EcoFoil Double Bubble Foil Insulation is engineered for spaces that experience wide temperature swings, including pole barns, metal buildings, basement walls, crawl spaces, and storage units. The two-layer bubble core creates an effective air gap that slows heat transfer and helps prevent frost and condensation caused by warm and cold surfaces meeting. At roughly 1/4" thick, this lightweight insulation installs quickly with simple tools. The white/foil option provides the same thermal performance as foil/foil but features a clean white facing for a more finished interior appearance.

Radiant Heat Reflection & Vapor Barrier Protection

This insulation reflects up to 94% of radiant heat, helping maintain more stable temperatures year-round. When all seams are taped, it also functions as a vapor barrier by blocking air and moisture movement—reducing the risk of mold and moisture-related damage. Proper taping is essential to ensure the insulation performs as one continuous layer.

Double Bubble Insulation for Barns, Metal Buildings & Utility Spaces

Unlike fiberglass or spray foam, which absorb and hold heat, radiant barrier insulation reflects heat back toward its source. When used together with traditional insulation, the system can significantly improve both winter and summer performance. Radiant barriers are measured by reflectivity and emissivity rather than R-value, and when installed with an air gap, Double Bubble Insulation effectively reflects heat away in summer and retains warmth in winter.

Key Features

• Dual-bubble thermal break: Built-in air gap reduces heat transfer and helps prevent condensation.
• High radiant reflectivity: Reflects 94% of radiant heat for improved year-round comfort.
• Vapor barrier when taped: Sealing all seams blocks air and moisture movement.
• Lightweight, easy installation: Thin 1/4" profile cuts and installs quickly with basic tools.
• Great for cold and moderate climates: Ideal for pole barns, metal buildings, basements, crawl spaces, and storage units.
• Clean white interior option: White/foil version offers a more finished interior look.
• Not for under-slab use: For slab or radiant floor projects, use EcoFoil Under Slab Insulation.

Note: Double Bubble Foil Insulation should not be installed under concrete slabs. For those applications, choose EcoFoil Under Slab Insulation.