What are the shipping options for Cellulose Insulation? If not, why—what are its drawbacks? You might start by reading this recent collection of opinions: As for cellulose, it is heavily treated with chemicals to reduce its flammability, and while the chemicals may not be harmful to humans they are highly effective. As the construction industry moves away from toxic materials and closer to … Found inside – Page 3815It is concluded that : the manufacturing of cellulose insulation is not a simple process ; the market for this ... The present brochure investigates the advantages and disadvantages of a roof heating centre , its preconditions and the ... Your Insulation Solutions Experts for Over 3 Generations. Installation of NatureGuard® cellulose insulation. I blew cellulose over the fiberglass in my last house. Keep getting conflicting information between blown in cellulose and fiberglass. Found inside – Page 239... yourself of the following six different insulation materials: n fibreglass batts n rock wool batts n polyester batts n wool batts n polystyrene n spray-in cellulose insulation. Write the advantages and disadvantages of using each of ... In wall applications, wet-spray cellulose fills around wires and pipes, sealing the cavity more effectively than fiberglass batts, and settling does not occur. The previous discussion that Martin pointed out focused on applying insulation within the cavity of a wall. © 2021 The Taunton Press, Inc. All rights reserved. Dense-pack cellulose is an excellent sound attenuator. Home \ Uncategorized \ disadvantages of cellulose insulation . Clearly there is cause for concern in humid climates. Laura, You can often rent cellulose blowers at a lumber yard or tool rental shop. Then perhaps you shouldn't be giving out advise. Here is a breakdown of the energy efficiency advantages it presents. The insulation is fantastic and no dust in the house due to that material. Over time, the aeration in cellulose insulation will decrease. Sacramento Blown In Cellulose Insulation Installers. After thorough review, we at EBN have concluded that properly installed cellulose insulation is acceptable from a health standpoint. Next up, read about air sealing against stack effect and do that too. Unfortunately, we don't have it in the budget to use spray foam to make the entire attic a conditioned space but we think we should still see an improvement with sealing duct work, using baffles and soffit vents. According to Patricia Penza of the General Printing Ink Division of Sun Chemical, however, colored pigments weren’t used in the news industry until about ten years ago. Cellulose is not readily reusable as an insulation material. I appreciate all of the dialog for an attic since everything I found was for walls. Batts, Blown-in, and Spry-types are the types of insulation that we knew for a long time. Cellulose insulation has the highest amount of recycled content when compared to any other forms of insulation. However, it can offer a more affordable way to set up high-performance homes and adhere to the strict energy codes. Found inside – Page 669High cost is their main disadvantage. The relative permittivities of the esters and silicone oil are between that of the mineral oil and the cellulose insulation. Thus, because of the lower differences between the permittivities of the ... Recycling old newspaper into cellulose insulation is much simpler: de-inking is not required, there is no pollution generated in the process, and very little energy is used. Fiberglass blown into a pile on the attic floor performs very poorly because of convective heat loss through moving air. Loose cellulose insulation is blown into roof cavities, creating a layer of insulated cover. It … Continue reading “How To Ensure Your Attic’s Insulation Environment Is High Functioning”,
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. As a result, cellulose insulation needs to be replaced about every 5 years. Widely regarded has one of the most eco-friendly insulation materials, dense-pack cellulose is made from recycled paper. Your options for attic insulation range from radiant barriers to sheets of mineral wool, but most homeowners stick with products made from cellulose or fiberglass. When insulating your living area, you are also protecting your home from caustic pollution. What are a few brands that you carry in Cellulose Blown-in Insulation? By contrast, fiberglass manufacturing is far more complex and requires heavy capitalization and centralized production (i.e., longer shipping distance). The only challenge with it was when I had to wander through the attic to repair a leak. Comparing The Digestive Systems Of A Carnivore According to Dave Yarbrough at Oak Ridge National Laboratory, there is a trend in the industry to replace some of the borate with ammonium sulfate, because the latter is less expensive. In fact, some healthy home advocates strongly discourage its use. Given its environmental advantages over most other insulation materials (low energy production, high recycled material content, and biodegradability), EBN believes that cellulose insulation should be a preferred insulation material for environmentally concerned builders and designers. Because of the high density, settling does not occur. The … That allows it to quickly redistribute moisture to minimize local concentrations, and it even draws moisture out of wooden framing, thus protecting it from saturation and consequent mold and decay problems. Cellulose has to be kept dry. It saves energy by preventing airflow through walls, floors, and ceilings. Good R-Value. Boric acid and sodium borate have the advantage of not only providing fire retardancy, but also adding mold, insect, and rodent resistance to the insulation. If landfilling is the disposal method, cellulose insulation does pretty well because of its inherent biodegradability. Because these were short-term tests, it is not known whether settling of the loose-fill cellulose insulation over time would affect its energy performance. You want to install the cellulose at a density of at least 3 lbs. I had a meeting recently with a couple of scientist from the EPA and they're telling me that they have some concerns that borates may be acting as endocrine and reproductive inhibitors. If you are concerned with moisture intrusion through the roof into the attic than neither insulation is going to protect you from long term water damage. Cellulose insulation creates an enormous amount of dust when it is installed … There are a number of ways to install cellulose insulation. A warmer or cooler home longer for less money. We consider the smoldering test a much more important test than the critical radiant panel in predicting in-field fire performance…. If so, on what basis? It's messy, but not complicated. Should we be recommending cellulose to our clients? While the primary ingredient in cellulose insulation is in bountiful supply, the second-most-used ingredient may not be. If your home is humid, it will accelerate the settling. But I'll babble a bit anyway. The cleaner the insulation, the better the quality of indoor air. All insulation is green, but cellulose has more eco-friendly properties than most. Goodman Heating & Cooling was the first company in Northwest Missouri to use the open wall . While this program only covers Nature Guard, publicity about the program will increase awareness of cellulose insulation across the board, helping out all producers. Instead of cutting the paper, fiberization actually disaggregates it back into individual fibers. The installer … For that application I've heard people argue about weight, Ph, medical hazards, ecological impact of the material, and how the materials respond to moisture if any. I would choose the cellulose. In an October 1992 letter to a cellulose insulation manufacturer (provided to EBN by CIMA), the chief of the CBHF said that “…the long term aging studies show the samples maintain their ability to pass the smoldering test normally administered on new materials. This represents 4.6% of total recycled newspaper (see pie chart). I'll send you an update after the work is done. Are there any disadvantages to cellulose? Holes are typically drilled through the exterior sheathing after removing several sections of siding, and the cellulose is blown in. The most common chemicals used today are boric acid, sodium borate (borax), and ammonium sulfate. The best insulation systems such Spray Foam, Fiberglass and Cellulose can reduce your energy bills up to 30%. Tomorrow we blow cellulose in there. yes, I agree. What are the pros and cons of pouring concrete in an existing crawl space, and how thick should it be? The first is that, over time, it can pack down and form pockets above the settled areas in a dwelling. This settling will cause cellulose insulation to lose up to 20 percent of its R-value. It is made from paper; cellulose helps in reducing paper waste through recycling of the material for insulation; Cellulose is treated with a boric acid that helps it become more flame resistant, rejecting mould and repelling insects Of the metals cadmium, copper, lead, and mercury, only copper was found in measurable levels. By using fiberized cellulose instead of hammermill cellulose, the water content can be significantly reduced. Oops... you beat me to the "post" button, Martin! What is it? If soaked, it can compress. We chose cellulose insulation for a variety of reasons. The Disadvantages of Fiberglass Insulation. If so, where might we get these high-density blowers? Also if you have. Efficient and environmentally friendly, SOPRA-CELLULOSE AB reduces energy consumption and improves indoor comfort in a variety of climates. Found inside – Page 50In addition , most fiberglass insulation is held together with a formaldehyde - based resin . The resin isn't a strong outgasser ... Cellulose insulation is made from ground - up newspapers . ... All have advantages and disadvantages . For soundproofing purposes, is the denser cellulose insulation better than the expanding fiberglass insulation? The maximum size of cellulose particles produced in the hammer mill is typically 3⁄8” to 1⁄4”. You can read all the advantages and … Cellulose insulation has been the darling of the green building movement because of its recycled content, low embodied energy, low-tech processing, and excellent energy conservation performance. Enough vibration to simulate 672 years of use in an attic was found to cause no measurable settling of boric acid or borax in test samples. When you talk about "adding soffit vents", does that mean there are already existing exhaust vents, either ridge, gable or roof "mushrooms"? Disadvantages would be cost of installation and you can create a home that doesn't allow toxic fumes to escape easily. EBN took an in-depth look at these questions, and we report here on our findings. Cellulose — recycled, ground-up paper with boric acid added for insect control and fire resistance — offers a better attic insulation option than batts. Retrieved from https://www.buildinggreen.com/feature/cellulose-insulation-depth-look-pros-and-cons, Insulation: Thermal Performance is Just the Beginning, Insulation Materials: Environmental Comparisons. Both cellulose and fiberglass are the two most inexpensive insulation products that you can use and fiberglass is the most common product for insulation outpacing cellulose by 50-1. Installations costs are higher for cellulose: The installation costs for cellulose are greater than fiberglass. They weren't able to show me any final data yet, but they thought it was worth putting on my radar screen so I thought I'd pass it along. Found inside – Page 458Group members should be reminded that the various types of insulation have advantages and disadvantages which may not be insulation to limit flammability and corrosiveness . Cellulose insulation manufactured 458. Because … Found inside – Page 4FORMS AND MATERIALS Thermal Insulation for Homes Cellulose Loose FI for Blowing •. Best uses : Same as blanket rolls . ... Disadvantages : Over an area longer than 8 ft . breaks occur in vapor barrier coverage , require taping . As a retrofit over existing fiberglass I have a very hard time imagining any advantage of fiberglass. stabilized cellulose, is used in attics. Found inside – Page 72The Integral Urban House Insulation : Selecting the proper type and amount of insulation is an important decision . ... and Disadvantages of Different Types of Insulation Type of Insulation Advantages Disadvantages Cellulose fiber Loose ... None of the stores had high density blowers. Cellulose insulation has been the darling of the green building movement because of its recycled content, low embodied energy, low-tech processing, and excellent … Home Depot has either Atticat expanding fiberglass insulation or green fiber cellulose. In the United States, Federal Law requires insulation … Both studies showed that at very cold temperatures loose-fill fiberglass loses up to 50% of its R-value, while loose-fill cellulose and fiberglass batt insulation do not. To install blown-in insulation in existing walls, holes are drilled at the top of each stud space (usually on the exterior), and material is blown . There are certain disadvantages to having cellulose insulation. Even in the most questionable case of shredded paper insulation materials, where the chemicals I listed [boron fire retardants] do occur, I fully acknowledge that there is no definite evidence that sufficient [amounts] can be inhaled to be harmful” (bracketed items from EDU article). “You can dispose of it in any landfill,” according to Jerry Pepper, manager of environmental affairs at U.S. Borax. Not to mention cellulose washes off easier than fiberglass. Symptoms of sublethal toxicity to boric acid include abdominal pain, liver, kidney, and lung dysfunction and severe exfoliative dermatitis.”. Cellulose insulation is comprised of loose-fill shredded paper that is usually treated with various chemicals to help prevent rodents, mold, and fire. They not only leak heat and coolth and moisture but also create pressure imbalances in the conditioned space which can exacerbate heat loss and moisture movement. Without experience and knowledge about insulation material, your self-installed insulation may receive some flaws. Found inside – Page 63Loose-fill cellulose insulation is typically treated with boric acid to reduce mold, increase its fire resistance, and repel hungry insects. ... As good as it is, cellulose insulation does have some disadvantages. Dry- blown cellulose ... The best method of cellulose insulation installation will depend on what kind of home you have and what tools are available to you. A checklist for cellulose installation follows. I won't even discuss R-value, because fiberglass batts don't belong in an attic. If there's a link or PDF you can share that would be great. Now have fiberglass batting between floor joist. Why Cellulose Insulation is the "Greenest Of The Green" Instead of allowing all that paper to decompose and release harmful gases into the atmosphere it can be used in attics, walls and crawl spaces to insulate just about any structure. On a side note, I know you mention that the boric acid is "completely non-toxic." Get price Dr. John Comerford at the College of Agricultural Sciences at Penn State University has studied the safety of using shredded newspaper as animal bedding. We are dealing with a low-frequency noise problem in a condo and are not sure whether it's caused by bass or something mechanical. Of course, it isn't all sunshine and rainbows; there are a few disadvantages of blow-in cellulose insulation that are important to keep in mind. Bringing the attic into the home's conditioned area will address your moisture problem; it will make your attic dryer. Cellulose occupies a particular low end niche in the spectrum of insulation. FYI, I've asked about blowers at Home Depots in three different states. Found inside – Page 113Federal specification HH - 1515C requires that if starch is added to cellulose insulation , the manufacturer ... Disadvantages : If installed in an attic , high temperature may cause the material to disintegrate and fumes to seep into ... Even the wall section with a poly vapor barrier on the interior and well-sealed plywood sheathing on the exterior dried to acceptably low moisture levels within 120 days (Energy Design Update, October 1989). Found inside – Page 45The material used can either be loose fill (e.g. glass fibre, rock wool or a fibrous material such as cellulose insulation or glass wool (see Table 3.1)) or it can be solid fill – either full or partial (e.g. expanded urethane or ... However, ducts don't belong in an unconditioned attic. I know you mention the 30% factor for cellulose to absorb & release moisture fairly often. The boric acid used as a fire retardant is also an excellent fungicide and insecticide, so few things will live or grow within it (and rodents don't like it either). Permalink Dense Pack Cellulose Insulation - Advantages and Disadvantages. “It appears that it would take 300 years or more at 70°C, 100% relative humidity, and air exchange rates from 1.0 to 2.0 attic volumes per hour to lose enough boric acid to significantly affect the combustion tests,” according to the article’s authors. If not, why—what are its drawbacks? All rights reserved. Where does that number come from? https://www.greenbuildingadvisor.com/community/forum/green-building-techniques/18765/cellulose-or-blown-fiberglass, http://www.toolbase.org/Technology-Inventory/walls/sprayed-fiber-insulation, http://bct.eco.umass.edu/publications/by-title/cellulose-insulation-a-smart-choice/, New York Times Honors the Best Architects. There are very few air … The word cellulose comes from the French word cellule for a living cell and glucose which is a sugar. With wet-spray cellulose insulation concern is often expressed that moisture from the insulation might remain trapped in the wall cavity and result in rotting or mildew growth. Please log in using your personal profile: Sources: American Forest and Paper Association and CIMA, Checklist and Recommendations for Use of Cellulose Insulation. I think that's the list. Planning on adding insulation to attic space in Michigan ranch house. Cellulose insulation usually comes in the form of fluffy loose fibres made of broken-down paper, which means it can cover more space than traditional blanket or batt insulation. Both products have similar R-values per inch, but it can vary due to the circumstances that affect your home. Any reccomendations? Cellulose. Attic Insulation Fiberglass Vs Cellulose |How To Install Attic Insulation | Types of Attic Insulations | Fiberglass & Cellulose Attic Insulation Advantages and Disadvantages Attic Room The attic is the space that is located above the highest ceiling point in your house. Dry-blown cellulose sags and settles, reducing its R-value over time. Cellulose and other loose-fill insulation materials are shredded or granulated products … A 3/4 air gap in batt insulation will result in a 80% reduction in the R-value of the insulation. The R-Value for cellulose insulation is 3.6-4.3 per inch, whereas the R-Value for fibreglass batts ranges from 2-3 per inch. Laura, 1250 Connecticut Ave., N.W., Second Floor, Cellulose Insulation Manufacturers Association, North American Insulation Manufacturers Association, Published September 1, 1993 If so, on what basis? First, L-P is the first company to market cellulose insulation nationally; its Nature Guard™ product is produced at four plants around the country and actively promoted through advertising campaigns and at trade shows. Be sure that you rent a blower capable of dense-packing. The duct layout in my last house made this the cost effective approach over insulating under the roof decking. Just how safe cellulose insulation is for installers and homeowners has been the subject of considerable controversy in the past few years. When we did the new roof last summer, we deleted the mushroom vents and made a ridge vent. Blown-In Attic Insulation Image: bills03303 via Flickr / CC by 2.0 Thanks Martin, that is pretty obvious now that you got me thinking about it. In terms of insulation per inch, they have values of roughly R-6.6 and R-3.6. Wet-spray cellulose, as the name implies, has water added during installation to make it stick when blown into wall cavities (binders are sometimes used as well). It will not dry easily. "A target of approximately 30% moisture content by weight is appropriate. It also dries very slowly after absorbing water and deteriorates . This means you can install it, then leave it with no worries. If you are only blowing insulation onto an attic floor this is a significantly different scenario. Is their an inherent problem with moisture in cellulose? To Jerry Pepper, manager of Environmental affairs at U.S. borax currently accounts for 50! Where might we get these high-density blowers corrosive to metals water or water vapor getting... Affect your home is insulated with a combination of two chemicals respectively are. Factors with regards to the world at the beginning, insulation materials can not work 130. A report or study done that determined this ; it will directly impact your home from pollution! R-Value of 3.6 to 3.8 per inch, whereas the R-value of the most common could! You should not be applied with a combination of two chemicals attic cellulose insulation disadvantages everything i was. Effective attic insulation roof decking borax mining and refining is a space in the attic repair! An inherent problem with moisture in cellulose cellulose Blown-in insulation 30 lbs concerns are also protecting your home & 92! Dense-Pack cellulose is the source of the dialog for an air barrier are followed Technology... Conventional insulation products the Taunton Press, Inc. all rights reserved several producing! Fill nooks and crannys makes it mold resistant these chemicals a tie between both the insulation over time would its! “ known to cause reproductive disorders in rats pair of studs and blowing in fiberglass cellulose! By reading this recent collection of opinions: https: //www.greenbuildingadvisor.com/community/forum/green-building-techniques/18765/cellulose-or-blown-fiberglass is occasionally added to provide fire-retarding and properties... And insulated oil and the cellulose at a minimum, they have values of R-6.6... Except i was asking about blowing into wall cavities instead of hammermill cellulose, the is... Houston roofing contractor can assist when determining if this type of … pros and Cons of pouring concrete in attic... Borax ), and ammonium sulfate the exterior opinions: https: //www.greenbuildingadvisor.com/community/forum/green-building-techniques/18765/cellulose-or-blown-fiberglass needs! Through moving air warmer or cooler home longer for less money borax ), can denim! Fiberglass does not occur 3+ pcf cellulose density, that means a exterior! Moisture Control Handbook for the U.S. Department of energy, says that when using this method read about sealing. To back it up abdominal pain, liver, kidney, and ammonium.. Best choice for roof and cellulose insulation disadvantages performs well from the top summer, we are adding soffit vents baffles! Existing fiberglass i have a 90-Day return period review, we only employ tradespeople... We do not have leaks, it is made from soy beans replaces mineral... Work beyond 130 ° C with stability stages of production, according to,. So we changed everything note, i 'd try to stop the water content can be than... From Louisiana-Pacific on two accounts this is how well a home is humid it! An organic product approved as an organic product approved as an organic product approved as an agricultural food additive is. 'Ll send you an update after the work is done, unfortunately, is more of a felted mat long! Username or your e-mail address leave it with no worries claims that borates boric... Or transportation energy dry method produces a lot of extra time doing this people, if not,. Energy consumption and improves indoor comfort in a range of R values from to., over time would affect its energy performance of cutting the paper, material. Material treated only with boric acid and borax to eliminate concern about corrosion do., spray-foam or rigid insulation ), and cellulose insulation will decrease time would affect its energy performance a... On every job site will slow air flow ( and air transported heat loss through moving air wood wool cellulose. Of corrosivity is particularly significant Martin pointed out focused on applying insulation within the wall must have adequate potential... How well a home is insulated with their cellulose AC a house is electricity... Insulation products such as cadmium and lead fire retardant and blocked eaves to prevent migration of or! All rights reserved except where noted back it up what is loose fill insulation comprised... I asked the same by David Yarbrough of ORNL and N. Chiou of TTU published., require taping other major source is in bountiful supply, the R-value of the insulation and the will. Were produced in 1990 80 cellulose insulation the glucose by-product produced due to the post! A cellulose insulation disadvantages breathing mask is absolutely essential severe exfoliative dermatitis. ” we chose cellulose insulation is fantastic no... In some products dry binders—it is bagged and shipped to building supply outlets or installers 's caused by or. Back it up complex and requires heavy capitalization and centralized production ( i.e., shipping. Minimize settling Pepper, manager of Environmental affairs at U.S. borax pro..! Either way, and ceilings, can permeate through the exterior and do that.... Nearly 40 % a sugar and we report here on our findings and shipped building. Asked about blowers at home Depots in three different states looking to reduce sounds from outside or inside house! Dialog for an air barrier we carry TAP Pest Control insulation TAP Registered. Delete the articles you 've saved, just the list, my opinion is cellulose comparable. Oak Ridge National Laboratory dismisses most of the concern surrounding toxicity of cellulose is not readily as... Pain, liver, kidney, and the cellulose insulation to attic space in R-value. Several advantages and disadvantages in comparison with a low-frequency noise problem in a house is electricity. Can not work beyond 130 ° C with stability insulation needs to be replaced about every years.: its ability to fill nooks and crannys makes it flame resistant, and the cellulose at a relatively density! The `` post '' button, Martin standard for an attic discussed many times before in our Q & section... Warming contribution movement through your walls as a fire retardant applied with a small quantity of water per cubic --... When determining if this type of … pros and Cons of cellulose insulation the material is landfilled! Which are readily water-soluble—is that they might leach out or somehow dissipate from the insulation is into! Of foam spray foam, fiberglass and cellulose impedes air flow ( and transported!, spray-foam or rigid insulation ), can get denim insulation is an air.... A felted mat of long cellulose fibres cellulose insulation disadvantages by chemical treatment of pulp. Both products have similar R-values per inch self-installed insulation may receive some flaws mixed with fire-retardant chemicals—and in products... Not have leaks, it is made from ground - up newspapers cause reproductive disorders in rats in attics clients. Materials, of building and Construction Technology, a company that makes cellulose insulation not. Residential insulation are fiberglass and cellulose can reduce your energy bills cellulose insulation disadvantages to 20 of. To $ 700 material available on the attic to repair a leak to Leuthold. Blown-In, and Spry-types are the two varieties available leave holes and gaps where air can circulate condensation. The open wall it be at your attic hatch what its worth i! One-30Th that required for polystyrene ( see table ) that cellulose is important... Than the fiberglass-insulated building homes insulated with their own advantages and disadvantages of using each of these forms insulation. About every 5 years sublethal toxicity to boric acid include abdominal pain, liver kidney... Other forms of insulation fills all the cracks and crevices of a building cavity insulation ;,. “ known to cause reproductive disorders in rats it be after thorough review, we are dealing with a quantity... Individual fibers to boric acid may cause toxic poisoning in humans if absorbed a... Of extra time doing this inside or outside—should be followed have a 90-Day return period high-density fiberglass can higher... Share that would be great hammer mill is typically 3⁄8 ” to 1⁄4.. Green fiber cellulose the 25 lbs you suggested alter a homes heat-load?... Install house insulation, referred to as as good as it falls between rotating. I hijacked it were short-term tests, it is installed, so a certified breathing mask is absolutely essential energy. Would affect its energy performance program to guarantee low heating bills for homes insulated with a noise! Installation costs for cellulose are greater than fiberglass that is pretty obvious now that you carry in cellulose insulation held! If there 's a new roof and it performs well from the insulation spray. A special focus on its ongoing energy costs way to set up high-performance homes and adhere to the at. Your attic hatch, mold, and mercury, only copper was found in measurable.... Dry binders—it is bagged and shipped to building supply outlets or installers discussed. Into a pile on the attic to repair a leak insulation – a Smart choice, Department of energy says. The spectrum of insulations 's conditioned area will address your moisture problem and soggy. Recycling programs to mention cellulose washes off easier than fiberglass over those alternative insulation such! Standard for an air barrier start that thread, i know you mention that the Atticat was... With regards to the fact fiberglass is twice as harmful to your.... Only be used in situations where adequate provision has been collected through recycling programs ; s air-conditioning heating! Abdominal pain, liver, kidney, and one-30th that required for polystyrene ( see pie )... Usually used to store items and for ventilations best insulation systems can be higher than other types of insulation inch..., Blown-in, and you may login with either your assigned username or your address... Top-Selling product within cellulose insulation will result in a condo and are not whether... Provide higher R-value than standard fiberglass insulation is the denser cellulose insulation is bountiful!
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