Foil Insulation

Absolutely! Foil insulation, especially multi-foil types, excels at reflecting radiant heat, providing excellent thermal performance with a slim profile. It's ideal for roofs, walls, and floors, helping reduce energy bills by up to 25% while offering vapour control and durability. Our collection features top brands like TLX and Soprema for reliable, easy-to-install options that meet building regulations.

Yes, for optimal performance, foil insulation - particularly radiant barrier or multifoil types - typically requires an air gap of at least 1/2 to 3/4 inch on at least one side to effectively reflect radiant heat and prevent conduction. Without it, heat transfer can actually increase, so always follow manufacturer guidelines for installation in roofs, walls, or floors. Our TLX and Soprema products are designed with this in mind for superior energy efficiency.

Reflective foil insulation excels at reflecting radiant heat but has limitations: it typically requires a clean air gap (often ¾ inch or more) on at least one side to work effectively, provides low standalone R-value against conduction and convection (often R-1 or less without proper setup), and is less effective in cold climates where it doesn't trap heat well.

he life expectancy of foil insulation varies by type, quality, and installation: high-quality multifoil or reflective foil can last 20-50 years or more with proper maintenance, while lower-grade bubble foil may deteriorate in 5-15 years due to UV exposure, heat, or humidity. Factors like dust buildup, punctures, or poor ventilation can shorten its lifespan, but premium options resist moisture, pests, and tearing for long-term durability. Our TLX and Soprema multi-foil products are built for extended performance, ensuring reliable energy savings over decades when installed correctly.

It depends on the product and installation, but many multi-foil insulation like those in our collection have built-in vapour control, often eliminating the need for a separate barrier. For example, TLX Silver acts as a 2-in-1 insulating vapour control layer when taped at joins, providing airtight moisture protection without extras. Soprema's reflective foil also serves as a vapour barrier and shouldn't be paired with another to avoid issues. Consult product specs and building regs for your setup - our TLX and Soprema options deliver integrated, reliable performance for roofs, walls, and more.

Foil insulation itself does not inherently cause condensation - rather, it's typically the result of warm, moist air meeting a cold surface, such as the foil if it's cooler than the dew point. However, improper installation without adequate ventilation, air gaps, or vapour control can lead to moisture buildup and condensation on the foil's underside, potentially causing issues like mould or reduced insulation effectiveness in cold climates or attics. Our TLX and Soprema multifoil products incorporate built-in vapour barriers to minimise these risks, ensuring better moisture management and performance when installed correctly.

Proper installation of foil insulation, such as multi-foil types, varies by application (e.g., roofs, walls, floors) but generally involves creating air gaps, sealing joins, and ensuring vapour control for optimal performance. For pitched roofs, start by assessing rafter depth and project type; install below/between rafters using products like SuperQuilt (or our TLX Silver equivalent) with optional traditional insulation, taping all overlaps for a vapour barrier. For over-rafter setups, use breathable options like BreatherQuilt (similar to Soprema's reflective foil) draped across, eliminating separate membranes. Always follow manufacturer guidelines, maintain air spaces, and check building regs. For a detailed step-by-step guide on pitched roofs, visit our installation guide. Our TLX and Soprema products make installation straightforward and effective for energy-efficient results