home’s wall cavities is. …ACK/WHITE 120GSM POLYETHYLENE LUMBER WRAP BLA PE LUMBER WRAP OKS POLY ROLL WIDTH 96/98/104 /105 INCH ROLL LENGTH COLOR BLACK/WHITE PO. Shipment History. 2022-05-10. Wall framing and insulation provide structural support and prevent heating and cooling loss. In a remodeling situation,. At each corner, make an eight-inch cut diagonally. ltd. Companies to explore. Mossy Oak® Graphics UTV camo vinyl wrap conforms to all side-by-side UTV's. Product Details. R703. N1102. HOME-FLEXTM Underground gas pipe is Medium Density Polyethylene (MDPE) gas pipe. This drainage gap also reduces moisture transport in the form of vapor drive, which occurs when rainwater is absorbed into the siding and then is driven. oks046-1 invoice no oks046-1. Add to Favorites. 90. Housewrap is used in exterior walls, attics, windows, doors. Blueskin ® VP100 is a premium, self-adhered vapor permeable, water-resistive barrier designed for wood-framed residential and multi-family construction. Most wrap material is UV-protected and can withstand up to 9 months of sun exposure, which means you don't have to worry about the wrap losing its strength during the building process. Supplier oks poly co. Here's What I Got!My Editing Software! Get 30% off with code JAKE30 :I Get My Music and SFX! in. 4k shipments total ITEM CODE HWWX-65-108 PO 26405 DESCRIPTION 65 GSM, 8X8 NON PERFORATED HOUSEWRAP. 1391 5121 Winnetka Ave North, Suite 130 New Hope, MN 55428Sample Shipment From Oks Poly Co. Quality closed cell foam insulation acts as a vapor barrier and does not absorb moisture; at the same time, the insulation prevents leakage by closing air gaps. Bake until vol-au-vents are puffed and golden on the outside, about 12 minutes. 2 Water-resistive barrier. The asphalt felt paper should go over the sheathing wrap, which should also wrap the. The rigid polyiso board continuous insulation reduces thermal bridging and has an integrated weather resistive barrier that eliminates the need for plastic house wrap. OKS POLY CO. ] View All Aliases & Addresses. Two layers of an approved water resistant barrier material, or. They are also straightforward. * Multi-Purpose Heavy-weight Black Plastic Drop Sheet On A. US Customs Records Notifications available for Oks Poly Co. Prep the door area with a sill nose. Overlap horizontal seams 6 inches (upper layer over lower layer). Lowe's house wrap provides defense against air infiltration by reducing drafts, increasing comfort and reducing energy loss. Panjiva uses over 30 international data sources to help you find qualified vendors of wrap polyethylene. Note that these subsequent layers of house wrap, shown in Figure 13, will be installed shingle-fashion over the roofing underlayment, kick-out flashing, and base flashing. The world's leading house wrap has the optimum combination of properties to deliver the best balance of weather protection, moisture management and durability behind residential facades. The coating is supplied in rolls, with an easy to remove film release sheet, for easy application. oks poly co. One layer of an approved water resistant barrier over an approved plastic house wrap, or. po no. It combines the benefits of housewraps and drainwraps. The layer beneath the siding—the water-resistive barrier, or WRB—is what will protect the plywood or oriented strand board (OSB) sheathing from any water that sneaks in. Panjiva uses over 30 international data sources to help you find qualified vendors of housewrap fabric. 4. Head Office: (1-55, Woram-Dong) 50 Gil35, Seong Seo-Ro, Dalseo-Ku, Daegu, Korea. for pricing and availability. And with a polyhouse, you can now grow them all year round! These tender, red beauties thrive in a warm and humid environment, making them perfect for a polyhouse. - available in sizes from 250sq mtr to 1000sq mtr. com: Tyvek House Wrap. Lathing shall be connected to the framing members 7 inches on center. Overlap vertical seams 6-12 inches. 0 perms or less and greater than 0. After only six months of exposure to UV rays, HomeGuard ® House Wrap may become. Penalties include but are not limited to loss of printing privileges for production packaging. Excavate out the ground between each of the floor joists (and underneath most of them), leaving columns of dirt/soil underneath the corners and center, and then put bricks, concrete/cinder blocks, or pour concrete forms around those dirt/soil "columns". 1 / 14 Family Handyman Avoid Cheap House Wrap “Perm rate” is the rate at which a house wrap allows water vapor to pass through it. 1 1/4 teaspoons salt. If the perm rating is low enough, the material is a vapor retarder. 053-582-1177 [Telephone Number, OKS POLY CO. Panjiva uses over 30 international data sources to help you find qualified vendors of woven housewrap. Yes, you do need a house wrap for a shed. House Wrap with Stucco - Tyvek or Typar??. Step 2: Use plastic-capped nails to attach the building wrap Additionally, when installing a building wrap over metal frames, you’ll want to use screws and washers. It goes between the sheathing and the rigid foam. 42/Tuesday, March 3, 2020/Notices 1 See Polyethylene Terephthalate Sheet from the Republic of Korea, Mexico, and the Sultanate of Oman: Initiation of Less-Than-Fair-Value Investigations, 84 FR 44854 (August 27, 2019) (Initiation Notice). 0 polyurethane or polyisocyanurate foam (spray. Plate 97 shipments. Many people are familiar with Tyvek ® house wrap*, whether through previous use or simply due to name recognition, like Kleenex, Jacuzzi, or Hoover. 2. , Sangil Corp. 3M acrylic flashing tapes can be applied from extreme cold to high heat and to many different construction materials. Using a house wrap as a tent groundsheet has become so popular because it’s hit the sweet spot of being fairly durable, light and cheap enough to buy. A lot of builders like the Zip system a lot because it eliminates what has always been a troublesome step in. A. 1) Use a thick enough layer of foam to minimize condensation on its interior face. Pay $128. ,LTD. The plastic has an egg-carton shape, with protruding dimples that make the membrane fairly thick — generally between 1/4 inch and 1/2 inch thick. In this post, we compared Barricade® Wrap. 12 ROLLS OF. Wood is very sensitive to humidity, and having excess moisture will permanently damage wooden fixtures and fittings to. Basic house wrap material is reasonably cheap, at only $0. House wrap helps protect the conditioned air in your house, leading to lowered utility costs. Hans Intech. In the U. [1] manufacturers and suppliers of woven housewrap from around the world. Completed in 2017 in Khwaeng Bang Wa, Thailand. Polyethylene 100 shipments. Generally, stucco that is applied directly to solid surfaces is placed in two coats that together total 5/8 inch of thickness. 13 to $0. The barrier will be sandwiched between the drywall and the rafters and under the blow-in insulation. Housewrap or tar paper (I still prefer tar paper) on the outside of the sheathing. Zpacks. Head Office: (1-55, Woram-Dong) 50 Gil35, Seong Seo-Ro, Dalseo-Ku, Daegu, Korea Tel:+82-53-582-1175~7 Fax:+82-53-582-1178 China Factory : Haibin Industrial Zone Jiaonan City, Qingdao China Tel:+86-532-8513-7838 Fax:+86-532-8513-7938 ICP Register No. comwater during irrigation. 90. First and foremost, housewrap acts as a backup barrier that keeps water off the structural sheathing and framing. 1 Basic hardboard. The home’s exterior, such as siding, is added afterwards to. Panjiva uses over 30 international data sources to help you find qualified vendors of South Korean wraps. Stinger StaplePac only. ft. UV inhibitors protect tape from sun exposure for up to 6 months. Higher perm rates are better for some climates and vice versa. , updated weekly since 2007. Add to Favorites Grinch Day Checklist PNG | Grinch Design | Christmas Cup Wrap | Sublimation PNG | 16oz Libbey Glass Wrap (80) $ 5. Location ZONE Qingdao, Shandong. When upper layers are not lapped over lower layers, moisture can get behind the house wrap. Save up to $100 on your qualifying purchase. from the furring down-. - Specially designed for nursery production. A water-resistive barrier (WRB) provides protection against water damage. But, when properly installed, that house wrap can save approximately 330 gallons of heating fuel each year. Plastic House Wrap. Importers for this supplier for the last 12 months. Model # 100000050107. $22. Shop Lowe's 1. , ltd. South Korean manufacturers and suppliers of housewrap from around the world. However, you can rely on the advice of your contractor to make your final decision, since not every. See their past imports from Oks Poly Co. Allows efficient drainage and ventilation to build exterior walls. : Shandong 09040748Best Insulation for Energy Efficiency. Shop for house wrap, tape and needed accessories at Lowes. Lowe's house wrap provides defense against air infiltration by reducing drafts, increasing comfort and reducing energy loss. Made especially for the DIY and restyling enthusiasts, our interior vinyl wraps will give you the ability to personalize your home at a fraction of the cost other shops offer. 12500 Federal Register/Vol. Tel:+86-532-8513-7838 Fax:+86-532-8513-7938. The average cost of this protective barrier is $0. Best Insulation for Plastic Greenhouses. Poly House For Nursery Production. She also wants to install a larger in-house composting at the school. Others may buy it better than I. Roll 77 shipments. As the foremost manufacturer of Stretch wrap film in China, we are sensitive to our customer needs. They primarily export from United States with 620 shipments. oks043-1 invoice no: oks043-1…pe lumber wrap oks poly roll width: 112/120/120 inch roll length: color: black/white po no. United-States Scottsdale AZ. Top Importer. Installing the wrap, at a bare minimum, will cost between $250 to $350. House wraps are designed to stop the flow of air, but they allow water vapor to pass through. Oks Poly Co. Easily delivers a cap and a staple;. ,ltd. Date Supplier Customer Details 43 more fields 2022-11-24 Oks Poly Co. OKS POLY CO. Make a horizontal slice in the house wrap just above the damaged area and slide in a patch, making sure to cover the hole by 2 in. Sealing wall penetrations and using latex wall paint will slow the movement down, but allow drying to occur. 2 Foam plastic sheathing (Insulation over foam plastic sheathing in 2018 and 2021 IRC) Section N1101. …ack/white 120gsm polyethylene lumber wrap bla pe lumber wrap oks poly roll width 96/98/104 /105 inch roll length color black/white po. x 12 ft. HomeWrap Type: Nonwoven polyolefin Perm rating: 50. Panjiva uses over 30 international data sources to help you find qualified vendors of housewrap fabric. House wrap is designed to keep water from infiltrating the walls. Start your project right with our large selection of house wraps and rainscreen for all your building needs. 181 total de envios . Stego Wrap Vapor Barrier – it comes in various thicknesses: 10 mils (0. Air resistance - protects the wall assembly from air infiltration to increase the comfort of the building by reducing drafts and increasing energy efficiency 22 products in House Wrap Width (Feet): 9 Width (Feet): 3 Length (Feet): 100 Tyvek Lowe's Length (Feet): 150 Pickup Free Delivery Fast Delivery Sort & Filter Lowe's 3-ft x 100-ft Water Resistant House Wrap (300-sq ft) Model # 03100 Find My Store for pricing and availability 349 Lowe's 9-ft x 150-ft Water Resistant House Wrap (1350-sq ft) OKS POLY CO. Rigid insulation provides thermal protection and it can also serve as an air and moisture barrier. A woven, extrusion coated polypropylene fabric containing micro perforations engineered to serve as an air and wind infiltration, moisture protection. With any sheathing wrap. Shop Lowe's 9-ft x 150-ft Water Resistant House Wrap (1350-sq ft) in the House Wrap department at Lowe's. This protective. South Korean manufacturers and suppliers of wraps from around the world. See exports to Sigman U. Oks Poly Co. Well-sealed drywall in itself makes a great air barrier. Fasteners: use a cap nailer because slap staples leak. Perforated plastic house wrap is at the bottom of the list in my opinion. Lumberwrap 115 shipments. Wall Section 1 - Insulating. Have used higher perm rate products and had Solar driven moisture problems especially behind brick. $14. 1 Extruded polystyrene foamboard (usually blue, yellow, or pink) 5. House wrap is designed to protect the home against rain, sleet, snow, and any other type of moisture that may seep through the exterior siding. shipments available for Qingdao Oks Poly Co. Install windows to the shed (optional). -. The higher the “perm number,” the more vapor permeable the materials. for pricing and availability. Head Office: (1-55, Woram-Dong) 50 Gil35, Seong Seo-Ro, Dalseo-Ku, Daegu, Korea Tel:+82-53-582-1175~7 Fax:+82-53-582-1178 China Factory : Haibin Industrial Zone Jiaonan City, Qingdao China South Korean manufacturers and suppliers of housewrap from around the world. I originally had paid extra (5 years ago) to have them install Dow Weathermate Plus house wrap. Electric octagon boxes. If water sprinkled on the wall is not readily absorbed. , Ltd. 395 U. Think about how easy it is to foil vapor barrier your hot room and how foil bubble wrap is sauna building secret #5. Company. Apply for a Home Depot Consumer Card. Protect your investment with DuPont™ TYVEK® HomeWrap®. Main Products PE&PP, TARPAULIN. Compare. 5. ft. New construction allows the house wrap to be folded around the rough opening, making it easier to create a water tight seam between the window and the house wrap. south korea 1. po no. However, for maximum protection, a 2-inch to 4-inch (51-102 mm) overlap on the sill plate is recommended. 26 galvanized sheet gage), corrosion-resistant weep screed or plastic weep screed, with a minimum vertical attachment flange of 31/2 inches (89 mm) shall be provided at or below the foundation plate line on exterior stud walls in accordance with ASTM C 926. Competitive advantage between House Wraps vs Tar Paper. Hover Image to Zoom. The key to insulating your pole barn effectively is to start with the right building design. See their past imports and exports, including shipments from Oks Poly Co. In houses with spray foam insulation, however, vapor barriers are not necessary. HAIBIN INDUSTRIAL ZONE JIAONAN CITY QINGDAO CHINA. *add 2x2 spacers to each side of rafters. Insufficient lapping can compromise water resistance, too. #5 · Feb 4, 2012. House wrap can help keep moisture out while helping to promote air flow.