High-Performance Loft Insulation with Lasting Benefits
At Think Eco, our advanced insulation solution is ideal for loft spaces, providing exceptional thermal performance while maintaining full breathability. It helps regulate indoor temperatures year-round, keeping your home warmer in winter and cooler in summer, without trapping moisture or compromising roof integrity.
This breathable insulation reduces heat loss, lowers energy bills, and supports a healthier indoor environment. It’s quick to install, maintenance-free, and built to last, delivering long-term comfort and efficiency without the issues associated with spray foam or traditional materials.
Superior Performance in a Slim Profile
Our Multi Foil Loft Insulation is the world’s highest-performing EN-certified reflective multifoil insulation, engineered for maximum energy efficiency in minimal space. Manufactured in the UK and trusted by professionals nationwide, this premium-grade insulation consists of 19 advanced layers, including highly reflective True Aluminium foil, high-density foam, and recycled wadding.
At just 40mm thick when uncompressed, and compressing to around 10mm when installed, it’s perfect for space-conscious lofts, extensions, and retrofits. With a certified R-Value of 2.50 m²K/W and foil emissivity of 0.02, it delivers excellent thermal performance while also acting as a high-performance vapour control layer.
Certified Quality = Real Savings
Our Multi Foil Loft Insulation is more than just high performance, it’s certified peace of mind. With BBA & BDA certifications and approval from NHBC and LABC, you can be confident this insulation meets UK building standards.
Aside from technical excellence, it also brings real-world advantages. You can save up to 10% more space and cut insulation costs by as much as 30%, compared to traditional systems.
- BBA & BDA Certified, approved by NHBC & LABC for Building Control
- 19 layer multifoil insulation
- Suitable for New Builds and Renovations
- Highly Reflective True Aluminium Outer Layers
- High Performing Vapour Control Layer
- Class 1 Surface spread of flame
Our Frequently Asked Questions
Our Multi Foil Insulation is made up of 19 high-performance, itch-free layers. These include pure aluminium foil on both the outer and inner surfaces, with a core made from reflective foils, recycled wadding, and PE foam layers. This multi-layered construction delivers outstanding thermal performance while remaining flexible, lightweight, and easy to install.
Yes, Multi Foil Insulation is completely safe. It contains no harmful fibres and doesn’t emit any toxic gases during cutting or installation. It’s clean, non-irritating, and easy to handle, so there’s no need for masks, gloves, or other PPE when fitting it – a safe and hassle-free solution for insulating your loft or roof space.
Multi Foil Insulation comes in a single standard thickness: 40mm when uncompressed. Once installed, it typically compresses down to around 7mm, making it ideal for tight spaces while still delivering excellent thermal performance.
Yes. To achieve optimal thermal performance, we recommend maintaining a minimum 25mm air gap on both sides of the Multi Foil Insulation. These cavities allow the material to fully expand and maximise its reflective properties.
If air gaps are removed or reduced, the insulation’s overall effectiveness can drop by approximately 20%.
Multi Foil Insulation holds a Class E Euro Fire Classification, which means it is not fully fireproof. However, the outer layers are made from true aluminium, which is naturally flame-resistant. If exposed to a naked flame, the material will smoulder rather than ignite or spread, offering a safer response compared to many traditional insulation products.