Frequently Asked Questions
Bubble insulation consists of polyethylene air bubbles laminated with a reflective aluminum or metallized foil surface. It works through a dual mechanism: the foil reflects up to 97% of radiant heat, while the trapped air inside the bubbles blocks thermal conduction and convection.
While both are lightweight and feature a reflective foil facing, bubble insulation uses trapped air in flexible plastic bubbles as its core, offering good cushioning and vapor blocking. EPE foam insulation uses expanded polyethylene foam, which typically provides higher compressive strength, better sound dampening, and a smoother surface for lamination.
A radiant barrier needs an empty air space (typically 20mm to 25mm) adjacent to the foil surface to function properly. Without an air gap, heat can transfer via conduction through direct contact with other materials, significantly reducing the insulation's overall efficiency.
Yes. The plastic bubble matrix and continuous aluminum foil layers have extremely low water vapor permeance, making it an excellent vapor barrier that prevents condensation, mold, and mildew growth in roof and wall cavities.
