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Radiant Floor - Wood Joists
Up to R-17 and a Radiant Reflector (Maximum Benefit Application)  This application is ideal for the Do-It-Yourselfer who has a Radiant Floor System, above or below, a wooden (joist) sub-floor. The benefits provided by Reflectix® are dramatic. In addition to an impressive R-17, the foil provides a 96% reflectivity of radiant energy back into the system. The product has the added attraction of ease of handling and installation.Recommended Products:
Double Reflective Insulation
• BP48025 (48” x 25’) • ST16025 (16” x 25’) Benefits: • Up to R-17 • Reflects 96% radiant energy back up into sub-floor • Reduces annual energy costs of the system • Installs quickly and easily • Product is dust and fiber-free • Does not require any protective garments or respirators • No nesting characteristics for insects or rodents Testing and Certification: Reflectix® products are thoroughly
tested at either nationally approved independent laboratories or
leading universities. Tests are performed to current American Society
of Testing and Materials (ASTM) standards when a standard exists. For a
copy of an actual test report, please e-mail us at
customerservice@reflectixinc.com or call at 800-879-3645. Air Space Requirements: There are 4 Methods of Installation (with varying levels of benefit) Download DIY Radiant Floor - Wood Joists Installation Instructions.pdf Note: For all methods, inspect the structural integrity of the sub-floor and make any needed repairs before installing Reflectix®. • Begin at one end of a joist cavity (that contains the Radiant Floor System) and install the product “end” with staples to the sub-floor or band board. Proceed down the joists by stapling each edge (or middle of the Reflective/Bubble/Bubble/Reflective 48” wide product) to the face of each joist. Staple at intervals of approximately 3” to 4”. Enclose the entire joist run(s). • Repeat for each joist that contains the Radiant Floor System. • It is possible to install the Reflectix® inside the joist cavity (utilizing the Reflective/Bubble/Bubble/Reflective, Staple Tab product).
• Start at one end of the house. Tuck the Reflectix® into the joist cavity. • Each edge of the product has a 3/4” staple tab. Determine the depth inside the cavity that the product is to be installed and attach the product with staples (through the tab) at approximately 3” to 4” intervals. Repeat on opposite joist. • The less air space between the product and the sub-floor, the lower the R-Value (although reflectivity will be maintained). • 0.5” air space = R-2.7 • 0.75” air space = R-3.8 • 1.5” air space = R-7.3 • 3.5” air space = R-12 • It is possible to install the Reflectix® inside the joist cavity above a Mass Insulation Batt. • Utilize Reflective/Bubble/Bubble/Reflective, Staple Tab product Method specified in #2. • Refer to R-values in Method #2 to determine benefit gain in your system. • Reflectix® can be installed below the Mass Insulation Batt. • Refer to Method #2 for installation procedure, air space options and resulting R-Values. • Finish with an interior panel below the Reflectix® (typical when finishing a basement). Important: Additional Resources: There are a wide variety of terms and words associated with the Reflectix® family of products. Those in common usage are itemized below in two categories - Products & Applications. Products: Reflective Insulation, Radiant Barrier, Cathedral Ceiling Insulation, Crawl Space Insulation, Concrete Slab Insulation, Duct Insulation Indoors, Duct Insulation Outdoors, Duct Insulation Spacers, Expansion Joint, Knee Wall Insulation, Pipe Wrap Insulation, Radiant Floor Insulation, Return Air Duct Panning, Wall Insulation, Water Heater Insulation, Metal Building Insulation, Post and Frame Building Insulation, Foil Tape, Metalized Tape, White Poly Tape, Sill Sealer, Foil Insulation, Foil Radiant Barrier, Bubble Pack Insulation, Bubble Insulation, HVAC Insulation, Easy to Install Insulation, No Itch Insulation, Energy Saving Products, Energy Efficient Products. Also, Products/Terms within our industry include: Low-e Coatings, Radiant Barrier Paint, Radiation Control Coatings, Radiant Barrier Plywood, Radiant Barrier Decking, Radiant Barrier Chips, Radiant Barrier Tax Credit. Applications: Attic, Behind Hot Water Radiator, Cathedral Ceiling, Concrete Slab, Crawl Space, Duct Indoors, Duct Outdoors, Expansion Joint, Garage Door, House Wrap, Knee Wall, Pipe Wrap, Radiant Floor, Snow Melt, Sill Sealer, Storage Buildings, Exterior Wall, Masonry Wall, Water Heater, Wine Room, Work Shop, Agricultural Building, Commercial Building, Return Air Panning, Metal Building Roof, Metal Building Wall, Post and Frame Building Roof, Post and Frame Building Wall. |
Reflectix, Inc. #1 School Street, P.O. Box 108, Markleville, IN 46056
Phone: (765) 533-4332 | (800) 879-3645 | Fax: (765) 533-2327 | Email: customerservice@reflectixinc.com
All Photos, Renderings, Illustrations and Literature are the Property of Reflectix, Inc.