ThermalLiner 4mm Reflective Insulation

Trade Select ThermalLiner™ is a thin, high-performing reflective insulation designed for easy installation in roofs, walls, and floors. At just 4 mm thick, it offers a fibre-free, non-irritant solution for builders and renovators looking to improve thermal efficiency and reduce condensation. With its double foil facing, it reflects up to 95% of radiant heat, acting as a thermal break and moisture barrier in one. Whether you’re lining a metal shed, insulating a garage ceiling, or retrofitting timber frames, ThermalLiner™ is an ideal choice for fast, effective insulation that also meets BAL requirements for bushfire zones. Durable, flexible, and rated Extra Heavy Duty, this insulation roll provides 30 m² coverage, helping homeowners and builders meet energy code requirements with ease.

Product Specifications

• Thickness: 4 mm

• Material R-Value: R0.10

• Emittance: 0.03 (foil side), 0.90 (anti-glare side)

• Vapour Classification: Class 2 Vapour Barrier

• Fire Classification: Low flammability | Suitable for all BAL zones

• Durability: Extra Heavy Duty

• UV Resistance: Up to 90 days

• Acoustic Properties: Minor echo and noise reduction benefit

Dimensions

• Roll Size: 1500 mm × 20 m

• Coverage Per Roll: 30 m²

Material Composition

• Core: Chemically cross-linked closed-cell XPE foam

• Facers:

  • Reflective aluminum foil on one side

  • Anti-glare laminated foil on the other for safe handling and installation

• Bonding: Thermally fused composite, fibre-free and non-irritant

Best Uses & Applications

• Shed & Garage Roofs/Walls:
  Lightweight and flexible — ideal for lining metal-clad sheds to reduce heat gain and improve comfort.

• Ceiling & Floor Applications:
  Can be installed under floors and ceilings to create a radiant barrier and prevent moisture transfer.

• Residential Timber or Steel Frames:
  Enhances performance of stud walls and ceilings in homes with limited cavity space or for retrofit jobs.

• Commercial Buildings:
  Useful in industrial sites, commercial mezzanines, or temporary constructions where rigid foam or batts are impractical.

• Bushfire Protection:
  Rated for all BAL zones — effective for use in bushfire-prone areas where flexible wrap and insulation are required.