Metal Building ducting ductwork doityourself Sustainability Are Antique Mirrors Considered a Traditional or a Contemporary Style? For more information about fiber glass duct board, we recommend you reach out to a local distributor or find a manufacturer and visit their website. Ceiling Tiles With mastic, metal is pretty tight. Recycle Content: 13% Brochures, Case Studies and Bulletins This ad space accepts up to 10 ads that rotate in a random order on the main sidebar of the site. Constant irritating noise from the HVAC unit should be a major concern. The longevity of a material plays a huge role in an HVAC unit. Insulated Flexible Air Duct 7" X 25' R6 Flex Duct, Master Flow 24 in. Be sure to follow Insulpedia on social media for more information on mechanical insulation products and systems. Moreover, it harms the material itself. To help prevent excessive mold growth and to ensure that the system is functioning correctly, its important to keep the rigid ductwork maintained. We offer a great selection of HVAC duct insulation products from leading brands. Noise cant transfer from one place to the other through such material. Recycle Content: 13% Honestly, you can select the best material when you are well aware of what you want out of your HVAC unit. Weve sorted the advantages you should get from both of the materials. However, because it uses more high-quality pieces, rigid ductwork tends to be a bit more expensive to install and operate. duct ductwork sealing insulation foam air services repair attic solutions ducts spray efficiency sealed central much encapsulation energy step cooling Login and visit the Ad Setup Page to view pricing. Most people end up confused with the last two possible options: fiberglass duct board vs sheet metal. Even the most critical fixes are easier to deal with. If your ducts are older than that, check them right away. x 24 in. However, a perfect installation might be more efficient than the fiberglass duct board. Moisture or dampness allows mold and bacteria to build up. Homeowners and occupants will enjoy the benefits of improved comfort, while installing contractors will find JM duct board is easy to fabricate for faster installation. Fiberglass ducts can also be an ideal place for mold and bacteria to grow. Posted on Last updated: February 20, 2022. x 24 in. Duct board is a semi-rigid fiberglass insulation material often used for residential or light commercial heating and cooling applications in lieu of metal duct. At Johns Manville, we believe in providing not just better products, but also better solutions. Codes Corner Mechanical Insulation Fiberglass Mat for: After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. Hopefully this comparison betweenfiberglass duct board vs sheet metalhelped you. insulpro insulation This premium section accommodates up to four ad spaces and appears at the top of all pages seen by subscribers and unregistered site visitors. Common characteristics include: Duct board is manufactured in sheets which are fabricated into the same rectangular shape as traditional sheet metal duct. Repairing sheet metal air ducts can be easier in this case. Filtration & Separation Also, feel free to add a question to the comment section below because we can put you in touch with someone that can answer your questions. Generally,a quality HVAC unit lasts forat least 10 years. Copyright 2019 DALE HCS | All Rights Reserved, Keeping Cool Without Spending a Fortune this Summer, Maximizing Your HVAC System to Help Allergies, Air Conditioner and Heater Repairs & Installations. Training Resources duct fiberglass insulation brushing wrap fabricated shown being Sound waves cant travel freely about the system. As with any product, you should be sure to reference the installation instructions from the manufacturer of the product youre using. For Our Suppliers, Fiberglass duct board with a black-colored airstream surface (Service temp: 250F), Mat-faced, fiberglass duct board (Service temp: 250F), Fiberglass duct board designed for modular housing (Service temp: 250F), Mat-faced, fiberglass duct board with antimicrobial coating (Service temp: 250F), Specification & Design Assistance Request, Specs, Flashing Details & Assembly Plates, Specification and Design Assistance Request, Specs, Flashing Details and Assembly Plates, 2022 Johns Manville. If you need to repair a fiberglass duct board, it can be a hassle. This space measures 1080 x 150 pixels, spanning 100% horizontally from the left edge to the beginning of the sidebar and appears after the content of an article, press release etc. Slimduct professional grade construction offers strength and longevity every, Aluminum Dome Caps are both lock washers and protective caps that conceal the sharp end of a pin.&nb, Johns Manville MicroLite FSK FiberglassDuct Wrapis a thermal and acoustical insulation b. Gripnail PowerPoint weld pins are used to fasten insulation to the inside of sheet metal air ducts. Building Owner Resources Youre seeing this ad based on the products relevance to your search query. JM diffuser board provides excellent thermal and acoustical performance. Pricing Options: Pay Per Month (Increments of 30 days). Technical, Guarantee & Warranty Services The Source - Insulation Intel, HVAC Insulation The Source - Insulation Intel, For Professionals Industrial Mineral Wool Unlike flexible ductwork, rigid ductwork doesnt make loud noises when air passes through it. Facings There goes all the information among the two best materials for the ducts. So, you wont have to change your ducting frequently. Board and Blanket Insulation Time starts to affect the HVAC units no matter what the material is. Duct Liner Price and other details may vary based on product size and color. Here are some of our favorite tools used for sheet metal duct installation: The installation process of fiberglass duct board is messier than sheet metal. Pipe Insulation In the future, you dont have to worry about the tightness of metal. Join the list to receive special offers, be alerted to new products, and receive general product knowledge. The tools and the materials both can be a concern for your safety. Fiberglass duct boards already come as insulated. Commercial Building Below are a few of the subcategories for these HVAC Insulation materials: Slimduct professional grade construction offers strength and longevity everyone can appreciate. Airflow creates a vibration on the metal surface and it starts to get noisy. Insulating in the basementor closed spaces like that is a real challenge. duct fiberglass insulation brushing wrap fabricated shown being insulpro insulation Only logo images are accepted for this space, which will display on a desktop device at 150 x 150 pixels. Building Insulation You may wish to simply lead visitors to your homepage with a large logo image, or it might be more effective to draw them in with a problem for which you have the solution. Peak Advantage Contractor Portal Login Well, you can reduce the sound of the noisy air duct. Industrial Insulation Moisture wont be an issue for that material. Products Johns Manville Micro-Aire duct board is used to fabricate ducts for commercial and residential construction and delivers excellent acoustical and thermal performance. Residential Building Since the fiberglass loosens up, it takes more energy for the HVAC to pass air. Specialty Thus, prevents condensation from happening. A piece of advice, avoid the carcinogen fiberglass if youre a health concerned person. PVC Products and Fittings Because everyone hates massive electricity bills at the end of the month. History Heritage JM Peak Advantage Contractor Program HVAC Equipment This is ensured by the Environmental Protection Agency (EPA). duct ducts branch distribution hvac flexible triangular boxes metal performance provide solution cost low stan johnson branching runs suit built It provides a number of performance benefits to HVAC contractors, as well as residential and commercial building occupants. Shipped with E3 Pallet Technology. Specs and Details When installing sheet metal, youve to make sure that the space is unconditioned. But you cant get rid of it. There are up to four spaces available which will appear in random order, one on top of the other with spacing between. Gaps Between Baseboard and Floor: Guide for a Perfect Fit! XPS Extruded Polystyrene Board Sealing Joint Tape, Slimduct 3.75" x 6' Duct Line Set Cover White, Owens Corning 703 Fiberglass Acoustic Board 1" (3#), Owens Corning 703 FRK Fiberglass Acoustic Board 1" (FRK FACED), Multi-Seal 180 Insulation Anchor Pin Adhesive, 1-5/8" Self Sticking Insul Hangers w/Washers, 2-1/2" Self Sticking Insul Hangers w/Washers, VentureClad 1577CW Jacketing Insulation Cladding Tape. Polyisocyanurate Insulation R-value: 6.5 (1.5") We recommend to use caution and seek the advice of qualified professionals. Advanced Composites Rigid ductwork is made up of various materials that are then filled with insulation. Thermoset Composites, Advanced Composites Office Interiors R-value: 6.5 (1.5") Codes Corner You cant use a fiberglass board in damp areas and expect it to last. Submittal Wizard Fiberglass duct board is usually a contractors second option. JMRoofing.News, Nonwovens Insulpedia LLC, its administrator, and contributing authors exchange no funds for adding Articles, Press Releases, Product Q & A, Project Profiles, Image Galleries, or Videos to Insulpedia.com. However, sheet metal covers the areas in need of attention and manages to be the most reliable one. HVAC Insulation Our fiber glass duct board offers a high-performance alternative to traditional sheet metal ducts. The longer it lasts, the better it is for your house. Among the two, fiberglass ducts are way better insulated. 3.5 in x 50 ft, Toy Car Road Tape Track for Kids, Great Accessory to Die Cast Cars and Train Sets. Long Fiber Thermoplastics (LFT, D-LFT) This ductwork can survive about 10 years without failing. BURSI Continuing Education Program, Resources SDS Documents, Engineered Products It affects the efficiency of the whole unit in the future. R-value: 4.3 (1") The primary manufacturers of fiberglass duct board insulation include: If you are looking for a sheet or two to repair something in your home or small building, Home Depot is likely your best bet. Home / Archive / Articles / Duct Board: Everything you need to know, Posted by Chad Rebholz | Nov 8, 2019 | Articles | 0. Frost King CF1 "No Itch" Natural Cotton Multi-Purpose Insulation, 16 x 1 x 48-Inch, Triangular Extended Baseboard Return Grill (10" x 6" Duct Opening/ 11 3/8" x 6 7/8" Overall), ProTapes Artist Tape Flatback Printable Paper Board or Console Tape, 60 yds Length x 1/4" Width, Black (Pack of 1), SmartSHIELD -5mm 24''X25ft Foam Core Reflective Insulation Roll, R-8 HVAC Duct Wrap Insulation - Pure Aluminum, Colored Masking Tape,Colored Painters Tape for Arts & Crafts, Labeling or Coding - Art Supplies for Kids - 6 Different Color Rolls - Masking Tape 1 Inch x 13 Yards (2.4cm X 12m), US Energy Products 400sqft (48" x 100') Double Bubble Reflective Foil Insulation Thermal Barrier R8 Vapor Barrier Residential Commercial, Best Creation Glitter Tape, 15mm by 5m, Gold - GTS002, Teacher Created Resources Better Than Paper Mounting Tape, 85in Corner Cable Concealer, One-Cord Corner Duct, Paintable Corner Cord Cover, Cable Management Channel for Wall Corner, Floor Baseboard, Ceiling - 5 X L 17in, Beige, Duck Brand 1379347 Printed Duct Tape, Single Roll, Spotted Leopard, ROSEROSA Peel & Stick Metallic Hair Line Wall Border Self-Adhesive Waterproof Wall Sticker (MG237B : 3.93 inch X 16.40 feet), 4 Rolls 0.6 Inch x 11 Yards Glitter Washi Tape Crafting Tape Glitter Masking Tape for Festival Decoration Scrapbooking, Bullet Journal, Planner, Gift Wrapping (Black), 2.2 Inch x 15 Feet Repair Tape for Wood, SourceTon 2 Roll Wood Grain Tape Repair Tape Patch Wood Adhesive for Door Floor Chair Table (Brown Antique and Natural Oak), Sheet Metal Ductboard Take off Start COLLAR 12" for HVAC Duct Work, US Energy Products 48" x 100' White Double Bubble Reflective Foil Insulation Thermal Barrier R8, Simply Genius (Single Roll) Patterned Duct Tape Roll Craft Supplies for Kids Adults Colored Duct Tape Colors, Blue Wave, Simplex 565-905 4098 4-Wire Duct Detector Board, System Sensor D4P120 - OEM Duct Power Board Only, Quality tape - includes more than the average roll, Ipower Odor Control Exhaust Fan Filter Duct Supply, All customers get FREE Shipping on orders over $25 shipped by Amazon. It needs expensive tools and professional help as well. Sticker with Printed Street to Play on Floors. The installation is cheaper for sheet metal. Bituminous Roofing insulation basement foam materials rigid fiberglass value Our articles, products and services are for informational purposes. SuperDuct RC provides superior acoustical performance, a higher velocity rating and is easy to fabricate for faster installation. Non-crimp Fabric Reinforcement Building Owners Experts will be able to enter the ductwork with the help of tools, like vacuums, hoses, and fans, to suck out debris and clean off any mildew that might be growing in it. In addition, it contributes to a healthier indoor environment through less air leakage and is protected against damage from microbial growth. Traditional metal duct systems must be accompanied by a separate form of insulation. Shipped with E3 Pallet Technology. You can easily use tapes or mastics for tears or easy fixes. Without a proper head-to-head comparison, its quite tough to declare the best one. NRC: 0.85 (R6.5) Winding throughout your homes structure is ductwork. External Duct Insulation Recycle Content: 13% Like they are lightweight, highly insulated, and more. SmartBinder - Resource Library Please use the same scale and upload an image at least 2160 x 300 pixels. Our duct board solutions offer a wide range of benefits to fit your requirements and needs. Aerospace Transportation Larger sheet metal distributors or HVAC distributors often carry this product as well. Vapor Retarder But insulating a sheet metal duct is a costly and time-consuming process. Accessories The airstream surface features a black-colored surface, which provides a smooth interior surface that offers minimal resistance to air flow. Building Insulation Even though its made from durable fiberglass sheets, it does have some drawbacks. Perlite Canada (All Products) Please upload a file 600 x 800 pixels or greater (3:4 scale). SDS Documents, Commercial Roofing Contractor Portal Order TodayInsulate 'Tomorrow'Save Energy & Money in the Future! ducting ductwork doityourself JM Commercial Roofing Blog This 300 x 400 pixel space is highly visible on desktop devices and attracts readers eyes with the rotating movement. It provides thermal and acoustical performance and promotes consistent temperatures for less wasted energy. Chopped Fiber Reinforcement Bituminous Roofing Often, fiberglass helps the sheet metal to insulate in these areas. duct ducts branch distribution hvac flexible triangular boxes metal performance provide solution cost low stan johnson branching runs suit built A well-done sheet metal HVAC unit keeps the consistency of airflow. This is how your ad performance will be displayed. Marine Insulation Self Sticking Insul Hangers are used to fasten insulation material to walls and ceilings. Guarantees and Roof Maintenance Woven Fabric Reinforcement. The rigid fiber of a fiberglass duct board cancels out noises. Also, most professionals are more used to installing sheet metal. You can even apply some paint to this. Sheet Moulding Compound Requirements: The ad content for this section is flexible. Metal sheet ones are made up of galvanized steel or aluminum. It doesnt need any extra hand to heatproof your HVAC unit. The fibrous material can erode easily in the airstream. Core Values To ensure the effectiveness of the installation, the wrap around the duct shouldnt be pulled too tight or too loose. JM duct board dampens unwanted noise and promotes consistent temperatures for less wasted energy. Micro-Aires flexibility and design saves contractors weight and cost. However, the round duct barely keeps any exposed space of the duct wall. Gypsum Boards, Single-End Roving for: Our HVAC Insulation Category is made up of a wide variety of materials used to insulate HVAC ductwork. Your recently viewed items and featured recommendations, Select the department you want to search in, Duct Wye Branch HVAC Ductwork AC Duct Fittings, 8" x 6" x 6" Duct Wye Branch HVAC Ductwork AC Duct Fittings - Galvanized Sheet Metal Duct Connector, Airflow and Ventilation & Fully Adjustable Vent Pipe HVAC Ducting - Easy to Install, Single Wall Galvanized Metal Duct WYE 7"x5"x5" for Connecting Duct Fittings Ventilation Branch. Johns Manville SuperDuct RC duct board is used to fabricate ducts for commercial and residential construction when superior performance is required for more demanding applications. Theres a myth about metal sheets being less efficient. Roofing Shingles On top. Find a Contractor, Contractors JMextraMile Its airstream surface features a black glass mat coated with our proprietary Permacote acrylic coating that is durable, provides improved water repellency, enhanced cleanability and added product protection against microbial growth. Carpet Tiles NRC: 0.7 (R4.3) So lets move on: Fiberglass duct board and sheet metal are the top-notch HVAC materials in the market. You may wish to simply lead visitors to your homepage with a large logo image, or it might be more effective to draw them in with a problem for which you have the solution. Its recommended that you have it cleaned by a professional every five years. Shop products from small business brands sold in Amazons store. Because the tools needed are quite popular and cheaper. insulation basement foam materials rigid fiberglass value On smaller screens where the sidebar appears after the content, the Post-Content Banner will be just before it. If you are a contractor looking to purchase it for a larger project, you might search for a distributor in our directory. Sheet metal might not have many advantages, but its not threatening your health. Use masks, gloves, and goggles especially if youre dealing with fiberglass. Rigid ductwork is often used because of its durability. On mobile devices, the main sidebar appears below the content. So that the place of installation must be safe from moisture. Be creative with this space, but be prepared that your ad is subject to the approval of Insulpedia administrators. Pug,Gray, FIRSTGO-TECH 6 Inch 25 Feet Aluminum Ducting, FIRSTGO Non-Insulated Flex Air Aluminum Ducting for HVAC Ventilation, Fan Filter and Grow Tent 25 Feet with 2 Clamps, Silver, Johns Manville Duct Insulation, Board, Fiberglass, 3 lb Density, 24 in Duct Insulation Width - 17585, Sheet Metal Ductboard Take off Start COLLAR 16" for HVAC Duct Work, TOPMIUM Flexible 4 inch Aluminum Tube, Heavy Duty Four Layer Protection, 10 feet Long, for Heating, Cooling, Ventilation and Exhaust. Find a Distributor, Design Professionals As days pass away, repairing becomes regular for both types of air ducts. Micro-Aire Type LP is protected against damage from microbial growth and the exterior surface is laminated with a tough fire-resistant FSK facing. Theyll suggest the best solution for your house after inspecting it. Car Tape, Extra Long and Wide! Availability: United States R-value: 6.5 (1.5") Rigid ductwork is an important component of any living space because it helps to encourage good air quality. Thanks for reading. Polyamides (PA) HEPA/ULPA As screen size gets smaller, your logo will scale down to continue accommodating four logos across. The fiberglass air ducts must be properly sealed. After 15 years in various sales and technical positions related to the mechanical insulation industry, I founded Insulpedia.com. The BIP Newsletter is emailed once a month. Appliance Innovation Question:Is round or square duct better?Answer:Round ducts can be considered better than square ducts in terms of efficiency. Duct Board Generally, no issues appear till this time. Document Library Air Filtration Home Insulation duct ductwork sealing insulation foam air services repair attic solutions ducts spray efficiency sealed central much encapsulation energy step cooling Question:How often should ductwork be replaced?Answer:10-15 years is the average lifespan of the ductwork in your home. ThermoClad All-Weather Rooftop Ventilation Insulation Protection, manufacturers of fiberglass duct board insulation, QuietR Duct Board Installation Instructions, NAIMA Fibrous Glass Duct Construction Standards, NAIMA Fibrous Glass Residential Duct Construction Standards, North American Insulation Manufacturers Association, Insulation: The Red Headed Stepchild of Mechanical Specifications, A Peek Inside The Insulators Wall of Fame, Dimensions of 4 x 8, 4 x 10, and 8 x 10. HVAC Moreover, you will be saving 32% of the metal used in a square duct. Caulk Over Grout in Shower: Best Option or One of the Options? LVT Flooring Selecting the best material for your HVAC unit is quite crucial. JM diffuser board is available plain or with a tough fire-resistant FSK facing laminated to the exterior surface. Extruded Polystyrene (XPS) Billet Recycle Content: 13% Submittal Wizard Polyolefins (PP, PE) Design Professional Services After reading an article, the visitor will see your ad covering almost 100% across the width of the screen. Johns Manville Micro-AireLP duct board is designed for use in manufactured and modular housing duct systems. Requirements: The ad content for this section is flexible. If youre planning to do the installation on your own, please start with the proper gears. Disclaimer: This content is purely news and information based. While you cant see it, this system provides your living space with fresh air and works to filter out dangerous particles floating in it. To figure out the better one for you, this guide has provided a detailed comparison. Sheet metal is quite durable and the most ideal choice for longevity. Self, Rigid Fiberglass Insulation Boards are used as thermal insulation for heating ducts and equipment.&n, Owens Corning 703Fiberglass Acoustical Board is an unfaced (plain) fiberglass rigid board that, Owens Corning 703 FRK Fiberglass Acoustical Board is a 3# density fiberglass board with aFRK f, Rigid Mineral Wool Insulation provides superior thermal, acoustical and personnel protection perform, BOSS 180 Multi-Seal is a one component, moisture curing adhesive formulated with USP Technology for, VentureClad 1577CW is a zero permeability, absolute vapor barrier for duct insulation cladding and j, FlexClad-250 is a self-adhering, sheet-type protective aluminum waterproofing membrane. Air Pollution Control, Reinforcement Fiberglass 3M Basic Duct Tape, 1055-3PK, 1.88 inch by 55 yards, 3 rolls, MG888 Multi-Purpose Duct Tape 1.88 Inches x 60 Yards, Crafts, Repairs & DIY Projects, 1 Roll (White), Metallic Tape Mirror Tape Duct Tape DIY Decorative Tapes, 2.4 Inches x 55 Yards (Silver), EconoHome Heat Reflecting Insulation Roll - 3mm Foam Insulation Core, Double-Sided Aluminum Heat Shield Sheet - Light Reflective Insulation Thermal Material for Weatherproofing, Condensation, Sound, FREE Shipping on orders over $25 shipped by Amazon, 3M Aluminum Foil Tape 3340, 2.5" x 50 yd, 4.0 mil, Silver, HVAC, Sealing and Patching Hot and Cold Air Ducts, Fiberglass Duct Board, Insulation, Metal Repair, SOOMJ Noise Insulation Sound Proof Foam Panel for Roof Wall HVAC Duct Pipe - 6mm/236mil 15.7 X 39 Inches (6mm Aluminum Foil), 2X Duct Board Take Off Start Collar 6" for HVAC Duct Work Qty 2, 2X Duct Board Take Off Start Collar 10" for HVAC Duct Work Qty 2, Amcraft 1" R4 Insulation Red Duct Tool (1", Red), Sheet Metal Ductboard Take Off Start Collar 10" for HVAC Duct Work, Toe Ductor Base Board Vent Under Cabinet Toe Kick Ducting Kit, Crescent Wiss 7-1/2" Cable Tie Tensioning Tool - WT1 , Grey, 18" Collar Sheet Metal Ductboard Take off Start COLLAR HVAC, USTAR Dash Board AC Heater Air Vent Duct Compatible with Ford F150 2009-2014 Ford Lobo 2009-2014 Replaces 9L3Z19893CA Chrome Silver and 4Pc Pack, 12" X 12" Baseboard Return Air Grille - HVAC Vent Duct Cover - 7/8" Margin Turnback for Flush Fit with Baseboard Work - White [Outer Dimensions: 13.75" Width X 13.75" Height], Rennsteig Wiring Duct Cutter for Plastic Panels, Baseboards and Cable Ducts - Up to 4 1/2-inch Depth (without Support), YUBX Wild Animals Washi Tape Set 12 Rolls Gold Foil Print Decorative Masking Tapes for Arts, DIY Crafts, Journals, Planners, Scrapbook, Wrapping (African Migration), Craftzilla Colored Masking Tape 6 Roll Multi Pack 180 Feet x 1 Inch of Colorful Craft Tape Vibrant Rainbow Colored Painters Tape Great for Arts & Crafts, Labeling and Color-Coding, Estwing 5.5-Inch Fixed Blade Double-Edged Duct Knife, US Energy Products 24" x 25' Double Bubble Reflective Foil Insulation Thermal Barrier R8, Kuego Floor Vent Covers Floor Register Cover Magnetic Rectangle Air Vent Screen Cover Screen for Home Air Vent Filters for Home Wall Ceiling Floor Catch Debris Hair (6 Pieces,7.5 x 12 Inch), 3M Fire Barrier Duct Wrap 615+ - for Ventilation Ducts and Commercial Kitchen Grease Ducts - 24 inch x 25 feet, 1 roll, Sheet Metal Ductboard Take off Start COLLAR 6" for HVAC Duct Work, Craftzilla Colored Masking Tape 7 Roll Multi Pack 210 Feet x 1 Inch of Colorful Craft Tape Vibrant Rainbow Colored Painters Tape Great for Arts & Crafts, Labeling and Color-Coding, Klein Tools 89554 HVAC Tool, Wire Cutters and Fiberglass, Fiber Board and Flexible Duct Cutters in One, Sheet Metal Ductboard Take off Start COLLAR 8" for HVAC Duct Work, Imperial 14" x 6" Painted Metal Baseboard Grille, White, RG0033 (Three Pack), US Energy NASATECH (Pre-Cut for 16 Panel) 2 Car Garage Door Reflective Insulation Kit (R8) 1/4 thick w/ New And Improved Super Heavy Duty Double Sided Foam Tape Fits 16x7 16x8 18x7 18x8 Garage Doors, Gardner Bender DS-530 Duct Seal, 5 lb. NRC: 0.9 (R6.5) Shipped with E3 Pallet Technology, Insulation Does The Toilet Flange Need to Be Bolted? Engineering Portal, Industrial Sheet metal, however, can be insulated from inside or outside of the duct. Metal Jacketing Flexible Duct Insulation OEM Insulation Because a wrong decision might require you to remove the whole unit. Duct Board Plenum Kit - R4.2, Johns Manville Duct Insulation, 2" x 24" x 48", Sponsored | Based on star rating and number of customer ratings, Tjernlund LB2 Dryer Duct Booster with Status Panel UL-705 Listed DEDPV, Blue Summit Supplies 6 Pack Duct Tape Multi Pack, Tear by Hand Design, Silver, Strong 7mil Thickness, Commercial Grade Strength, 30 Yard Length, 180 Total Yards Value Pack.