Reflective insulation is, as a rule, a two-layer material of small thickness, which has a main insulation and a reflective surface. Usually, the foil acts as the latter, for which the corresponding coefficient can exceed 90%. As a basis, different materials are used with high efficiency. In order to give the layers good physical and mechanical properties, manufacturers use a grid as one of the layers.
Where different types of foil insulation are used: BestIzol
If you are interested in reflective insulation, then you can consider several varieties of such materials, among others it is necessary to highlight "BestIzol", which is a vapor, heat and sound insulation with a high level of reflectivity.
This insulation is made of closed cell polyethylene film, as well as aluminized foil. Polyethylene foam is used with a thickness that depends on its brand and varies from 2 to 10 mm. As for aluminum foil, its thickness can reach 14 microns, while the minimum value is 7.
To date, this reflective insulation is offered for sale in several varieties, among others, type “A”, type “B” and type “C” should be highlighted. The first option is insulation based on polyethylene foam with one-sided foil. The second solution has double-sided foiling, while the third has a foil layer on one side, and adhesive with release material is applied to the surface on the other.
This insulation is effective not only for residential buildings, but also for the insulation of ships, vans, refrigerators, metal structures and ventilation ducts. This material is very light and durable, so it can be built into metal structures and fixed to the control elements or frame. This eliminates the additional cost of temporary structures and gratings for insulation.
Additional area of use of "Best Isol"
The above reflective insulation has a fairly wide area of use. It can be applied by installing behind heating radiators, which allows to increase their efficiency by 30% maximum. If you install such a sheet behind a heating radiator, then a larger amount of heat will be reflected inside the room. The radiation will work to heat the room.
Using a variety of "Best Isol" type "A", you can insulate pipes of small diameter. The material is wrapped around the products, but for a hot pipeline, in order to achieve the maximum effect, it is necessary to use bandage 20-mm rings of the same material. An alternative solution is an asbestos cord or fluoroplastic. In this case, a thermos effect is formed between the insulation and pipes. However, in this case, it is recommended to purchase "Best Isol" type "B".
How to use "Best Isol"
The above-described reflective insulation, the use of which is almost unlimited, is also used for roof girders. To do this, the material is laid from the cornice to the cornice, and it must be carried out through the ridge. It can sag 20 mm between runs. Fastening is carried out with construction brackets, which are installed at a distance of 150 mm from each other. At the same time, ventilation is maintained, which is provided for by the building structure. Double-sided insulation is suitable for this.
If with it insulation of attic rooms is carried out , then it will be necessary to ensure the presence of an air gap between the insulation or the ceiling. To do this, purchase reflective insulation with one-sided foil, which should be directed outward. Additionally, rails are stacked, the distance between which will be 250 mm.
Where to use Penofol
The traditional insulation can be supplemented with Penofol. It forms the basis of the design during the construction of low-rise frame buildings, increasing the thermal resistance of the walls, because their volume increases. Using this insulation, you can reduce heat loss, because it has high reflectivity and is a reliable vapor barrier.
Penofol reflective insulation complements massive insulation and reduces its volume, increasing its service life. You can use the material for insulation:
It goes to the insulation of floors and their insulation, as well as the insulation of walls, ventilation ducts and pipes.
How to use Penofol for a roof
The maximum effect when using Penofol for the roof can be achieved by providing an air space of 2 cm on both sides of the insulation. Aluminum conducts electricity well, so the wiring should be protected. Before installing the material, it is important to take care of the reliability of the wiring. The insulation used will reflect up to 97% of the heat flux. The inner layer of thermal insulation of the roof must be sealed.
The reflective layer must be directed towards the heat source. In order to achieve complete tightness and waterproofing, the joints must be glued with foil tape. The basic rule is that the foil acts as an excellent conductor of electric current. To fix the material from the inside, prepare self-tapping screws or a stapler. For this, it is most convenient to purchase 5 mm sheets. If you have to work in a house or apartment, then you need to use one-sided material. But in the case when the walls are very cooled, additional insulation should be done with polystyrene foam or cotton wool.
Purpose of isolation of VPE lavsan
The reflective insulation of VPE is made of foamed polyethylene and has a silver surface. This material is practical, ready to serve for a long time, affordable and universal. It is used for noise and heat insulation of premises for various purposes. With its help it is possible to achieve partial damping of vibration. The products are placed under the decorative coating of the floor, ceiling and walls, and they can be used even in those conditions where high humidity will be preserved during operation.
How to use the insulation of VPE
Reflective insulation Dacron VPE can be mounted on surfaces with any configuration. The material is effective in low-rise construction, and the canvases are attached end-to-end, while overlap must be eliminated. The joints must be sealed with special adhesive tape made of foil. A composite of polyethylene and aluminum can be used for this.
The connecting element is characterized by strength, as well as moisture resistance and the ability to reflect infrared radiation and ultraviolet. The service life can reach the time of use of the foil layer itself. Using reflective insulation lavsan VPE, you can reduce heating costs and achieve significant energy savings.
It is possible to lay the insulation under parquet, laminate or other floor coverings, as well as in the underfloor heating system under plaster or cement screed. 10 mm reflective insulation is the thickest version of this coating. The minimum thickness is 2 mm, the width remains the same and equal to 1 m. But the length varies from 10 to 100 m. For 10 mm thickness, the price of one square meter will be 58.13 rubles.
How and where is insulation with different types of reflectance used
All types of heat-reflecting insulation can be classified into three types, each of them is indicated by its letter. For example, Type “A” is a foam polyethylene material with foil on one side. This insulation is universal and can be installed on any surface. It is glued with special glue or nailed to a wooden surface with brackets or nails.
The one-sided coating speaks for itself, because you can use this solution in most cases for internal work, installing foil inside the room. Type “B” is also a foamed polyethylene, however its thickness reaches 5 mm. The coating is on both sides, it is foil and expands the scope of use. This material can be used for refrigerators, which should not allow heat to pass on the one hand, and not to let out cold on the other. This reflective insulation can be used for piers if you need to maintain your temperature in different rooms.
The last type of isolation is Type C. If you compare it with type "A", then it has a self-adhesive base, but otherwise is almost no different. An additional advantage is the convenience of work.
Conclusion
Today, there are other types of thermal insulation. Among others, it is worth highlighting those in which the same foil is used as a reflector, and basalt wool is the main layer. It can be one-sided or two-sided, so this insulation is an excellent solution for frame buildings. This is true for other buildings also because the material has a minimum thickness, which allows you to save free usable space inside the house, and this is important when it comes to typical apartments of multi-storey buildings.