Does foil insulation need air gap on both sides?

Cover the surface you want to insulate with foil. Make sure there is a small air gap on both sides for maximum performance. Overlap at the edges and staple them together to the batten. Line the staples with adhesive tape to make the insulation airtight.

superfoil.co.uk - Benefits of Multifoil Insulation - SuperFOIL

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Building your own home from the ground up is no easy feat. One of the many factors self-builders don’t take into account is insulation. Not only do you have to adhere to regulations but your bills will also be affected. For many self-builders, multifoil insulation is the solution. There are several reasons behind this as we are about to show you.

MULTIFOIL INSULATION IS EASY TO INSTALL

A self-builder can easily insulate the whole house on their own with multifoil. All you have to do to insulate an attic is: Cover the surface you want to insulate with foil. Make sure there is a small air gap on both sides for maximum performance.

Overlap at the edges and staple them together to the batten.

Line the staples with adhesive tape to make the insulation airtight.

Fold the edges, staple them and secure them.

The foil is very thin compared to other insulators. You can fit it in tight spaces and anyone with basic knowledge can apply it. When installing any form of insulation, you need to watch out for areas susceptible to heat transfer. Multifoil is no different so make sure there are no thermal bridges when planning.

MULTIFOIL INSULATION CAN BE USED ALMOST ANYWHERE

Being so thin, the insulation can be applied to more than just the attic. You can use it on walls and floors as well. Using it to cover your whole home will yield the favourable results and achieve a great U-value. Multifoil insulation does not absorb heat as other products do. It reflects it, protecting against radiant heat. While the roof of a house needs insulation the most, walls and floors contribute to heat loss as well.

MULTIFOIL INSULATION IS EFFECTIVE

It is designed to protect against radiation, never warming up. Despite this, the foils work against conduction and convection as well. This way, heat transfer is minimised even more. The insulation is installed with small air gaps on either side to reduce conduction. The separators between the sheets of foil have the same purpose. The fact that the insulation is airtight also means that convection does not have a powerful impact on the inside temperature. A strong suit of multifoil insulation is the fact that it’s equally useful regardless of the season: In the summer, the sun’s rays are the primary reason why the house warms up. The foil reflects those rays away from the house. The house experiences a much smaller rise in temperature. During winter, the heat in the house bounces off the foil, staying inside. There is less heat loss, and the bills are not as high as a result. The insulation also requires little maintenance, with an average lifetime of 50+ years.

MULTIFOIL INSULATION WORKS WELL WITH OTHER INSULATION PRODUCTS

This insulation is also favoured among self-builders because it can be used in tandem with other products. Because of how thin it is, you can also add thermal foam, for example. It also means that you can add something new when renovating if you’d like your home to be even better protected from heat loss. With all these advantages, it’s easy to see why self-builders choose multifoil. It makes the process of insulating the house fast and easy without sacrificing quality. If you’d like a real demonstration of what multifoil insulation can do, get our free sample pack. It’s got data sheets as well as samples of the insulators we provide. Don’t just take our word. See for yourself.

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