In 2004 was established the new factory of Kintrade Ltd. , since then the company is producing polyethylene foam film. The foamed polyethylene is a good sound insulator, has thermal insulation properties comparable to those of expanded polystyrene and it is easy to ruse as it is with various thicknesses and it is far more resilient than others thermal insulation materials. The exploiting temperature range of the polyethylene foam film is from – 60 to + 80°C. It is designed as well for insulation pads under wooden and laminated floors, insulation of ducts, pipes for any kind of liquids, walls and attics insulation, also for pa packaging of furniture, ceramics, glassware and more.

• 1 mm is good for packaging of various types and dimensions furniture, technics and more
• 2 mm is good for pads under laminated floor, array floor, also for packaging
• 3 mm is used at uneven coat of room, pads under laminated or array floors, also for furniture packaging
• 5 mm is used as a floor pads under extremely uneven coats and filling the gaps between concrete pavements
• 5, 10, 15 mm are used for insulation ducts in air-conditioning installations

The polyethylene foam is highly effective, technological hear and sound insulation material produced by Kintrade Ltd. , Plovdiv. The basis of polyethylene foam is a highly – pressure polyethylene(low density LPDE) – which gives flexibility, a highly resistance from aggressive building materials. It has closed cell structure, does not keep combustion, does not release harmful substances in conditions of fire, absolutely environmentally clean, safe material. It is produced as well in sheets uncoated, also unilateral masked with aluminum and polyethylene film (high density HPDE).

• Great thermal conductivity insulation λ = 0.038
• Excellent steam insulation
• Highly sound insulation
• Easy installation
• Long live (from 80 to 100 years) as it keeps its physical and chemical properties; the material does not rot, neither mould; has oil and gasoline resistance

What is important to know when we are doing a thermal insulation of walls

Every objects that needs thermal insulation, it is unique by its own. The best approach is to turn to professionals – designers, architectures or builders as they are well aware of polyethylene foam, knowing the advantages of it, and it is quite possible they to offer you to use polyethylene foam as a complex insulation. If you prefer by yourself to solve the issue with the choice of insulation material and its installation, then our recommendations will help to deal with the task your facing it. All solutions are developed for the climate in the temperate climate zone.

The absence of steam insulation leads to penetration of water vapor into the main elements of the walls and cause damages.

The humidity as a form of water vaport penetrates through the leaks (gaps) generate condensate.

You need to provide a ventilation for the construction of insulated walls, so there will not have accumulation of moisture.

How polyethylene foam should be applied on the walls? The walls can be insulated with foamed polyethylene both inside and outside. For outside installation should be used perforated polyethylene foam, which is more thematically and sound insulator, protects the building from atmospheric precipitations and provides the output from the construction. The use of the foamed polyethylene inside is having the functions of thermal, sound and steam insulator. Most often the foamed polyethylene is used to do an inside insulation as he is having more economical impact, using it helps the thermal inertia to be significally reduced, there is no possibility of generating a condensate, the laying works carried out round the clock, etc. According to regulatory requirements for putting a thermal insulation on the walls, it should be used a one-sided foamed polyethylene, with the size 3 – 4 mm, combined with massive insulation, for example, rock-wool or plastic foam. The thickness of the massive insulation depends on the walls thickness and material. If the walls material has low coefficient of thermal conductivity, for example if it is from hollow bricks or cellular concrete etc., then a it is not necessary to do a massive insulation. The same approach is applying when it is doing repairmen of apartments – if the walls are very cold, it is enough just to put foamed polyethylene. The lightweight buildings, that are used only when it is warm outside, also do not need a massive insulation – it is enough again just to put a foamed polyethylene. Here are few examples.

Residental building with brickwork walls with a thickness of 1.5 brick (380 mm), outside – with liner bricks. The task is: to put thermal insulation materials inside the inner lining with plasterboard, with following painting. The thermal resistance of the outside walls should not be less than 3.0 m² * ° C / W (temperate climate zone). The brickwork and plasterboard together create thermal resistance, for example 0.8 m² * ° C / W. But in that way we have a lack of thermal resistance of 2.2 m² * ° C / W – the exact value which we should have with thermal insulation. If we do not use foamed polyethylene, then we can provide a resistance to heat transfer, by one layer of plastic foam or rock-wool with a thickness of 100-150 mm depends on the exact type of it, but in this case the team insulation is obliged. To put such massive insulation with such kind of a thickness is not really reasonable from an economic point of view. The same qualities has the foamed polyethylene with size 4 mm + 50 mm rock-wool. Usually the foamed polyethylene should be applied between the massive thermal insulation and the plasterboard, as it is playing the role of steam insulation. The air cavity between the plasterboard and foamed polyethylene should be 20 mm. If we are using unilateral masked with foamed polyethylene film, the film should directed inwardly towards the room. In case, the building is operating not the whole year, but just, for example from early spring to late autumn, the thickness od the massive insulation can be reduced or we can abandon it at all and just put thicker polyethylene foam. The foamed polyethylene should be applied between the outer paneling of the building and the massive insulation. The air cavity in front the outer panel should be vented. The air cavity between the foamed polyethylene and massive insulation – should not be vented, but it should has a thickness of 20 mm. In this situation there is no need of steam insulation inside the room.

Residental building, walls – made from foam concrete blocks 300, outside – siding. In that residental building, rooms are cold, although the huge energy which is spent on heating. Task: To put thermal insulating materials inside the building; inner lining with plasterboard with following wallpapering. Thermal resistance of the outer walls should not be less than 3.0 m² * ° C / W (temperate climate zone).Foam concecrete blocks and plasterboard create a thermal resistance of 1.9 m² * ° C / W. But unfortunately here we are facing a lack thermal resistance of 1.3 m² * ° C / W. Without the foamed polyethylene, such resistance value of heat transfer provides a layer of polystyrene or rock-wool with a thickness about 60 mm, as in that case the thermal insulation is obliged. The same qualities has the foamed polyethylene with size 5 mm. The foamed polyethylene has the same functions of thermal and steam insulators. The air cavity between the foamed polyethylene and plasterboards should be 20 mm. Using sided laminated with aluminium polyethylene foam film should be turn inside the room. If in that case the building is not use all the winter, but just time to time, then the thickness of the foamed polyethylene can be reduced.

To already built villa, you decide make a terrace. The house is using sometimes during the winter, but terrace only during the summer and between seasons. The annexe to the main building is skeletal. In this situation there is no need to make thermal insulation. It is necessary to prevent skeletal walls, which can be blown by cold winds and to completely exclude the possibility of condensation, even when winter had this room to be well warmed. The laying of the massive thermal insulation required to put additional material – to make steam insulation inside and secure a protection from winds outside. By fitting foamed polyethylene as the main insulation there is no need for additional materials. Used foamed polyethylene with a thickness from 3 mm to 5 mm – one or two layers, depends on when the owner of the villa starts the season or starts using it more often. In all cases the application of foamed polyethylene is necessary to be sealed with an aluminum adhesive tape. How to insulated balcony? Before all, we need to be sure for what we are going to use the balcony and what the temerature range should be. If the balcony is not with thermal insulation, but only glazing then the difference in temperatures will be no more than 10 ° C. If a temperature not lower than 0 ° C suits us, then it is enough just to put foamed polyethylene with a thickness of 4-8 mm. The most difficult situation is when the balcony is part of an apartment. In this situation, we need to make insulation accordant to statutory requirements, which are brought to the living room. Only in this case we can speak for comfortable conditions of using the resulting area and to ensure that problems with cold or damp walls will not be. The thing is, if you do not use repellent insulation must put an insulation with bigger thickness – from 50-100 mm. The thermal insulation it is obliged. But first of all, that is expensive, secondly – as we add the inner lining is obtained that the thickness of the structure increased by 70-120 mm, which reduces the area of the room. Therefore, people often refuse to renovate the balconies. What can be done in that case? The answer is simple – we can use foamed polyethylene – with it there is no need of thermal insulation. Moreover, using foamed polyethylene 4 mm plain massive insulation can increase i the thickness of the structure with 80-100 mm, and in that way it will cost a way cheaper. In the appartment it is cold, the walls which are facing the streets are colder as some of the angles are even damp. These are the most common examples which we are facing nowadays. We can see there is moisture on the walls, which are not so goog thermally insulated. Usually the thermal insulation does not help. Using steam-penetrating materials, for example expanded polysterene, can help the moisture not to be visible on our wallpapers, but anyway it will continue to form as a condensation on the cold surfaces – between the bearing wall and the foam. The experience is showing that this situation can be solved very easily by the applying of a single thin unilateral masked with aluminum foamed polyethylene film with a thickness of 3 mm. It is playing the role for both thermal and steam insulation. Using foam polyethylene, we do not conceal moisture, but simply create conditions it does not condense. On that topic we will answer another common question: on polyethylene foam wallpaper must not be stick! That is not true. The insulation values of each material depends on its density – the smaller it is, the better is. When we are sticking wallpapers, we need to use a though material. When we have thermal insulation our walls, we can not put wallpapers. When we are using foamed polythyelene, the scheme is the following: it is applied to the wall, then put plating thickness 20 mm, then can now be installed all facing materials – cladding, trim, drywall.

What if you can not to do repairs? There is a solution too. First to understand that important measures have already taken – on the windows are placed seals. Insufficiently insulated walls, respectively, excessive heat losses room temperature and power (efficiency) radiator – these are all elements of a chain. In order to increase the temperature, it is necessary either to insulate the walls, or to increase the efficiency of the radiators. But if the temperature in the room in winter drops below + 15 ° C or walls are wet and even freeze, then we should do a thermal insulation, which means repair. To increase the room temperature by at least 2-4 ° C, we just need to put foam polyethylene behind the radiator. For this purpose, using unilateral masked with aluminum foamed polyethylene film with a thickness of 3 to 5 mm. The material should be sticked to the wall behind the radiator , in order not to be visible. The theory, as well the experience too, is showing that in this case the heat from radiator rise with 20%. In other words, ordinary radiator with a power of 5 kW effect will be the same if alongside him we put oil radiator with electric power 1 kW. For those who have a well-insulated houses outside the city, this effect means a lot. Just stop radiators to heat the wall under the window and heating system consumes less energy, the room temperature remains the same. This allows saving gas or electricity.