70mm PIR Insulation: The Ideal Thickness for Building Insulation

In modern construction, choosing the right insulation material—and the right thickness—is critical to meeting both energy efficiency standards and practical site requirements. Among the various insulation options available today, 70mm PIR insulation boards are increasingly favored for their optimal performance-to-thickness ratio in a wide range of building systems.

At GFI, we manufacture and supply high-quality rigid PIR thermal insulation boards designed for reliable performance building insulation applications.

Why Choose 70mm PIR Insulation?

The 70mm thickness is a strategic middle-ground: it offers better thermal resistance than 50mm boards, while being lighter and easier to install than 100mm or 120mm alternatives. It’s particularly suitable for projects that aim to:

• Meet building code U-values without overbuilding.
• Improve energy performance while minimizing wall thickness.
• Retrofit insulation into existing systems with limited space.
• Reduce material weight and simplify transport or handling.

Performance Highlights

应用

• External Wall Insulation (ETICS or ventilated cladding systems)
• Roofing Systems (bituminous membranes or waterproofing layers)
• Insulated Concrete Forms (ICFs)
• Floor Underlay Thermal Barrier

Why Builders Prefer 70mm PIR Boards from GFI

• Manufactured with high-precision tolerance control
• Low smoke emission and excellent fire behavior
• Lightweight and easy to cut, handle, and install
• Long service life, dimensionally stable
• Competitive pricing for large-scale projects

Need insulation that balances performance and thickness?

Choose 70mm PIR insulation board from GFI—where quality meets application flexibility. Contact us for product catalogs, pricing, or custom dimensions.