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Foil Fiberglass Vinyl 4 ft x 125 ft (500 sq ft)

$ 344.95 $ 444.95 You save 22.470%
Foil Fiberglass Vinyl 4 ft x 125 ft (500 sq ft) Search Product



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3 OR MORE ROLLS

The more you order, the lower the price per roll


Also available 6 ft. x 125 ft. (750 sq. ft.) roll.


R-value 10.70


1/4-inch fiberglass core bonded to one layer of reflective foil and one layer of durable white scrim-reinforced facing material. 


Ideal for commercial and residential applications where white facing in preferred. No itchy fibers - Fiberglass core is encapsulated. White vinyl is reinforced.

Ship dimensions: L: 52" W: 12" H: 12" Lbs:38




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Foil Fiberglass Vinyl 4 ft x 125 ft (500 sq ft) Search Product



Foil Fiberglass Vinyl Insulation – Product Details


Premium Reflective Insulation with Fiberglass Core

This Foil Fiberglass Vinyl insulation roll combines the power of reflective technology with the proven thermal stability of fiberglass. Designed for both commercial and residential use, it effectively combats radiant heat, conductive heat transfer, and moisture challenges in demanding environments.


Structure and Composition

The product consists of a central fiberglass insulation core laminated on one side with a reflective aluminum foil and on the other side with a durable white vinyl facing. This multi-layer construction allows it to serve dual purposes—thermal insulation and surface protection.


Material Breakdown

  • Aluminum Foil Face: Reflects up to 95% of radiant heat.

  • Fiberglass Core: Provides bulk insulation with high thermal resistance.

  • White Vinyl Backing: Adds strength, puncture resistance, and clean visual finish for exposed applications.

Performance Highlights

Foil Fiberglass Vinyl insulation delivers exceptional performance in settings where both thermal control and surface durability are required. It resists damage from compression, maintains a strong R-value over time, and adds reflectivity to improve HVAC efficiency.


Key Performance Metrics

  • Size: 4 ft wide x 125 ft long (500 sq ft per roll)

  • Excellent Radiant Heat Barrier: Reflective foil enhances overall insulation effectiveness.

  • Consistent Thermal Resistance: Fiberglass maintains R-value in extreme temperature variations.

  • Durable Finish: Vinyl layer provides protection during and after installation.


Installation Advantages

Foil Fiberglass Vinyl insulation is engineered for easy handling and installation, even in large-scale applications. Its flexible design makes it compatible with a wide range of structures and systems. For more on installation, see Detailed Installation Instructions


Installation Benefits

  • Resists Tearing and Sagging: Maintains shape and structure over time.

  • Clean Interior Appearance: Vinyl surface gives a finished look, reducing the need for additional covering.

Technical Information


Foil Fiberglass Vinyl Insulation
 FLANGE TABS 2-1/2"
TECHNICAL DATA
Physical PropertiesTest MethodValues
Flame SpreadASTM E8425 or less
Smoke DevelopedASTM E8450
Full Scale Burn TestUL 1715/UBC 26-3 PASS
Thermal Performance - R ValueASTM C1363/C1224Heat Flow Down R 10.70
Heat Flow Up R 8.56
Heat Flow Horizontal R 9.45
The Foil Fiberglass Vinyl Reflective insulation consist of a .25 inch fiber glass insulation bonded on one side with a Polypropylene Scrim vapor retarder and a 99% high polished aluminum foil on the other side. The product is tested in accordance with ASTM E 96 (Desiccant Method), “ Standard Test Method for Water Vapor Transmissions of Materials” System R Values have been tested in accordance with ASTM C 1363/ C1224 Air to Air, and achieve a Downward R value of R10.70. Upward R value of R 8.56 and a horizontal R value of R 9.45 with a 30 degree temperature difference. The composite product shall have a fire hazard classification of 25 or less (flame spread index) and 50 (smoke develop) index ( FHC 25/50) when tested in accordance with ASTM E 84. Testing is conducted with the use of additional support to benefit the test samples. The product was also tested and passed the UL 1715 / UBC 26-3 ( Full Scale Room Burn Test)


Applications

Versatile Use Across Building Types


Foil Fiberglass Vinyl insulation is ideal for a wide range of commercial, industrial, agricultural, and residential construction projects. Its reflective and insulative properties make it especially valuable in structures where both thermal efficiency and durable finish are required.


Metal Buildings and Pole Barns

This product is a top-performing solution for insulating metal roofs and walls in pre-engineered buildings. It addresses the two major concerns in metal structures—radiant heat gain and condensation.


Benefits in Metal Structures

  • Reduces heat buildup in hot climates

  • Helps prevent sweating and moisture drip

  • Creates a more stable indoor temperature year-round

Agricultural and Livestock Facilities

In barns, poultry houses, and equipment storage buildings, the vinyl-facing provides a cleanabledurable surface that can withstand tough agricultural conditions.


Benefits in Agricultural Use

  • Withstands exposure to humidity and cleaning agents

  • Helps protect livestock from temperature extremes

  • Improves lighting by reflecting interior light

Warehouses and Commercial Interiors

In commercial buildings, this insulation provides energy savings while also enhancing interior aesthetics. The white vinyl finish delivers a polished appearance when left exposed.


Common Commercial Applications

  • Warehouse walls and ceilings

  • Loading dock covers

  • Retail backrooms or service corridors

  • Exposed insulation in utility areas

Duct and HVAC System Wrap

The fiberglass core and foil facing make this product ideal for wrapping ducts and mechanical equipment. It helps maintain temperature in air systems and reduces HVAC energy loss.


HVAC-Related Applications

  • Ductwork insulation in unconditioned spaces

  • Mechanical room enclosures

  • Pipe and conduit insulation

Residential Use

While more commonly seen in commercial settings, Foil Fiberglass Vinyl insulation is also suitable for residential garages, workshops, and crawl spaces, particularly where a clean appearance is desired without extra finishing.


Residential Benefits

  • Keeps garages cooler in summer and warmer in winter

  • Adds a polished finish to home workshops

  • Reduces energy loss in crawlspaces and basements

Product Benefits


Dual Thermal Protection: Reflective + Bulk Insulation

One of the standout advantages of this product is its hybrid insulation structure. The aluminum foil reflects radiant heat, while the fiberglass core reduces conductive heat flow—delivering powerful thermal performance in a variety of conditions.


Key Thermal Advantages

  • Reflects up to 95% of radiant heat: Prevents heat penetration in summer and retains warmth in winter.

  • Stable R-Value: Fiberglass maintains insulating power even in extreme hot or cold conditions.

  • Improves HVAC Efficiency: Reduces the load on heating and cooling systems.

Vapor and Moisture Control

Moisture management is essential for structural longevity and comfort. This insulation helps prevent condensation, protecting building materials and reducing mold risk.


Moisture-Resistant Benefits

  • Vinyl Facing Resists Condensation: Especially useful in metal buildings and high-humidity environments.

  • Barrier to Humidity and Airflow: Helps maintain consistent indoor conditions and lowers energy costs.

Clean and Durable Surface Finish

With its white vinyl facing, this insulation offers more than thermal protection—it contributes to a clean, finished look. This makes it perfect for exposed installations where both performance and appearance matter.


Aesthetic and Structural Advantages

  • Professional Appearance: Bright white surface improves lighting and aesthetics.

  • Puncture-Resistant Surface: Withstands construction wear and long-term exposure.

  • Washable Finish: Easy to clean in dusty or agricultural environments.

Long-Term Performance and Reliability

Engineered to hold up under harsh conditions, this insulation maintains its shape, R-value, and physical integrity over time. It won’t sag, compress, or deteriorate with age.


Reliability Benefits

  • Minimizes Air Gaps and Voids: Maintains consistent insulation performance.

  • Won’t Degrade or Settle: Ideal for installations where long-term value is a priority.

  • Fire-Resistant Core: Fiberglass naturally resists flames, enhancing safety.

Installation Efficiency

Designed with installers in mind, this roll is both flexible and tough. It can be quickly cut, shaped, and mounted in tight or awkward spaces without tearing or damage.


Installer-Friendly Benefits

  • Lightweight and Maneuverable: Reduces fatigue and speeds up project timelines.

  • 500 sq ft Coverage Per Roll: Fewer seams mean faster installation and reduced air leakage.

  • Versatile Application: Compatible with walls, ceilings, ducts, and more.

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