The world of insulation tends to rely on conventional materials such as rock wool or glass wool. Unhealthy and awkward materials, yet they continue to be used 'because we don't know any better'. Isobooster uses the reflective qualities of aluminium.
We all know that aluminimium is an effective insulator, judging from the amount of aluminium foil the average household uses to keep food hot or cold. In order to convince you that this simple, well-known principle can also be used on a bigger scale - to insulate your home - we will explain the science behind our innovative insulation foil.
Not absorbing, but reflecting
The purpose of insulation in renovation projects or new buildings is usually to keep heat inside the spaces for as long as possible. A buffer is created between the desirable room temperature and the undesirable outside temperature. Loss of heat is caused by materials absorbing heat rays. Unlike conventional insulation such as rock or glass wool, Isobooster is not based simply on separating heat from cold. Isobooster insulation foil reflects the heat radiation, sending it back into the room at almost the same intensity, simply reusing the heat that would otherwise have been lost.
Where does the heat come from?
The secret behind the success of Isobooster is the reflection of thermal infrared radiation. Infrared radiation is a band on the electromagnetic spectrum between visible light and microwaves (think of the microwave oven). Unlike other energy waves (such as UV-A), thermal infrared radiation is not absorbed by the air, but transmitted (let through). The radiation stays intact until it is absorbed by an object or surface. No energy is lost along the way (the radiation is not weakened). A lot of infrared radiation is the result of sunlight heating up surfaces and objects, which changes the frequency of that radiation and creates infrared. Wherever sunlight is absorbed, infrared can continue to heat. (click here for more information.)
...and where does the water go?
This thermal infrared radiation causes the water molecules to vibrate and disintegrate; evaporate. This effect occurs with so-called 'far infrared radiation' (which humans also radiate). It does not require any extreme heat or special equipment. It is a very common, everyday phenomenon.
In order to make moisture evaporate, even in places without any sunlight (e.g. crawl spaces and cavity walls or roofs), it is essential for the infrared to be reflected. That is where Isobooster comes in.
The power of repetition
The evaporation caused by thermal infrared radiation is already repeated and 'exploited' by the reflective qualities of Isobooster. Another great physical phenomenon which contributes to the repetition of this mechanism is the Coandă effect. The Coandă effect, also known as the ceiling effect, is the tendency of a liquid or gas to follow a convex surface rather than a straight line. The air flowing along the wall causes low pressure, making the rising air stick to the wall and causing a certain turbulence in the air on the wall surface. This air is then reflected by the insulation foil: the 'Isobooster effect'.
The drier, the better.
The repeated reflection of thermal infrared causes a lot more moisture to evaporate than would otherwise have been the case. As long as the vapour is allowed to escape, the air that remains is dry. Dry air insulates twice as well as humid air, leads to a healthier living environment, and helps to prevent mould. It also 'draws' the moisture out of the material (stone, wood or plaster), resulting in drier walls. Dry walls absorb more heat and give off heat much better than damp walls. Isobooster turns your walls and floors into effective infrared radiators! (Also read: "Using Isobooster to make your home damp-free".)
Physics (or rather, the world) is full of valuable and useful natural processes. With a bit of knowledge and insight, we can achieve maximum results with minimal means. As is so often the case, the smallest things hold the greatest power! If you would like more background information about the Isobooster effect, please have a look at our articles or simply contact us.
If you interested in using heat reflection for smarter insulation, just ask us for a quote! We have ample experience serving both the private and the professional market.