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Insul-Quilts RBGB Aluminum Foil Radiant Barrier Insulation Roll, 48.5 in. Wide, Class A Fire Rated
Regular price $99.20Orders start at $399 — combine any items to reach the minimum. Learn more
Insul-Quilts RBGB Aluminum Foil Radiant Barrier Insulation Roll, 48.5 in. Wide, Class A Fire Rated
The Insul-Quilts RBGB is a flexible radiant heat barrier made of quality aluminum laminated onto high grade liner paper, manufactured in 48.5 in. widths for attic and gable installations. It reflects 97% of radiant heat to cut summer heat gain and winter heat loss. Each order unit is one roll of RBGB radiant barrier.
Key Features:
- 97% Reflectivity: Reflects 97% of radiant heat, helping keep cooling costs down and reducing attic temperature extremes.
- Class A Fire Rated: Class A Flame/Smoke rated per ASTM E84-18b, the highest fire-resistance rating a material can receive.
- California Certified: Certified and registered with the California Bureau of Household Goods and Thermal Insulation.
- Attic-Friendly Width: Made in 48.5 in. widths sized to fit attic spaces and gables, installed vertically or horizontally.
- New Build or Retrofit: Suitable for both new construction and retrofit applications in attics, gables, and commercial or industrial buildings.
- Roof-Life Protection: Reduces attic temperature extremes, which can help extend the roof's lifespan.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Insul-Quilts |
| Manufacturer model | RBGB |
| Sell unit | 1 roll of RBGB radiant barrier, 48.5 in. wide |
| Material | Aluminum foil laminated onto high grade liner paper |
| Nominal size | 48.5 in. wide roll |
| Width | 48.5 in. |
| Thermal reflectivity | 97% of radiant heat |
| Fire rating | Class A Flame/Smoke per ASTM E84-18b |
| Certification | California Certified, registered with the Bureau of Household Goods and Thermal Insulation |
| Assembly | Roll form, installs vertically or horizontally |
| Intended use | Radiant barrier for attics, gables, residential, commercial and industrial buildings |
Coverage & How Much You Need:
One roll is 48.5 in. wide; roll length is not stated in the available sources, so total square footage per roll cannot be calculated. Measure your attic or gable area and plan for vertical or horizontal runs between framing.
Fit and Compatibility:
RBGB is part of Insul-Quilts' radiant barrier line alongside RBF, RBF-R (with flanged sides for 16 in. and 24 in. framing) and RB FSK products. Insulation fasteners or framing staples are sold separately; installation hardware is not included.
Frequently Asked Questions (FAQ):
Q: What is included with this product?
A: One roll of Insul-Quilts RBGB aluminum foil radiant barrier in 48.5 in. width. Fasteners and installation tools are sold separately.
Q: How wide is the roll and can it be cut?
A: The roll is 48.5 in. wide, sized to fit attic spaces and gables, and can be installed either vertically or horizontally.
Q: Is it fire safe for indoor use?
A: Yes, RBGB is Class A Flame/Smoke rated per ASTM E84-18b, the highest rating available, and is considered suitable for sensitive spaces such as hospitals and schools.
Q: How much heat does it block?
A: It reflects 97% of radiant heat, reducing summer heat gain, winter heat loss, and attic temperature extremes.
Q: Is it certified?
A: RBGB is California certified and registered with the Bureau of Household Goods and Thermal Insulation.
Q: Can I use it in new construction?
A: Yes, it is designed for both new construction and retrofit applications in attics, gables, and residential or commercial buildings.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
RBGB's 48.5 in. width is made for attics and gables, where it can be run across or between rafters to create the air gap a radiant barrier needs to work. In hot climates it is most effective placed to face the open attic air space, cutting cooling loads. For 16 in. or 24 in. on-center framing, Insul-Quilts' flanged RBF-R may be faster to install; for tighter spaces, narrower RBF widths (17 in. or 25.5 in.) are easier to handle.
Work carefully on ladders or in hot attic spaces, keep the foil clear of electrical connections and light fixtures, and follow the manufacturer's installation instructions and local building codes.
Order the Insul-Quilts RBGB radiant barrier roll today to cut attic heat and lower cooling costs.
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