HVAC/R & Plumbing Contractor
R-8.0 Duct Insulation - Outdoor
Click here for Submittal Sheet for Duct R-8.0 Outdoor (N23 Revised 1012).pdf

R-8.0

Reflectix® Outdoor Duct Insulation may be installed by wrapping rectangular or round ductwork in HVAC applications. The product costs less to install due to its lightweight, easy to cut and handle installation characteristics. Reflectix® is extensively tested by either nationally independent laboratories or at leading universities. Please refer to the Submittal Sheet pdf above for detailed testing results and product specifications.

Recommended Products:

Double Reflective Insulation
Reflective/Bubble/Bubble/
Reflective - Roll
• CDW48050 (48" x 50')

Benefits:
• R-8.0
• Easy to handle and cost less to install
• Non-toxic / non-carcinogenic
• Lightweight and clean
• Not affected by moisture / humidity
• Resists growth of fungi, mold and mildew
• No need for protective garments or respirators when installing
• When sealed properly, aids in reducing duct leakage

Federal Trade Commission Fact Sheet: 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. To obtain a copy of our Product Testing Specifications, please refer to our website “Literature Tab” above. The documents are also available by e-mail at customerservice@reflectixinc.com or call 800-879-3645.

Installation Instructions:
Note: Installation instructions and illustrated drawings are recommendations only, while proper local construction methods are the responsibility of the installer.

HV Spacers Affixed to Corners Method (Rectangular Ducts Only)
Spacer: HVSPACER (Reflectix® Hard Plastic Corner Spacer)
• Refer to the diagrams above.
• Make sure all sheet metal joints, seams and penetrations are sealed.
• Make sure the duct is free from dust and dirt by wiping it down with a shop rag.
• Install the HV Spacers to all 4 corners of the duct.
• Place the spacers every 24”.
• Verify the circumference of the duct over the top of the spacers.
• Cut the Reflectix® to this length plus 1”.
• Wrap the product over the spacers.
• Fasten the Reflectix® by either taping the seam with Acrylic Adhesive Foil Tape, or plier stapling the two edges together (goal is an air-tight, snug seam seal).
• Repeat the following steps over the outside of the first layer of insulation.
• Install the HV Spacers to all 4 corners (of the duct) on the product directly above the already affixed HV Spacers.
• Verify the circumference of the duct over the top of the spacers.
• Cut the insulation to this length plus 1”.
• Wrap the product over the spacers. Note: The heavier “reflective layer” side of the product should face the environmental elements.
• Fasten the Reflectix® by either taping the seam with Acrylic Adhesive Foil Tape, or plier stapling the two edges together (goal is an air-tight, snug seam seal).
• If the duct is supported with saddle clamps, make sure to install a spacer on the two bottom edges of the duct directly between the clamp and the duct.
• If the clamps are installed around the duct (such as plumbers tape), make sure that the seam is taped to prevent air movement.

Please Note Regarding Hangers:
Strap Hanger: Wrap Reflectix® with the seam at the hanger. Tape seam tightly around hanger.
Saddle Hanger: Make sure that there is a spacer below the hanger, between the insulation and the duct, to prevent the insulation from touching the duct.

Important:

Additional Resources:
Zip Code Zone Locator
This function provides regional installation recommendations for the following applications: Attic & Cathedral Ceiling
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DIY Product Calculator Type:
Roof/Attic Application: Radiant Barrier Locate a Retailer
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*Note: This calculator is for the convenience of our customers. These recommendations are for approximate product quantity.

Video Library:

For additional videos, click here.
  • Attic
  • Crawl Space R-21
  • Crawl Space R-16
  • HVAC Ducts - DIY Installer
  • A Products Introduction