Multifoil Insulation

Multifoil insulation is one of the most popular space-saving options on the market. It is engineered to target radiation, conduction, and convection. Multifoil roof insulation and multi foil loft insulation are comprised of layers of materials that keep your home warm in the winter and cool in the summer. Multi foil is very thin and ideal for installation alone or within a build-up of other materials. Even the thinnest rolls promise low U-Values.

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What Is Multifoil Insulation? 

Multifoil insulation is thin, flexible, and lightweight. Whereas most other insulation products are made from one material, multifoil insulation is made from lots of layers of different materials. It is made from reflective aluminium foil, polypropylene, and thermo-foam. Thin, reflective layers of materials are sandwiched between insulation wadding (polypropylene). The result is an extremely thin, airtight roll that contributes very little to the U-Value of a build-up of materials. 

We stock the best multi foil insulation on the market. The products in our range target radiation, convection, and conduction. The reflective layers function as an airtight barrier and reduce the chance of condensation. They also control the amount of solar radiation that enters your home. If you struggle to keep your home cool in the summer and warm in the winter, multi foil loft insulation and roof insulation can solve your problem. 

The layers of wadding inside each roll trap air between the reflective surfaces. This is how multifoil rolls prevent conduction. Each roll has either a fibrous core (which reduces heat loss through convection and conduction) or a bubble-like structure (which contain pockets of air that reduce heat transfer). All rolls are faced with low-emissivity aluminium foil, which reflects infrared radiation back into your home.  

 

Actis Multi Foil Insulation

Actis specialises in manufacturing premium-quality multifoil insulation. This company creates tailor-made solutions for common insulation problems. Actis Boost R Hybrid is designed for installation on the cold side of roofs. It is comprised of a breather membrane and reflective foil. It is popular amongst people who want to save installation time with an all-in-one product. This multifoil roof insulation also has a vapour control layer, meaning you do not need to worry about rot or fungus affecting the longevity of the materials. 

Actis Hcontrol, Isodhesif Tape, and Actis Hybris are other popular ranges from the same manufacturer. Actis Hybris panels are ideal for new build or retrofit insulation needs. Hybris provides homeowners with temperature control insulation that will make their space cool in the summer and warm in the winter.

SuperFOIL Multi Foil Insulation

SuperFOIL is best known for creating high-performance 3-in-1 silver multifoil insulation. Like the other multifoil rolls in our range, SuperFoil SF19+ insulation will improve the thermal envelope of your home. It also contains a radiant barrier and a vapour control layer. SF19+ rolls control the temperature of your home throughout the year. These rolls help to retain heat inside your home in the winter and reduce the amount of hot air that infiltrates your home in the summer. 

All SuperFoil SF19+ products are manufactured with 40% recycled materials. They are ideal for people who want environmentally-friendly insulation that meets new build regulations.  In most cases, SF19 rolls are installed over and under rafters and studs in lofts. They are also certified for use in walls. 

SF19BBand SuperCLOSE are also part of the SuperFOIL range.

Best Multi Foil Insulation 

Multifoil insulation is very thin. It provides the best thermal protection for people who need to insulate small spaces. Multi foil insulation can be installed alongside a build-up of other materials to improve the overall U-Value. The rolls are so thin that they can slot in alongside existing build-ups. Lots of people choose these rolls when they want to improve their existing insulation without removing the entire build-up and starting from scratch. 

This type of insulation promises thin rolls with optimal thermal protection. Construction professionals debate about the optimal thickness, but most rolls are between 35-45mm, which is considered to be a good level.

Frequently Asked Multifoil Insulation Questions 


What Are the Benefits of Multi Foil Insulation? 

There are lots of benefits of choosing multifoil insulation:

Installation – Multifoil rolls are very lightweight and easy to handle. The materials inside the rolls do not create airborne dust particles that pose a threat to health. 

Uses – This type of insulation is often installed in roofs. It works well as roof insulation because it traps heat inside homes in the winter and stops hot air from entering homes in the summer. 

Lifespan – Multi foil rolls have a lifespan of over 50 years. They contain a vapour barrier that makes them resistant to rot. They are ideal for people who live in areas with high rainfalls. 

Build-up – Multi foil loft insulation rolls are very thin. They can slot in alongside a build-up of thick materials with ease. Despite being thin, the rolls deliver excellent protection against conduction, convection, and radiation. 


What Are Multifoil Insulation U-Values? 

The term U-Value is often confused with thermal conductivity. Both are measured in Watts per meter-Kelvin (W/mK). Thermal conductivity refers to how well a single insulation product transmits heat. U-Value refers to how well a build-up of materials transmits heat. 

Multifoil roof insulation rolls have very low U-Values. SuperFOIL SF19BB has a U-Value as low as 0.010 W/mK.


Is Multifoil Insulation Fireproof?

Not all multi foil rolls are fireproof. All insulation materials have a classification on the Euroclass scale. Materials undergo up to five tests to get a classification from A1 (non-combustible) to F (combustible). Most insulation products, especially those that are composed of lots of different materials like multifoil roof insulation, land somewhere in the middle of the scale. 

SuperFOIL SF19+ rolls have a Euroclass rating of E when they are placed behind plasterboard. Some multi foil rolls do not have a Euroclass rating, because they are designed for use in a build-up of materials rather than on their own.