If you press the material into the ductwork, you are going to reduce its effectiveness. It offers a high tensile strength core for improved handling and easy installation. Before beginning, read the product instructions and follow wherever they deviate from general duct insulation guidelines: Once your ducts are sealed and insulated, you can have a technician retest your ductwork if you desire. Measure and cut your duct insulation a little large to allow overlap at every seam, both lengthwise and on the ends. So, if you find yourself asking does exposed ductwork need to be insulated?, does ductwork need to be insulated in conditioned space?, or do HVAC return ducts need to be insulated?, the answer is positive. The Department of Energy provides excellent tips onchoosing your technician. Mark problem areas with a marker or chalk. Wherever theres a joint or intrusion, use sealant. The result is higher utility bills, wear and tear on the heating and cooling system, and difficulty maintaining the temperature inside your home. I am not the biggest fan of fiberglass insulation for rigid ducts mainly because of its compressibility. Transportation Fiberglass Mat for: Once installed, duct wrap insulation continues to save energy throughout the life cycle of the HVAC system. Duct board, much like the duct liner, is also a fiberglass product. At Johns Manville, were committed to the details that matter to you. When specifying HVAC insulation, your goal is to reduce heat transfer. Polyolefins (PP, PE) If the ducts are damaged internally, say by mechanical cleaning, for example, then the ductwork would simply need to be replaced. Click links to access technical specifications, safety data sheets and documents. Once you determine that your duct needs insulation, consider the type of insulation you want. Recycle Content: 26% Warning! Long-lasting and Non-corrosive: Inert fiberglass will not deteriorate or provide sustenance for vermin or rodents, and it will not corrode the sheet metal it insulates. the images shown may not exactly replicate the corresponding color, texture or appearance. Following a discussion of the body of knowledge, the expert panel reviewed the RoC listing criteria and made its recommendation. It is recommended for HVAC system exteriors or surfaces where design parameters prohibit the use of liner or board. External Duct Insulation The primary use is for outdoor duct work insulation applications as the rigid board allows you to install an exterior jacket over the insulation board and still hold shape. Due to variation in computer monitors, mobile devices and printers, Quiet Operation: ToughGard duct liner helps absorb equipment and air rush noises over a broad spectrum of sound. Get free, zero-commitment quotes from pro contractors near you. History Heritage Perlite When insulating HVAC ductwork, use a foil, faced fiberglass insulation with an R-6 or higher R-value. Make sure that the ductwork is not covered in dust and that there is no moisture. Developed to line large sheet metal ducts and plenums, this rigid, board-type insulation consists of black resin-bonded glass fibers with a smooth, durable black mat facing applied to the air stream surface. Have questions about buying, selling or renting during COVID-19? This thermosiphoning air collector plan also includes using air from the basement to enter the cold side of the TAP. texture or appearance ask to see the actual product, available through a CertainTeed contractor or distributor. How Much Does Duct Insulation Cost? 2023 - Forbes Home Fiberglass Additionally, the lightweight foam makes it easy to fabricate and install. As the name suggests, they are made of sheet metals which are usually galvanized steels. When insulation is squeezed, flattened or compressed, its R-value drops tremendously. Insulation, if installed properly, also does a great job at preventing condensation. Duct Insulation Knives are designed to smoothly cut fiberglass insulation. The tape can be used on applications that operate within a wide temperature range: -20F 260F/-29C -126C. This has led me to keep an eye out for alternatives and Ive see a few with Owens Cornings Paroc being one of the more appealing options. PSK Duct Wrap Seaming Tape is designed to provide a vapor barrier seal on JMs White & Black PSK-faced Microlite duct insulations. We also provide an ARTICLE INDEX for this topic, or you can try the page top or bottom SEARCH BOX as a quick way to find information you need. Use a simple utility knife to cut your insulation to the right size. JMRoofing.News, Nonwovens Sound absorption characteristics, helping reduce noise transmission. Snap a plastic cap onto the duct end, then slip the preformed insulation over the duct. Secure the insulation with short strips of foil tape. Specs, Flashing Details and Assembly Plates How can we improve? And in case you are planning on leaving the ductwork there, then you would definitely need to insulate the system. C916 Adhesives for Duct Thermal Insulation . The first thing that you have to do is find and repair any leaks. Even though the installation process might cost you a lot of money, in the end, it will definitely be worth it as high-quality duct insulation will help you save a small fortune on your electricity bills. You must be a magazine subscriber to access this feature. Use one hand to. Canada (All Products) Experts recommend sealing your ductwork before getting the insulation installed. Back CertainTeed Sustainable Insulation is GREENGUARD Gold Certified for low chemical emissions into indoor air during product usage. Duct insulation . At Johns Manville, we are committed to delivering the industry's most complete line of HVAC insulation for both commercial and residential buildings. Made from 1- to 2-inch-thick sheets of rigid glass fiber and coated with an aluminum laminate for a moisture/air barrier, duct board comes in sections that fit together like metal ducts. (1), ** total_quantity ** | ** unit_price ** / ** unit_measure **, Fiberglass Pipe and Tank Insulation (ASJ White Faced), Radiant Barrier Bubble Wrap R4.2 (R6 w/spacer), Fire Barrier Pillows, Putty Pads, and Pipe Collars, Intumescent Coating Thermal & Ignition Barriers, Fiberglass Duct Wrap Insulation (FSK Foil Faced), Radiant Barrier Bubble Wrap R4.2 (R6 w/ spacer) for Duct Insulation. If the old insulation is in poor condition, remove it and replace it with new insulation. Keep in mind that it is better to over-seal than to have a remaining leak. Where the table calls for rigid duct insulation the rigid insulation may be reduced by " for every 1" of liner. However, do bear in mind that in order to take advantage of the barrier, you would have to leave 2 inches of air space between the duct and the foil. When overlapped 2 to 3 inches and secured with tape, each joint should be very secure and leak-free. Use more than one layer if a single layer wont give you the value you desire. This field is for validation purposes and should be left unchanged. HVAC Insulation 2023 The Taunton Press, Inc. All rights reserved. Some compression is unavoidable, such as around bends. Duct Board: Fabricated into the duct itself, duct board offers both sound and thermal control. Heat rises and if it starts in the ceiling, it doesnt really have anywhere to go. Product Description 800 Series Spin-Glas board is easily fabricated for an excellent finished appearance on duct and equipment systems. Its our mission to challenge conventional thinking and create innovative insulation solutions that shape the way we live and build in the future, with care for the people who make them, the people who use them and for the world we live in. Whats The Cause Of Clicking Sound From Air Vents When Heat Is ON? Warning! The material is relatively thin, but it dampens sound very well and, if you ever need to, can be used with other types of insulation. Danny Lipford is a home improvement expert and television personality who started his remodeling business, Lipford Construction, at the age of 21 in Mobile, Alabama. Facings Also, local building codes are gradually beginning to require that new houses have a whole-house and duct blower door test performed. Leaks also tend to be common close to the blower fan and where the ductwork emerges from the furnace. Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia. Contractor Portal What R-value should you go for and will you manage to insulate the ductwork in your house all on your own? Greenguard: Gold. (Service temp: 250F), Polyisocyanurate foam board designed to insulate rooftop ducts and HVAC equipment. Ability to enhance a thermal enclosure for comfort and efficiency. All you would have to do to install it is disconnect the elbow to get the end of the duct exposed, then snap a cap onto the end and slip the insulation over the duct. Accessories Resilient Flooring, Polyester Nonwoven for: Submittal Wizard Thickness:1" - 4" The nails are poked through the fiberglass material and then tapped with an arc . If the ductwork has been sealed, your insulation is going to be more effective and will serve for longer. Specifically designed to insulate rigid or semi-rigid round ducts, it is an excellent method for reducing heat or cool loss and condensation build-up. Refer to CertainTeed installation manuals or CertainTeed specification sheets for installation guidelines. Matching White PSK seaming tape is available, click on the accessories tab to learn more. Advanced Composites All exterior exposed ductwork shall have an aluminum jacket installed to . If the speed is too high, you can switch the wires to reduce it. Where the sections of insulation join together, apply tape all the way around the joints by sliding the tape under the duct, then peeling off the paper backing once its in position. Metal Building The minimum order quantity is one master carton (100 knives total). I have heard that rigid insulating board can be used to construct heating ducts (or air conditioning ductwork). Crow and D. G. Ahearn, "Colonization of fiberglass insulation used in heating, ventilation and air conditioning systems". How to Insulate Ductwork - This Old House If you wish to report an issue or seek an accommodation, please let us know. No appointments. Preferred Accounts The standard way to insulate rectangular ducts in the commercial world is to use a sort of compressed rigid fiberglass board with a white facing, which is usually attached to the ducts using a special fastener that looks like a nail with a wide washer-like head. In stock R-value is the measure of the ability of the insulation to prevent heat from either penetrating or escaping the object insulated. Mark any holes and also the spots that have become discolored or have rust on them (they indicate a possible future leak). The Microlite PSK Duct Wrap Seaming Tape is designed to provide a vapor barrier seal on JMs PSK-faced Microlite duct insulations. An even, generous layer helps ensure your duct will never leak again. Zillow, Inc. holds real estate brokerage licenses in multiple states. Building Insulation Commercial Building The cost of insulation would depend on a few factors the material, the R-value, labor, and so on. Tip:you can attempt completing the job on your own if its a small project. Permeance: 0.02 Having your ducts tested adds to your expense, of course, with most professional inspections running $100 to $200. Learn how to install fiberglass batts, rolls and other insulation into attics, walls, and more. R Value: 4.2 (1.5") The duct board sections are stapled together and sealed using pressure-sensitive aluminum foil tape. FOAMULAR 250 XPS Foam Board Insulation - Owens Corning The surface of each product can be easily and effectively cleaned with industry-recognized duct cleaning equipment and procedures as outlined in the North American Insulation Manufacturers Association (NAIMA) Duct Cleaning Guide. Home-Buying Lingo You Should Know, A DIY Guide to Concrete Pavers for Driveways, Do Not Sell or Share My Personal Information, 442-H New York Standard Operating Procedures. Koolduct System - Kingspan Your joists or wall studs may actually form the duct run if a portion of your HVAC ductwork is missing or the air may simply pour out to the exterior. JM's New R-12 Duct Insulation Portfolio | Johns Manville Designed to wrap the duct, providing excellent thermal properties, energy conservation and condensation control. The Source - Insulation Intel, For Professionals Let the mastic dry, if you have used any, and only then continue with installing insulation. Slovakia, Who We Are Use a utility knife to cut foil-faced fiberglass insulation to the proper size. 67 Products About Selecting Thermal Insulation More Flexible Fiberglass Duct Insulation Sheets Wrap rectangular and round ductwork with this flexible insulation. Please switch to a supported browser or download one of our Mobile Apps. This saves natural resources and reduces emissions into the atmosphere. (Jan 3, 2013) Lou said:Our son' s home in Austin was built in 2006. So, in a lot of cases, you wouldnt have to worry about insulating this part of your ductwork. Thermal Conductivity (k): 0.22-0.24 As a rule of thumb, the more extreme climate you live in, the more insulation you should add. It also keeps the heat out of the home (or duct). Document Library, Careers Submittal Wizard Simmons, D.L. In addition, the recycled content of CertainTeed fiber glass insulation meets the EPA minimum Recovered Material Guideline for fiberglass products consisting of preconsumer and post-consumer glass cullet. Still, spending the money will end up paying off in the end. Following these guidelines and installing everything properly guarantees that your second test will blow the first away pun intended but better yet, your utility bills will show the difference. Work from the furnace or air unit back to the last (farthest) register in the home. Our duct wrap is available in a variety of densities, thicknesses and with or without facings. Sealing and Insulating Your Ductwork - Zillow SmartBinder - Resource Library The thermal resistance depends on the type of insulation, its density, thickness, and on how and where it has been installed. Lets have a closer look at what you are paying for: Of course, the longer the actual ductwork, the more expensive the insulation is going to be. Start by turning your heating/cooling system on and feeling along the ducts for air leaks. The foil facer on the insulation operates as an excellent vapor-retarder, working in tandem with the closed cell foam to contribute to a tightly sealed system. Insulating a Wood-Framed Floor Assembly - Fine Homebuilding Lou this is a design and materials unfamiliar to me: plaster inside ductwork around tubes? BURSI Continuing Education Program, Resources In the end, its probably best to buy the blanket insulation. The second mistake is even more common: DIYers often do not understand that they must seal the ducts first. HVAC Duct InsulationMaking Sound Choices The XSPECT ISOfoam APF board is a closed-cell polyisocyanurate foam core bonded to a foil facer on both sides. -- DJ Friedman Advantages of Rigid Fiberglass Duct Board Create distinction with a wide offering of accent and decorative trim products from both composite and vinyl product lines. In response to the industry's need for an R-12 duct liner, Johns Manville created the first-ever, R-12 flexible fiberglass duct liner insulation, 3" Linacoustic RC and the first R-12 duct wrap insulation, 4.4" Microlite FSK Duct Wrap. Sometimes, more than one type of fiberglass can be used in a single system. It is recommended for HVAC system exteriors or surfaces where design parameters prohibit the use of liner or board. This Old House plumbing and heating expert Richard Trethewey helps a homeowner insulate his HVAC ductwork. You can get rigid fiberglass pipe insulation that is preformed into half circle shaped sections, but I dont know if it would fit ductwork properly. You can be assured you are getting the same superior performance from the facing as the insulation because we manufacture both to the highest quality standards. Unfortunately, so many houses especially newer homes end up with ductwork running through the attic. This was everything that you need to know about ductwork insulation. Sizes: 48"x96", 48"x108", 48"x120" Industrial Mineral Wool Some duct testing companies will seal the ducts for you, eliminating leaks and holes, as either part of the service or for an additional fee. A comprehensive roofing specification writing tool allowing users to quickly write accurate steep- and low-slope roofing specifications for job submittal packages. Ideas & Inspiration Installation Planning Video How to Insulate HVAC Ductwork This Old House plumbing and heating expert Richard Trethewey helps a homeowner insulate his HVAC ductwork. Data Sheet SDS HVAC Product Guide 800 Series Spin-Glas Fiberglass equipment and duct insulation (service temp: 450F) Data Sheet SDS Mechanical Product Guide Microlite White PSK Duct Wrap Simple Ways How To Fix Noisy Air Vent In Bedroom? R-value of insulation refers to its thermal resistance. So, make sure to take your time. Permeance Rating:1.3 perms. Carpet Tiles, Filtration Products Due to the drastic temperature changes, condensation might appear on the ductwork and that is something that must be avoided at all costs. Spread duct mastic or sealant across the duct seams, joints and very small holes. Ductwork Insulation: Everything You Need to Know - HVAC BOSS Flexible fiberglass is wrapped around the air ducts. Woven Fabric Reinforcement. In a nutshell, the higher the R-value, the better the insulating effectiveness. Your home has ducts in the attic if there are vents in your ceiling. If the rigid foam seams are carefully taped, the foam layer can also act as the floor assembly's exterior air barrier. It is recommended for exposed applications inside the building envelope, such as open ceilings with exposed duct work. Generally called a duct blower door test, the technician seals the air intake and outlet registers before blowing air through the system. Start with clean, dry ducts. Flexible duct wraps should be used on indoor duct work insulation only. Insulating ductwork elbows can be tricky because of the angles that they bend at. https://www.certainteed.com/insulation-insulation/improve-indoor-air-quality-fiber-glass-duct-insulation/, https://www.thermalinsulationfoam.com/sale-11239456-self-adhesive-hvac-insulation-foam-13-25mm-thickness-long-service-life.html, https://polyguardproducts.com/mechanical/weatherproof-jacketing/. Please refer to the CertainTeed ToughGard Limited Lifetime Warranty. Then theres the duct material itself. Make sure to use only the foam that is specially designed for insulating as a lot of foam products can become toxic when burning and are highly flammable.