Post Frame Building – Roof – Retrofit – Bottom of Truss

Single Reflective Insulation

Reflective/Bubble/Bubble/White – Roll

• RDBW48100 (48” x 100’)

• Easy to handle and install
• Convenient roll sizes
• Class A / Class 1 Fire Rating
• Inhibits dew point condensation
• Vapor retarder (0.02 perms)
• Does not compress, collapse or disintegrate
• Non-toxic / non-carcinogenic

Installation Instruction pdf: PFB1 Roof Retro – Btm of Truss Revised 012021

• The Reflectix® Insulation is installed with the “white side” towards the interior of the building.
• Pre-installation inspection – Check the roof area for clutter, water sprinklers, conduit and lights. Sprinkler systems are especially important. All water pipes must be below the Reflectix® Reflective/Bubble/Bubble/White Insulation to prevent the possibility of freezing in the winter.
• Nail 1”x 2” furring strips on the bottom of and perpendicular to the trusses on 22” centers. (Note: When truss spacing is 24” it is recommended to install the Reflectix® Reflective/Bubble/Bubble/White 48” product directly to the bottom cord of the truss.)
• Butt the furring strips together and tape. Staple tape for reinforcement.
• Staple the edges of the Reflectix® to the furring strip with 5/16″ staples at approximately 4″ intervals. Run subsequent courses of the product with a 3/4” overlap at the seams.
• Tape the seams with a Reflectix® White Poly Tape (goal is an air-tight, snug seam seal).
• Tape any butt seams with Reflectix® White Poly Tape, insure taped seam has a good full continuous bond.
• Staple product down the middle of the sheet into the furring strip above.

* Includes thermal resistance of 0.61 UP and 0.92 DOWN for interior air film.

Calculation Disclaimer: All values are calculated based on the “ASHRAE Handbook of Fundamentals” heat flow up and down.

Review These Important Safety Guidelines Prior to Installation:

• ALWAYS check local building codes before installing Reflectix®.
• ALWAYS check the area you are insulating and make any needed repairs. Any worn wiring should be replaced before you begin installing Reflectix®.
• ALWAYS make sure work areas are well ventilated and well lighted.
• ALWAYS use eye protection when operating a staple gun.
• ALWAYS use caution and common sense when using a staple gun. Be aware of electrical wiring locations. Stapling into a wire can cause severe shock or death. NEVER staple into electrical wiring.
• ALWAYS be careful when working with large pieces of Reflectix® on windy days.
• When installing Reflectix® on bright sunny days, it is best to wear sun glasses.
• Do not work in areas such as attics when temperatures are too hot.
• Please Note: The intention of these Installation Instructions and 3-D renderings are for the sole purpose of illustrating the correct location and relative position of the Reflectix® products in specific building assemblies. The correct construction methods and techniques are the responsibility of the installer or contractor. The methods outlined are recommendations on location of the Reflectix® products as a guideline. There are no claims on the part of Reflectix, Inc. that these building assemblies are finite standards or meet building code requirements (as they can vary by region).

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 the “Additional Resources” tab. The documents are also available by e-mail at customerservice@reflectixinc.com or call (800) 879-3645.

Post Frame Air Space Requirements Rev 0615

Reflectix Literature / Product Testing Specifications

F2 – Solutions for the Pro Revised 012024

N36WPT – White Poly Tape Instruction Sheet Revised 102022

Pictured: 1. Single Reflective Insulation