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Double P1 Double Bubble Foil White

Radiant Barrier USA
Typeresidentialcommercial
Leaflet
Applications
CrawlspaceBasementMetal BuildingBarndominiumWooden StructureCarport
Leaflet
Applications
CrawlspaceBasementMetal BuildingBarndominiumWooden StructureCarport

Features

  • 7-layer bubble insulation structure for enhanced strength and performance
  • Solid foil, white poly, or white woven facing options
  • Low-emittance foil surface (E=5%)
  • Reflects up to 95% of radiant heat
  • Unique LDPE plastic blend for long service life
  • Stiffer than most bubble insulation, making it easier to install
  • Suitable for all building insulation applications
  • Ideal for retrofits and home improvement projects
  • Excellent insulation for metal buildings and carports
  • Reduces heat bridging in metal structures
  • Will not delaminate, ensuring long-term durability and stability
  • Compatible with hybrid installations using foam or fiberglass
  • Ideal for metal buildings where a white facing is desired
  • Provides excellent R-values when installed with airspace

Variants

NameSKURoll SizeWidthLengthWeight
300 ft² WovenDB-2X4mmWB-300-Woven300 sq ft48"75'33 lbs
500 ft²DB-2X4mmWB-FW500 sq ft48"125'42 lbs
625 ft²N/A5' x 125' 5'125'40 lbs

Specifications

SpecificationValue
Standard Roll Sizes48"x75' / 48"x125'
Effective Coverage300/500 ft²
Thickness (inches) +/-5%0.32" nominal
Standard Roll Weight (lbs) +/-5%33 lb / 42 lb
Emittance (Metalized Foil Side)E=5% (95% Reflective)
Water Vapor Transmission ASTM E-960.02 perms
Mold and MildewNo Growth
Flame Spread, Smoke Development, and Fire RatingClass A / Class 1

Thermal Performance

AssemblyHeat-Flow DirectionTypical R-Value
Attic - VentedHeat flow downCall for R-Value
Metal BuildingsHeat flow downR-5.1 to R-18.3
Metal BuildingsWallR-2.8 to R-6.8
Post Frame BuildingsHeat flow downR-4.2 to R-17.1
Post Frame BuildingsWallR-2.8 to R-6.8
Radiant FloorsHeat flow downR-5.1 to R-18.3
Wall - Basement MasonryWallR-2.8 to R-6.8
  • R-values represent estimated and potential heat resistance for our insulation in the proposed application.
  • Actual performance depends on air film size, temperature, surface condition, and airflow direction (up, down, or horizontal).
  • Calculations are based on RIMA, AIRAH, ASHRAE, and ISO 6946 standards, following ASTM procedures for air film resistance.
  • When two air spaces are used, values assume still air conditions in both spaces.
  • For a full R-value assessment, please contact us directly or your nearest dealer.