5mm Double-Sided Aluminium Foil Thermal Insulation

Improve thermal comfort and reduce heat transfer with our 5mm Double-Sided Aluminium Foil Thermal Insulation. Featuring reflective aluminium foil on both sides and a lightweight foam core, this versatile insulation material is designed for automotive, marine, caravan, campervan, van, shed, workshop, and general DIY applications.

The reflective foil surfaces help reduce radiant heat transfer, while the foam core provides an additional insulation barrier. Lightweight, flexible, and easy to cut, it can be customised to suit a wide range of projects.

Key Features

✔ Double-sided reflective aluminium foil

✔ Lightweight 5mm foam insulation core

✔ Helps reduce radiant heat transfer

✔ Assists with maintaining more comfortable interior temperatures

✔ Moisture and condensation resistant

✔ Flexible and easy to cut to size

✔ Durable and long-lasting construction

✔ Suitable for automotive, marine, caravan, campervan and DIY applications

Common Applications

Automotive & 4WD

• Roof insulation
• Door cavities
• Floor insulation
• Cargo areas
• Firewalls and bulkheads
• Vehicle fit-outs

Caravan & Campervan

• Wall insulation
• Roof and ceiling insulation
• Floor insulation
• Storage compartments
• Interior thermal barriers
• DIY window blockout panels
• Privacy screens for camping and overnight stays

Vans & Commercial Vehicles

• Cargo area insulation
• Wall and roof insulation
• Tool storage compartment insulation
• Window blockout panels for work vehicles
• Van conversion projects
• Privacy and sun-blocking screens for side and rear windows

Marine

• Boat cabins
• Hull lining insulation
• Storage lockers
• Side wall insulation
• Heat reduction around glazing areas

Workshop, Shed & DIY

• Shed walls and roofs
• Garage doors
• Workshop insulation
• Tiny homes
• Portable buildings
• Equipment enclosures

Why Choose Double-Sided Foil Insulation?

The double-sided foil surface reflects radiant heat from both directions, helping improve thermal performance in enclosed spaces. Unlike heavy acoustic products, this material is designed primarily for thermal insulation, heat reflection, moisture resistance, and lightweight coverage.

The lightweight yet durable construction also makes it popular for creating removable window blockout panels for campervans, work vans, commercial vehicles and 4WDs. Custom-cut panels can help reduce heat entering through glass, improve privacy and minimise glare while parked or working on-site.

Whether you're fitting out a campervan, insulating a caravan, upgrading a 4WD, lining a boat cabin, or improving comfort in a shed or workshop, this insulation provides a practical and cost-effective solution.

Product Specifications

• Thickness: 5mm
• Construction: Double-Sided Aluminium Foil / Foam Core
• Colour: Reflective Silver
• Water Resistant: Yes
• Easy to Cut and Install: Yes

Suitable For

🚐 Campervans & Motorhomes

🚙 4WDs & Touring Vehicles

🚚 Vans & Commercial Vehicles

🚐 Caravans

⛵ Boats & Marine Applications

🏠 Sheds, Workshops & DIY Projects