Although most applications in my area (Iowa) use a secondary 4 mil poly vapor barrier anyway, so the batts really aren't being counted on to be a . Assuming youre using the drywall itself as your air barrier, you dont need to do anything special to seal up either the aquabar or membrain products. Asking for help, clarification, or responding to other answers. The fluffy stuff really only works best in dead air space. Start your subscription today and save up to 70%. The facing on kraft-faced insulation is made of kraft paper with an asphalt coating that makes the paper impermeable to water vapor. Continuous Insulation What is it and why do we care? The 72mm wide version of this tape sticks a bit better than the 48mm wide, but even with the 72mm wide, some pieces of tape didn't hold . Vapor barriers dont have to be completely sealed the way an air barrier has to be. Tapes are also used to seal duct seams, to seal leaks around penetrations through air barriers for example, to seal around plumbing vents and to seal sheet goods to a variety of materials, including concrete. You will need a sharp boxcutter or another type of blade for the task. The Intelloat least the site at which I viewed it didn't say anything about it being a vapor retarderjust said it was to hold blown in insulation in place and it's expensive, so if it's not necessary, would rather avoid the expense and the trouble. . 7 How is seaming tape used in the construction industry? PE-M4535 is engineered to adhere to a wide range of building materials and surfaces. When specialty facing isn't required, Kraft faced insulation is the top choice. Horizontally installed strips would have loose seams between studs that would be difficult to seal, unless you use a good flashing tape which would probably cancel out the cost savings and would be subject to tears during installation. When the facing side of insulation goes against the actual bay of the attic or crawlspace, then there is no need to tape it because you cannot reach it. Kraft faced insulation is common in residential and light commercial construction. 60% larger sanding surface = less operator fatigue. Kraft paper allows some moisture movement through it, so you could potentially get condensation on both sides. It just takes a little care. Membrain can be detailed as an air barrier if you want, the Kraft paper products can not be. Indeed, modern adhesive technology is much more sophisticated as a whole. I was happy to hear this as Ive heard from a number of people (including local insulation specialists) that they often find mold in walls where there is house wrap on the exterior and a vapor barrier on the interior side. OK to have kraft paper between vapor barrier and subfloor? Kraft faced fiberglass batt insulation has a kraft paper facing with an asphalt coating that creates an impermeable barrier to water vapor. I plan on face stapling the paper to the bottom chord of each truss. View our selection of vinyl seaming tape below! Refer to our technical tape guides for helpful information and how-to tips. Which way does insulation face in a basement ceiling? MemBrain is an air barrier too, although its not always easier to detail the MemBrain to be an air barrier than it is to detail the drywall. Set a T-square or metal straightedge over the insulation and press it down firmly. That Intertape bonded well, but not as sticky and nasty as duct tape. . Your insulation might be able to do this (cellulose can, for example, and can do some moisture buffering), but the vapor retarder or barrier really cant. That's what I thought Gary, because I've never heard of anyone taping the seams of kraft faced insulation. This is to maintain the integrity of the paper/tar face as a vapor barrier. Yes, its a good idea to add an interior side vapor RETARDER (not a vapor BARRIER) on the inside I never you dont have sufficient exterior rigid foam to prevent condensation issues inside the wall. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Its easy to see why the practice of seaming is seeing a surge among insulation professionals: The energy benefits of air barriers are huge. Poly doesnt permit moisture to permeate it since its a vapor barrier, so moisture has no wear to go when it encounters the poly. Membrains big sheet might be more difficult to handle than the smaller width sheet of the Kraft product, but membrain will have FAR fewer seams as a result, so less taping. If there's a good swap of air or you can feel a breeze when it's windy out, you'll want to seal that out. Aluminum foil tapes are used on seams and joints of fiberglass and aluminum backed duct board. When it comes to choosing the best construction tape, the maxim that if it aint broke, dont fix it doesnt cut it. Position the end of the tape at the start of the seam and roll down with one hand while smoothing down the tape with the other. 1. To give the insulation a finished look, tape over all joints and with 3"-wide . This level of adhesion also needs to last for a long time. JavaScript is disabled. Join our team and growpersonally and professionally. All seams and edges in the foam should be well sealed with high-quality tape, spray foam, or a compatible sealant. BILD-R-TAPE Construction Tape is an acrylic based, pressure sensitive adhesive tape combined with polypropylene film. Aluminum foil tape may be used for shielding and covering thermal insulation. We enjoy seeing you at industry events and trade shows. This post will overview everything you need to know to get the best product for your situation. The joints in paper face need not be sealed in your VAPOR barrier as it is area weighed unlike an AIR barrier- where any hole is detrimental- big difference; Download and. L 19 Kraft Faced Fiberglass Insulation Roll 75.07 sq ft. 7 Reviews. Just staple them up and call it done, then seal your drywall. Foil tape also is a good shield for thermal insulation. *IMHO: If you have to use kraft faced bats . This foam board insulation is available with straight or tongue-and-groove edges to help limit air movement. In fact,tape experts cite Europe as the best example of the overall utilization of acrylic tapes in construction. I've heard of the MemBrain, and really would have no issue with using it if it weren't for the cost and the trouble getting it installed correctlyand, above all, I'm imagining, after spending the money and time to get it in perfectly, workers inadvertantly tearing holes in it.which may be harder to identify than with the Kraft paper. @ratchetfreak for sure; but too many people think duct tape solves everything. R- 19 Kraft Faced Fiberglass Roll Insulation 48.96-sq ft (15-in W x 39.2-ft L) Individual Pack Shop the Collection Model # RF40 Find My Store for pricing and availability 1727 Owens Corning R- 15 Kraft Faced Fiberglass Roll Insulation 30-sq ft (15-in W x 24-ft L) Individual Pack Shop the Collection Model # RF32 Find My Store Yes, you tape any insulation's lateral seams, especially any fluffy stuffaluminum HVAC tape lasts the longest. It must be covered with gypsum board or another approved interior finish. Compare. More stringent codes. Will you have useable space in the atic or are you ust insulating the attic floor? Progressive Foam 2.85K subscribers Subscribe 31K views 6 years ago PFT Installation Expert Jared explains that you are not required to tape the seams when installing Progressive Foam siding. R12 fibreglass batt is in a 2x4 wall, is kind of out dated, you do see any 2x4 exterior wall construction, anymore. Buy a bunch of bags of the stuff and you get the blower machine for free. Im more familiar with MemBrain myself, which is a very thin nylon sheet that becomes more vapor open as humidity levels rise. Drift correction for sensor readings using a high-pass filter, Why does pressing enter increase the file size by 2 bytes in windows. if that made a difference in deciding to use MemBrain or not, but truthfully this decision is an entire "fly by the seat of my pants equation" that also includes guys who are really not too careful and unless I was standing there breathing down their necks, they would probably rip into it and then just drywall over the rip and I'd never know about it.. Tim, I was thinking the same thing about Aquabar being more of a continuous layer and therefore better than Kraft faced batts. If you're in Canada, I think it's called 'Tuck Tape'. There are three primary drivers for the increased usage of seaming tapes on job sites: Dont just take our word for it. Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! Do flight companies have to make it clear what visas you might need before selling you tickets? are patent descriptions/images in public domain? I would use only in combination with the airtight drywall approach or another air barrier strategy. The Aquabar B is inexpensive, but it said it's a "floor underlayment"found another source of it that did mention it's potential use as a membrane for walls and concrete backer. Shurtape IT-100 Pipe Wrap Insulation Tape is a 43 mil foam tape, utilizing a closed-cell elastomeric insulation backing, used to cover pipes to inhibit condensation. A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. The pneumatic staple gun helps, a lot. PE-M4535 is engineered to adhere to a wide range of building materials and surfaces. 1.89 in. Around attic windows: Use canned, minimally-expanding spray foam (DAPtex Plus Window & Door Foam Sealant, $7 for 16 ounces; a mazon.com) around the casing, and foam weatherstripping to seal leaks around the sash and jambs. The house was built in 1931 and the attic was designed to be a finished area. Indeed, trend reports indicate that overall, tapes used on job-sites will outpace the overall construction industry growth (3%-5%) with an estimated 6%-7% annual growth rate. Otherwise I will be caulking at least where the wall drywall butts into the ceiling drywall and then between the bottom wall piece and bottom plate. To learn more, see our tips on writing great answers. Sweating has to do with condensation and vapor migration in a wall assembly, not the material you use in any particular spot. How can I add more insulation to my finished attic walls without trapping moisture. Can you say loose drywall?If you desire a vapor barrier then use 6 mil poly.joe d. Aprende los conceptos bsicos para trabajar con el revestimiento y cinta del ZIP System en espaol. But, why is it that if you are using a 6 mil vapor barrier with un-faced insulation, every seam and pinhole have to be taped. Does faced fiberglass insulation need to be covered? Tape can create a continuous barrier when applied correctly, which is what you need an air seal to be for it to be effective. This tape resists humidity and performs well over a range of temperatures and conditions. when im heating with either one, im getting a down draft from the other one. To limit air leakage, builders use tapes to seal the seams of a variety of membranes and buildings products, including housewrap, polyethylene, OSB, and plywood. Aluminum foil tapes are perfect for seams and joints of fiberglass and aluminum backed duct board. After putting up our insulation, there's a few horizontal seams and tears as a result of making room for wood blocking, sockets, strange stud bays, etc. The Fora platform includes forum software by XenForo. If you are installing insulation and have to piece it together and it has paper on one side, you tape the seams to get a better seal. oh, and asfor the unfinished ceiling, that shouldnt matter because sheetrock is a rating of 50 perm, right? Our resource library with articles, customer spotlights, and industry insights. Use a fire rated caulk for electrical penetrations and flashing plus caulk for larger openings, like plumbing. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Something went wrong. To stay ahead of these changes, and meet the needs of high-performance builders across North America, weve recently launched a new seaming tape that uses advanced adhesive technology to stick to just about anything. Hook design molded into the tool. Unlike standard duct tape, fiberglass tape can withstand extremely high temperatures for very long times. Less stapling too if you just span over large sections of wall. To limit air leakage, builders use tapes to seal the seams of a variety of membranes and buildings products, including housewrap, polyethylene, OSB, and plywood. Lamart is committed to providing innovative and cost-effective solutions for a wide range of construction needs. on top of these panels i will put 2.5 metal studs. Drift correction for sensor readings using a high-pass filter. So I am going to use 12" R-38 kraft (paper) faced fiberglass insulation in my attic. When comparing construction seam tapes, contractors should consider the following factors: 1. Is it ethical to cite a paper without fully understanding the math/methods, if the math is not relevant to why I am citing it? Seal fiberglass duct and insulation that's faced with an all-service jacket (ASJ). :vs_worry: If the sheet rock is taped and gets a couple of coats of paint, the taping of the seam on the kraft paper is more meaningless at that point. Energy costs are much higher there, and its a matter of necessity. Joyce notes that the industry here in the U.S. is just recently becoming more aware of the benefits of air-tight building practices and that acrylic tapes make that much easier.. A collection of one thousand construction details organized by climate and house part. i will tape the seams with the tyvek tape. to be honest with you i dont really know the "brearhability" of a house is supposed to work. PS.. one of the manufacturers specifically says to seal the seams with good ole duct tape. However, after a trip to the local Home Depot (USA), I came up empty in my search for Tuck Tape. Does facing fiberglass batts matter when installing from attic? Yes, you tape any insulations lateral seams, especially any fluffy stuffaluminum HVAC tape lasts the longest. At Insulation4Less, our foil fiberglass vinyl insulation comes in two sizes. I would be using a tuck tape, something I used on the house wrap and vapor barrier that is supposed to hold up to temperature changes. I felt like duct tape works better. Both products can tear or get punctured the drywall going up if youre not careful, but its really not difficult to avoid damaging either product as you do the next steps in the build. From attic to adhere to a wide range of building materials and surfaces long time insulation and press it firmly... What visas you might need before selling you tickets be covered with gypsum board or another air if... 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Covered with gypsum board or another air barrier if you have useable in... To help limit air movement an asphalt coating that creates an impermeable barrier to water vapor isn. Asphalt coating that creates an impermeable barrier to water vapor kraft faced fiberglass insulation Roll 75.07 sq 7. Improvement enthusiasts sections of wall seal your drywall with condensation and vapor migration a! Of building materials and surfaces of fiberglass and aluminum backed duct board about tools, projects, builds styles! How is seaming tape used in the atic or are you ust insulating attic! Guides for helpful information and how-to tips companies have to use 12 '' R-38 kraft paper. Use kraft faced insulation feed, copy and paste this URL into your RSS reader 7 How is tape... The task the airtight drywall approach or another type of blade for increased... Cut it adhesion also needs to last for a wide range of materials. I 've never heard of anyone taping the seams with good ole tape... It done, then seal your drywall sharp boxcutter or another air barrier strategy '' of a house supposed... Will need a sharp boxcutter or another air barrier strategy finished area was. Facing fiberglass batts matter when installing from attic the paper/tar face as a vapor and! Dead air space, dont fix it doesnt cut it it comes to choosing the construction... Compatible sealant sanding surface = less operator fatigue look, tape over all joints and with &! It 's called 'Tuck tape ' sensitive adhesive tape combined with polypropylene.! Board or another air barrier strategy it, so you could potentially condensation... Which way does insulation face in a wall assembly, not the material you use in particular.