Kingspan Aircell Permifloor is built specifically for suspended framed floors. It does two jobs at once: it keeps the house at the right temperature and keeps the timber framing bone-dry. For builders, this means fewer call-backs for mold or moisture issues down the line. It’s an Australian-made, high-performance upgrade from standard insulation. It’s faster to install, safer for the timber, and keeps the house more energy-efficient without the risk of moisture buildup.

Features:

• Stops Water Damage: Most insulation acts like a plastic bag, trapping condensation that rots your joists. Permifloor has tiny, laser-cut holes that let water vapor escape, keeping the sub-floor healthy and dry.
• Tough & Clean: It’s made from a cross-linked foam that won’t soak up water or sag like glasswool batts. Plus, it’s fiber-free, so you won’t be itching all day after the install.
• Pest Resistant: Rats, mice, and insects hate it. It doesn’t provide the soft nesting material that traditional batts do, so the sub-floor stays cleaner for the life of the building.

Sizing for Every Job:

• The Big Roll: Comes in a massive 1350mm x 33.33m roll (45m² total). Perfect for covering large areas quickly or for custom floor layouts.
• The Pre-Cut: Also available in 500mm widths to fit straight between standard joists, cutting down on-site waste and trimming time.

Applications:

• Install between floor joists in timber-framed houses to keep heat from escaping through the floorboards.
• Retrofit underneath existing homes with raised foundations to reduce cold drafts and floor chill.
• Use in suspended framed floors to meet energy efficiency ratings while allowing moisture to drain away.
• Secure under flooring in crawl spaces to provide a continuous thermal barrier without trapping water.
• Apply to the bottom of joists in deck-to-indoor conversions to help regulate the temperature of the new room.