Foil insulation is particularly effective at reflecting radiant heat, which can be beneficial in both summer and winter. However, in order for it to work effectively, there needs to be an air gap between the foil layer and the surface it's installed on.
It is generally more expensive due to being a metal-based product. It is also important to note that in order for foil insulation to work correctly, it must be kept free of any dust. This means in some areas, such as roofs, it may require being cleaned of dust from time to time to ensure maximum efficiency.
This unique material can reflect up to 97% of radiant heat. The transfer of heat through materials happens either by conduction, convection or radiation. The low-emissivity outer layers of the foil insulation rolls reflect up to 95% radiant heat back into the building.
Its ability to resist the passage of moisture and reflect heat makes it a standout choice for hot water underfloor heating systems and other slimline insulation needs.
Foil insulation can prevent radiant heat loss all year round. In summer, it can prevent heat from entering by reflecting sunlight. In winter, it can reflect heat back inside a room, keeping it warmer.
When it comes to foil insulation, it's generally recommended to leave an air gap of at least 25mm (1 inch) between the foil layer and the surface it's installed on.
Polyester Rolls. One of the best ways to keep the house warm and cosy is through underfloor heating insulation, and polyester rolls are the most dependable insulators. They trap billions of air pockets between them and prevent heat from transferring from the floors.
PIR (polyisocyanurate) insulation materials offer high thermal efficiency and are often used in underfloor heating systems. They have low thermal conductivity and provide effective insulation. We recommend a Recticel Eurothane PIR board with an underfloor heating kit.
In addition to this, insulation may need to provide a firm surface to carry the floor screed that is needed for electric underfloor heating installation as well as for wet UFH. To that end a rigid insulation materials – PIR, polystyrene or wood fibre – can give the best results, as discussed further below.
The R-value of 3/8-inch-thick foil-faced expanded polystyrene foam is about 1.6. By contrast, 2 inches of extruded polystyrene insulation has an R-value of 10.
Though there are many choices for insulating roofs and walls today, rock wool or fibreglass insulation is what most people think of. They insulate well and are affordable.
Multifoil Insulation Has A Long Life Span
That's why you should choose multifoil for your roof insulation. With a life expectancy of over 50 years, multifoil insulation lasts longer than many other types of insulation so that you can get the most for your money.
Results: It was found that the aluminum foil and cotton were the best insulators for keeping the water cold while the Styrofoam sheets and the bubble wrap were the worst two insulators for keeping the water cold.
The best way is to run your heating system continuously through the winter months, using the thermostats in the room to maintain the temperature. This might sound illogical and use more energy, but this will use less energy than switching the system on and off!
For an efficient system and quick response times, set your underfloor heating temperature to 16°C in “off” periods. This will result in a quicker warm up time as the heating system needs to supply less energy.
Fiberglass batt and foam board insulation are the two most popular types of insulation for floors for DIYers because of their ease of installation compared to other materials. Both fiberglass batt and foam board typically run cheaper than spray foam.
While Celotex offers a 12mm TB4000 foil faced insulation board, Xtratherm offers 15mm Thin-R range. Both brands are qualified to be the thinnest insulation boards for underfloor heating.
You can either install a single layer or multiple layers of foil insulation, and you can mix it with other products. Here at SuperFOIL, we're just as proud of our customer service offering as we are the quality of our products, which is why we welcome you to contact us on 01636 639 900 with any questions.
Radiant Barriers (Reflective Insulation)
Reflective, radiant-barrier insulation is usually made of aluminum foil with a variety of different backings, including plastic film and cardboard. This type of insulation is most effective in warmer climates, but can also be used for comfort and energy savings in cold weather.