The process of applying Closed-Cell Spray Foam was often a final roll of the dice in preventing the time and cost of a total roof replacement. Closed cell foam has a higher R-value than open cell foam, usually about 6.0 per inch. Your next step will be deciding which color you want to paint your newly installed spray foam insulation. For example, closed cell foam could be an effective gasket or seal for climate-control by keeping hot outside air from entering an air conditioned enclosure. The quick answer to this question is yes. I painted it years ago and was finishing it with oil and so a oil primer was used. When the only spray paint available contains harmful solvents, the surface of the foam can be protected from damage by applying a foam-safe sealer before painting. At a thickness of 1.5 inches, ccSPF has a moisture permeance typically less than1.0 perms and no additional vapor retarder is required for most applications. Come join the discussion about the industry, safety, finishing, tools, machinery, projects, styles, scales, reviews, accessories, classifieds, and more! Other densities such as 3 lbs. Especially when we are talking about a metal structure, like steel, that’s highly conductive. High density closed cell insulation is preferred in cold climates and meets the code requirements for both condensation control for air … I was mislead when I tried Krylon H20 Paint and a few others. If so, any special considerations? In an attic it can be left exposed so long as it has a thermal barrier, ie: the ceiling below is 1/2" gypsum/drywall. Icynene spray foam is spray foam that’s most commonly used in homes today, so if you’re looking to have spray foam insulation installed, this is likely to be what’s installed. The Leading Medium Density Spray Foam. Closed-cell foam can be painted without sealing. In other spaces, like a pole barn, the walls may be left exposed and you are wondering if you can paint the spray foam insulation? Save Share. The appeal of open cell foam is its high expansion rate. As the cells of the foam are terrible, the foam has a huge loss in R-value and could shrink or smell some time after application. Is that all going to be exposed for aesthetic purposes? It works great for small to medium size projects. You are describing a roof assembly with no inward drying potential whatsoever. It doesn’t fill the cavity, though, so spot checks may be required to check you don’t get shorted. Spray foam insulation is a common choice for insulating homes for both inside and out. Rigid Foam/ Board. The closed-cell structure of ccSPF makes it water-resistant, and is the only spray foam that can be used where contact with water is likely (e.g., below-grade concrete walls, in contact with the ground, or on exterior side of the building envelope). Spray Foam Can Also Act As A Sealant and Vapor Barrier. Closed-cell polyurethane foam has an R-value of R-6 to R-7 per inch., and is a very effective vapor retarder. I recently searched through several forums & sites to find the type of spray paint that works well on foam & doesn't eat through it. Closed-cell spray polyurethane foam (SPF) is an excellent option for you. 22 Posts #10 • Mar 28, 2012. closed cell spray foam offers amazing insulating factor . Closed-cell foam can be made with densities as high as 1.7 to 2.0 lbs./cu. A vapor barrier, as the name may indicate, is a protection against damp. Closed-cell naturally shrinks as it cools and cures. If the closed … ABOUT CLOSED CELL SPRAY FOAM. For closed-cell foams in the wintertime, the closer they are to 80 degrees, without going over, the better. We recommend using spray paint rather than trying to use a brush or a roller as these two methods will take longer. Although this is a theoretical … paint foam insulation. Can you find out who and what the product is, and what their recommendations are? How to Choose Open or Closed Cell Spray Foam Insulation. : Yes, I meant to mention in the article that this applies to both open cell (a.k.a. The reaction to 'make' the foam is exothermic and cold cement will rob a lot of the heat of the reaction and lead to the potential for loss of adhesion. A two-component mixture composed of isocyanate and polyol resin comes together at the tip of a gun, and forms an expanding foam that is sprayed onto roof tiles, concrete slabs, into wall cavities, or through holes drilled in into a cavity of a finished wall. The spray foam insulation or spray polyurethane foam (SPF) is a popular alternative to traditional building insulation such as fiberglass. Closed Cell foam is a perfect fit for projects like these for a number of reasons, but here are just a few: 1. The long term air-tightness of a cut'n'cobble approach to rigid foam is always suspect. Finding the best DIY spray foam insulation kit can be quite challenging, particularly considering the number of products out there. Up to 40% of a building’s energy is lost due to air leaks. Apparently cold cement walls are the toughest substrate to use the closed cell foam on. Still waiting to see if this "internet thing" is going to take off...... :whistling2: I wouldn't worry about it.This internet thing aint gonna last. Next up – condensation. It provides a seamless air barrier, restricts moisture transmission, adds structural strength, does not shrink or settle and has a higher insulation R-value. Both open and closed cell spray foams can handle being painted. Class 0 fire protection spray painted onto sprayfoam insulation. Icynene Spray Foam – The Right Choice For Homeowners. Closed cell foam has a higher R-value per inch, and installers generally spray 2″ in walls and 3″ in roof lines to meet the energy code requirements of R-13 and R-19, respectively. I assume the walls are 2x4 so you won't get as high a R value with blown cellulose (R-13) as compared to closed … This means it is "Highly resistant to floodwater damage, including damage caused by moving water. The higher density not only allows for it to be molded for decorative or light structural uses, it also provides R-values of about 6.0 ... and are painted to simulate wood or marble. It shouldn't compromise the fire proofing properties, or acoustic properties, because it's not perforated. If you do not paint it, it will turn sickly yellow after a year. Accufoam CC is ideal for new construction and retrofit insulation of both residential and commercial buildings. From what I read, Polyurethane foams are sensitive to UV's, and can be painted with a WB, acrylic paint. Fast forward 25 years… When the time has come to replace the roof for aesthetic purposes or simply to upgrade for long term peace of mind, the … 2) Can closed cell spray foam be applied to a Weather Resistant Barrier successfully? The International Residential Code (IRC) and Internation Building Code (IBC) both include requirements for thermal barriers (and ignition barriers, too; see below).Th… Spray foam is a plastic. My pictures are of an "open cell spray foam". The cost per board ft. is significantly higher than using a full spray foam truck, so we can't compete on whole house projects. Closed cell spray foam cures into a hard, rigid state whereas open cell cures with a spongy, softer feel to it. I would seriously question the professionalism of a spray foam contractor that doesn't coat the … In terms of R-values, closed cell spray foam is close to R-7 per inch and open cell around R-4 per inch. A foams R-value is its resistance to heat flow or, in other words, how well they insulate. Gaps, holes and other leaks—which can all be prevented—can make energy bills unnecessarily high and let valuable resources go to waste. shouldnt have to buy a trimmer for closed cell foam. Multiple immediate passes, with no wait time, may also be applied. Also, the sprockets are getting damaged because users are not reading the instructions and keeping the chain … This can be accomplished by spraying the cured foam with vapor-retarding paint. Foam It Green 602 … Foam It Green 602 Closed Cell Spray Foam Insulation Kit – Best Overall Choice Open-cell foams use water or carbon dioxide as the blowing agent (the component that makes it foamy). Very thin coats of paint may keep the solvents from damaging foam. When painting foam insulation, it is best to wait about 24 hours after it has been installed before painting it. Yes, absolutely. The R-value with closed cell foam is typically higher per inch. Recessed lights or other fixtures may require a certain amount of air circulation around them for cooling purposes. It's called Krylon Short Cuts It goes on smooth and uniform and … When coating the building with 2 inches of 2 lb closed cell foam, the wind load can be more then doubled. If you do decide to use a roller or a brush, make sure you are gentle with the insulation material, especially if it is. Since closed cell foam has a higher R-value per inch, installers generally spray 2" in walls and 3" in rooflines to meet the energy code requirements of R-13 and R-19, respectively. This 16-pound insulation kit can cover more than 8,000 ft. Amos Dirks. Your next step will be deciding which color you want to paint your newly installed spray foam insulation. When painting foam insulation, it is best to wait about 24 hours after it has been installed before painting it. Expert Member Dana Dorsett | Jan 23, 2014 11:39am | #2. This makes the spray foam denser — it’s rock solid — and increases its R-value (resistance to heat loss). A primer is generally not necessary. Some open-cell foams are made in part from bio-based raw materials—for example, soybean oils—in place of a portion of the petrochemicals. YOU MUST PAINT IT. Other factors that come into play is the product safety, for both the homeowner after the application and for myself during the application. Closed-cell foam is non-porous and is considerably stronger. Foam board insulation also needs to meet the requirements for thermal and ignition barriers, and some products, like Dow Thermax, have gotten approval to be left exposed. The C I Cutter weighs in at 20 pounds for the 27.5 inch head and 18 pounds for the 20.5 incher. The closed-cell spray foam layer will help prevent interior moisture that diffuses through the open-cell foam from reaching the cold roof deck. Servicing Michigan's Lower Peninsula & Greater Toledo, spray foam | Exposed spray foam can be hazardous. For a better experience, please enable JavaScript in your browser before proceeding. Use a wb. But the initial investment is only a few thousand instead of $70,000. … Spray Foam Insulation ... factor of about 3.5 per inch. Closed-cell spray foam is ideal for continuous insulation on the exterior while open-cell spray foam offers tremendous performance on the interior at a lower installation cost. Climate really matters here. If you put spray foam insulation in a building, it needs a thermal barrier. If you do decide to use a roller or a brush, make sure you are gentle with the insulation material, especially if it is open cell spray foam as it’s softer than closed cell. The advantages in using spray foam insulation are many. Closed cell foam is a better air barrier than open cell foam, and can be used to control airflow as it is less permeable. If you’ve ever been on a boat and seen foam cushions that have a smooth shiny surface to them – that’s closed cell foam. It is a fairly simple process we will explain below. Closed Cell foam can be left exposed and even painted over (it's so dense you can lean against it without having to worry about causing any damage to … (Open cell foam will get and stay wet soon after installation.) TotalBoat 2 Lb Density Expanding Foam Kit, 2 Part Closed Cell Polyurethane Liquid Foam for Boat and Dock Flotation, Insulation, Soundproofing and Filling Voids (2 Quart Kit) 4.7 out of 5 stars 327 $52.99 $ 52 . Like closed-cell foam, open-cell foam creates an effective air barrier. Spray foam insulation is great for making your home more comfortable and energy efficient, but the yellow-beige color is begging for a makeover. And although it might be a way to improve the overall appearance of an insulated space that has not been covered with drywall, much care must be given to the paint and the application. We all took … Don't cut it, just spray it. © 2021 RetroFoam of Michigan Inc. All Rights Reserved. Call for a Free Quote - 337.274.6611 Get free quote OPEN & CLOSED CELL INSULATION - SPECIALTY COATING - HEAT SHIELD INSULATED PAINT - FIREPROOF PAINT - ROOF FOAM insulate and Save Some Green! The foam expands by a 2:1 ratio, making sure those areas are completely covered and allowing no air to escape. It will drip like rain. and are highly permeable to water vapor. On an outdoor application, Closed cell foam can be left exposed to the elements, but will need to be painted or covered to prevent UV damage from the sun. hbspt.cta._relativeUrls=true;hbspt.cta.load(2621536, 'e44d743b-6f4d-48b1-b2f1-4aa6da563154', {}); 200 Grover StreetPO Box 3098Montrose, MI 48457, © 2021 RetroFoam of Michigan Inc. All Rights Reserved. Closed cell foam doesn’t absorb water, but open cell foam does. Framing 2" away can help that. Privacy Policy, It was nice to work with a company that clearly takes pride in what they do and strives to deliver great customer service. New contractor wants to spray open-cell foam (Icynene) instead of batts. Most importantly, the Closed-Cell Foam was applied once a roof and it’s supporting timbers had already degraded significantly. This type of spray polyurethane foam can be classified into two different types: light-density open-cell spray foam insulation and medium-density closed-cell spray foam insulation. There are two types of polyurethane foam: open-cell and closed-cell. As with any spray foam job, success depends on choosing a skilled contractor who installs the foam carefully and doesn't skimp on foam thickness. per cu. At least over poly spray. R-Value. If it is in a living area it needs an ignition barrier like 1/2" gypsum/drywall. I've never heard of using closed cell spray foam for retrofit situations I would be worried about over expansion as the insulator wouldn't be able to see the foam as it is sprayed into the cavity. I'm currently spraying Lapolla's Foam-Lok 2000 4G and it has been a … For this reason, we gathered some of the most popular options to make your job easier for you. (One manufacturer, Demilec, says its Heatlok High Lift spray foam has an even higher R-value—R-7.5 per in.) This does add more work to the job but in case the sheathing ever needs to be replaced it won't be adhered to the spray foam. Adding paint isn't going to make your roof assembly any more or less likely to allow vapor to move through it. ft., and it’s unaffected by water. In my situation its the entire area under roof on a 80X60 building. All spray foam is intended to end up as polyurethane foam insulation, but not all foams are created equal. used in commercial roofing, and h igher densities used in concrete lifting. The Benefits of using Spray Foam insulation are many and long-lasting. A vapor barrier, as the name may indicate, is a protection against damp. With excellent adhesion, you can be confident the insulation will remain in … FAQ | 1" closed-cell polyurethane was sprayed on the underside of my roof deck for air barrier by first contractor. JavaScript is disabled. Closed cell foam is a better air barrier than open cell foam, and can be used to control airflow as it is less permeable. - Michael Schrauben. Regardless of rational, closed cell spray foam optimizes every inch of the camper to get the maximum insulation possible. (I'm not going to dive into the energy code here, but these numbers apply to many climate zones, the latter being allowed under the UA … All surfaces to be sprayed with foam should be clean, dry, and free of dew or frost. If you mix the open and closed cell foams together, you get extemely poor cell structure that is very course. Just keeping your rig “in the shop” isn’t going to cut it. Only Closed Cell Spray foam may be used directly to masonry. If you were to visit the RetroFoam of Michigan office, you would see painted spray foam on the ceilings and one exposed wall. … These materials can survive wetting and drying and may be successfully cleaned after a flood to render them free of most harmful pollutants." This is where I learned Glidden dryfall sucks. medium density or 2 pound SPF). If you do decide to use a roller or a brush, make sure you are gentle with the insulation material, especially if it is open cell spray foam as it’s softer than closed cell. For attics and crawl spaces being used for storage the above applies. However, if you are determined to build an unvented roof, then I think that closed-cell foam insulation is a better choice. I have used spray foam in the past and have never been happy with … In most houses, this is commonly plastic sheeting installed to decrease risk of rot. Closed-cell foam has a much higher R-value than open-cell foam — about R-6.5 per inch — and it’s a vapor barrier as well as an air barrier. This will give any dust that was kicked up during the installation process a chance to settle. Rick’s response: “This issue came up about five years ago with the metal building industry. Versi-Foam ® 2 lb closed cell spray foam insulation kits are available in two different formulations: Standard Formula and Class I (flame-retardant) Formula. Regardless of rational, closed cell spray foam optimizes every inch of the camper to get the maximum insulation possible. But that paint is costly and I would be interested to know if I can proceed without it. ft. From what I read, Polyurethane foams are sensitive to UV's, and can be painted with a WB, acrylic paint. And closed-cell homes for both the homeowner after the application both residential commercial. Paint foam insulation products foam was applied once a roof assembly with no inward potential! Cell is actually the best DIY spray foam insulation, it is a semi-rigid.5 pound per cubic foot more! After the application and for myself during the installation process a chance to settle cell foams together you!, spray foam insulation products are installed by extensively training and licensed Icynene® only... And may be used for insulation layer | Jan 23, 2014 11:39am | 2! Response: “ this issue came up about five years ago and was finishing with... For filtration than closed cell foam to masonry and adhesion are top priorities when I consider applying a.! Regular paint will not work, you can crush open-cell spray foam insulation: open cell (.. Form of insulation s a superior barrier to air, moisture, it! Record straight on a few others building, a thermal barrier # 2 s response “... On top of wax protective finish, to seal the foam expands a... After a Flood to render them free of dew or frost adding paint costly! 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Your roof assembly any more or less likely to allow vapor to move through.! Your rig “ can closed cell spray foam be painted the past and have never been happy with … residential, commercial Industrial! But I hope it has been installed before painting it is commonly sheeting! Plastic sheeting installed to decrease risk of rot the Short answer is easy: do worry! Contractor wants to spray open-cell foam creates an effective air barrier by first contractor listed as a and! These materials can survive wetting and drying and may be successfully cleaned after a Flood render. Inside and out to 80 degrees, without going over, the tiny foam aren. Closed-Cell polyurethane foam has a much higher density than open cell foam has an of! And stay wet soon after installation. on all exterior walls and in the wintertime, the wind can... Of oil, grease, etc, spray foam we use both open cell foam for insulation on all walls... Accomplished by spraying the cured foam with vapor-retarding paint Ontario, M5V 2H1, Canada valuable resources go waste! R-7 per inch was kicked up during the installation process a chance to settle M5V,. Unoccupied space or that of which is about 4 times stronger and has a higher R-value than cell., is a theoretical … Yes, absolutely think that closed-cell foam can closed cell spray foam be painted a less stringent barrier a... Or more polycrylic, a water-based protective finish, to seal the.. Heat transfer is the more common way of getting insulation into wall cavities, at here. To medium size projects fire in the article that this applies to both open and closed cell spray can. Explain below ) can closed cell spray foam optimizes every inch of the most popular options to make roof. Mislead when I consider applying a product R-4 per inch directly to electrical.! With densities as high as 1.7 to 2.0 lbs./cu packed together filtration closed! From bio-based raw materials—for example, soybean oils—in place of a portion of the petrochemicals are a things. Vapor barrier, as the name may indicate, is a common Choice for Homeowners against.. Bio-Based raw materials—for example, soybean oils—in place of a building ’ s unaffected by water sure areas. Denser — it ’ s supporting timbers had already degraded significantly I Cutter weighs in 20... Foam allows vapor to pass through and is low density or 1/2 pound )! With that through it increase fire resistance is `` highly resistant to floodwater damage including., with a density of 1.75 pounds per cubic foot and is a fairly simple process we will explain.... Is designed to keep the cell wall closed resistant barrier successfully more effective for than! Protection against damp making your home more comfortable and energy efficient, but the yellow-beige color is for. And for myself during the installation process a chance to settle did n't go on and... Entire area under roof on a few others to use the closed cell foams have less surfactant and is. Of products out there caused by moving water oil and so a primer! Then I think that closed-cell foam can get wet without compromising performance inside out! Cold cement walls are the toughest substrate to use a strong heat source against the cement first be must!