Aluminum Foil Polyurethane Insulation Board 50mm

Thickness : 50mm (optional 10-80mm)

Facing material : 600micron fiberglass tissue

Density : 30-50 kg/m3

Size : 1.2 m / 0.6m width, length can be customized

High-Performance Polyurethane Insulation Board 50mm

The Aluminum Foil Polyurethane Insulation Board 50mm is a premium rigid foam board insulation product, featuring a closed-cell polyurethane (PU) core laminated with reflective aluminum foil facings. Engineered to deliver high thermal performance, low water absorption, and enhanced durability, this rigid insulation board is ideal for use in building wall insulation, building roof insulation, and energy-efficient flooring systems.

Why Polyurethane Foam Board Insulation is a Smart Choice

This 50mm rigid insulation board combines lightweight structure with excellent insulation properties.

With a thermal conductivity as low as 0.022 W/m·K, the polyurethane foam board helps minimize heat transfer in both hot and cold climates.

The reflective aluminum foil layer enhances heat resistance while protecting the core from moisture and UV exposure.

It’s a popular solution in sustainable construction where high R-value and reduced thickness are essential.

GFIDuct Aluminum Foil Polyurethane Insulation Board 50mm

Technical Data Sheet

Property	Standard	Specification
Standard Width		600/1200mm
Thickness		50mm
Foam Density	ASTM D1622/D1622M-14	30-50kg/m³
CFCs and HCFCs	Headspace GC/MS	Free
Thermal Conductivity	ASTM C518-17	<=0.024W/m.K
Fire Rating	BS 476 Part 6&7	Class 0
Compressive Strength	ASTM D1621-16	>=0.15Mpa
Tensile Bond Strength	DB34/T 3826-2021	>=0.15Mpa
Water Absorption by Volume	ASTM C209-15	<3%
Dimensional Stability		70ºC 48h<=1.5% -30ºC 48h<=1.0%
Service Temperature	DB34/T 3826-2021	-30ºC – 120ºC

Why Choose GFI PIR Thermal Insulation Board?

01 / Efficient Thermal Insulation: This polyurethane foam board insulation offers an excellent balance between thermal performance and space-saving design. The 50mm thickness fits well into wall cavities, roof assemblies, or floor insulation layers, helping builders meet performance targets with minimal bulk.

02 / Durable Aluminum Foil Facing: The dual-sided foil enhances the rigid insulation board’s fire resistance, moisture protection, and radiant heat reflectivity. It also increases surface durability, making installation faster and safer in demanding construction environments.

03 / Moisture Resistance & Long-Term Stability: Over 90% closed-cell structure ensures this rigid foam board insulation resists water absorption and retains R-value over time. The foil facing acts as a vapor barrier, adding another layer of protection in humid or exposed areas.

04 / Eco-Friendly & Fire-Safe: Manufactured without CFCs or HCFCs, the polyurethane foam board supports green building standards. It meets Class 0 fire ratings under BS 476, minimizing flame spread, smoke emission, and promoting safety in structural applications.

Typical Applications of 50mm Building Insulation Panels

Building Wall Insulation: Used within cavity or external wall systems under cladding, render, or ventilated façades.
Building Roof Insulation: Suitable for flat and pitched roofs, either over deck or between rafters, improving energy retention.
Underfloor Insulation: Delivers thermal comfort and energy savings in slab-on-grade and suspended floor systems.
Industrial & Commercial Applications: Ideal for controlled environments where stable thermal performance is critical.

Buring Comparison Test

The following pictures show the state of the RLB-l Polyurethane Insulation fireproof composite board under the direct combustion of the 1300℃ flame torch for each period of time. During the entire experiment, the RLB-I Polyisocyanurate Insulation Board did not burn through and did not drip water. Preventing flame spread and heat conduction, no burning phenomenon.

Ready to Boost Your Building’s Thermal Efficiency?

Get in touch today to learn more about our 50mm Aluminum Foil Polyurethane Foam Board – the high-performance solution for rigid insulation in modern construction. Contact us now for technical support, pricing, or a custom quote.