Kingspan Aircell Permifloor 500 is designed to save you time on-site while preventing the “moisture traps” that can rot floor joists over time. Think of it as a high-performance breathable skin for the bottom of your house.

Features:

  • It acts as both your insulation and your moisture control. You don’t need to mess around with separate layers.
  • Most foil insulation traps water, which leads to mold. Permifloor has tiny, laser-cut holes that let water vapor escape, keeping the timber dry and healthy.
  • It uses a “cross-linked” closed-cell foam. In plain English: it’s durable, doesn’t soak up water like batts, and won’t sag over time.
  • 500mm Width: Pre-cut to fit standard joist spacings. No more awkward trimming.
  • Reflective Foil: Bounces heat back into the house in winter and keeps it out in summer.
  • Australian Made: Built to handle our specific climate and council standards.

Because it’s pre-cut to 500mm, it’s a “drop-in” solution. Simply roll it out between your joists. The perforated design means even if a pipe leaks or condensation builds up during the build, the water drains through instead of pooling on top of the insulation.

Applications:

  • Install between floor joists in suspended timber floors to keep heat from escaping during winter.
  • Fit beneath existing floors in older homes to reduce cold draughts coming up through the floorboards.
  • Use in raised flooring systems to improve the overall energy efficiency of the house.
  • Line the bottom of sub-floor spaces to provide a continuous thermal barrier while allowing moisture to drain away.
Width

500mm

Length

30m

m2

30

Kingspan Aircell Permifloor 500 Underfloor Insulation

$414.22 Incl GST

Note: Shipping calculated at checkout.

A heavy-duty, breathable underfloor insulation designed for suspended framed floors. This Australian-made solution combines a high-performance reflective foil with a water-permeable foam core. Pre-cut at 500mm wide, it is engineered for a fast, seamless fit between standard joists.

Dimensions: 2 x 500mm x 30m | Normal Thickness: 4mm | Roll Diameter: 420mm | m2 per pack: 30m2

Delivery

Search location for shipping options available

Need a Quote for a Large Project?

guaranteed safe checkout

Kingspan Aircell Permifloor 500 is designed to save you time on-site while preventing the “moisture traps” that can rot floor joists over time. Think of it as a high-performance breathable skin for the bottom of your house.

Features:

  • It acts as both your insulation and your moisture control. You don’t need to mess around with separate layers.
  • Most foil insulation traps water, which leads to mold. Permifloor has tiny, laser-cut holes that let water vapor escape, keeping the timber dry and healthy.
  • It uses a “cross-linked” closed-cell foam. In plain English: it’s durable, doesn’t soak up water like batts, and won’t sag over time.
  • 500mm Width: Pre-cut to fit standard joist spacings. No more awkward trimming.
  • Reflective Foil: Bounces heat back into the house in winter and keeps it out in summer.
  • Australian Made: Built to handle our specific climate and council standards.

Because it’s pre-cut to 500mm, it’s a “drop-in” solution. Simply roll it out between your joists. The perforated design means even if a pipe leaks or condensation builds up during the build, the water drains through instead of pooling on top of the insulation.

Applications:

  • Install between floor joists in suspended timber floors to keep heat from escaping during winter.
  • Fit beneath existing floors in older homes to reduce cold draughts coming up through the floorboards.
  • Use in raised flooring systems to improve the overall energy efficiency of the house.
  • Line the bottom of sub-floor spaces to provide a continuous thermal barrier while allowing moisture to drain away.
Width

500mm

Length

30m

m2

30

Shopping Cart