HVAC/R & Plumbing Contractor
Attic
Click here for Submittal Sheet for Attic (N29 Revised 1114).pdf

Radiant Barrier


Reflectix® products are an excellent, energy-efficient choice for upgrading your attic system. When installed properly, a reduction of up to 10% in the home’s air conditioning usage can result. The products are clean, lightweight and easy to install. Additionally, attic-mounted HVAC ducts benefit from the reduction of attic surface temperatures.
Note:Attic Radiant Barriers provide benefit on hot sunny days. For this reason, they are recommended for installation in the Southern Zone of the USA (due to the amount of AC usage). However, they will provide reduced heat gain into the home wherever they are installed. If you need to verify your location, use our Zip Code Zone Locator below or call 800-879-3645.

Recommended Products:
Double Reflective Insulation
Staple Tab, Reflective/Bubble/Bubble/Reflective - Roll
• HVST16050 (16” x 50’)
• HVST24050 (24” x 50’)
• HVST48050 (48” x 50’)
• HVST16100 (16” x 100’)
• HVST24100 (24” x 100’)
• HVST48100 (48” x 100’)
• HVST16125 (16” x 125’)
• HVST24125 (24” x 125’)
• HVST48125 (48” x 125’)
Radiant Barrier
Radiant Barrier, Reflective/Woven Fabric/Reflective - Roll (Heavy Duty)
• RB4812550 (48” x 125’)

Benefits:
• Radiant barrier
• Blocks 94%+ of radiant heat
• Easy to install
• Does not require any protective garments or respirators
• Convenient roll sizes
• Does not promote growth of mold or mildew
• Not affected by moisture or humidity

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.

Reflective/Woven Fabric Radiant Barrier
Installation Instructions: (There are 2 options)

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

1. Underside of Rafter Method (depicted in illustration above)

• Check the attic area and make any needed repairs before installing Reflectix®.
• Unroll the Reflectix® as you work and cut it to suitable lengths (8’ to 12’) with scissors or utility knife.
• If a helper is available, rolling out longer lengths of product with one person stapling and the other holding the end of the product makes for a quicker installation.
• Allow for proper ventilation. See note below on ventilation.
• Install product perpendicular to the rafters with a 2” overlap on the seams (no taping required). Staple the product to the rafters at 2” to 3” intervals.
• Leave a 2” to 3” gap on each side of the roof peak and a gap at the lower edge of the roof line (within 18” OK).
• Staple to the face of the studs on gables and insure at least a 1” gap around all vents.

2. Staple to the Deck Method - Southern Zone of the USA Only
For the Regional Recommendation for the Staple to the Deck Method, please verify the location of your home with the “Zip Code Zone Locator” function below.


• Cut the entire roll of product into 16” or 24” lengths with a miter saw (depending on rafter spacing).
• Begin at the top of the cavity. Run product flush to the decking, parallel to the rafter.
• Staple sheet directly to the deck (Nails poking through sheet from above will not interfere with performance).
• Do not block any venting (cut around).
• No need to cover rafters (no loop around).


Reflective/Bubble Insulation
Installation Instructions: (There are 3 options)


1. Underside of Rafter Method (depicted in illustration above)

• Check the attic area and make any needed repairs before installing Reflectix®.
• Unroll the Reflectix® as you work and cut it to suitable lengths (8’ to 12’) with scissors or utility knife.
• If a helper is available, rolling out longer lengths of product with one person stapling and the other holding the end of the product makes for a quicker installation.
• Allow for proper ventilation. See note below on ventilation.
• Install product perpendicular to the rafters with a 2” overlap on the seams (no taping required). Staple the product to the rafters at 2” to 3” intervals.
• Leave a 2” to 3” gap on each side of the roof peak and a gap at the lower edge of the roof line (within 18” OK).
• Staple to the face of the studs on gables and insure at least a 1” gap around all vents.

2. Staple to the Deck Method - Southern Zone of the USA Only
For the Regional Recommendation for the Staple to the Deck Method, please verify the location of your home with the “Zip Code Zone Locator” function below.


• It is easiest to install either 16” or 24” wide product (depending on rafter spacing).
• Begin at the top of the cavity. Run product flush to the decking, parallel to the rafter.
• Staple sheet directly to the deck (Nails poking through sheet from above will not interfere with performance).
• Do not block any venting (cut around).
• No need to cover rafters (no loop around).

3. Truss Cavity or Side of Rafter Method
• Utilize either 16” or 24” Reflective/Bubble product (depending on truss/rafter spacing).
• Product will be installed parallel to the truss/rafter direction.
• Begin at the top of the cavity.
• Staple the product (either Staple Tab (ST Reflective/Bubble) or the edge of the BP Reflective/Bubble product) to the side of the top chord of the truss (the structural 2”x 4” (or 2”x 6”) that is attached to the roof decking) or the side of the rafter.
• Continue down length of truss/rafter stapling at 2” to 3” intervals - Repeat on opposite truss/rafter.
• Allow for proper ventilation. See note below on ventilation.
• A minimum of a 1/4” continuous air gap should be present between the product and the roof decking - Do not staple the product directly to the deck - This product is not perforated and could potentially condensate.
• Do not block any venting (cut around).

Ventilation:
Good ventilation in the attic increases the home's comfort level and helps the materials of the house last longer. Be sure not to block any ventilation paths when the Reflectix® is installed.

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.

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