What is the uncultivated extruded polystyrene? Tips for the assembly of experts

Most of the time, when it comes to the house, you want to choose the best products they deserve and, of course, guarantee comfort. Isolation is an important step in the construction phases, for hot houses and low maintenance costs.

As insulating materials, today, the market for building materials has a wide range of products, for multiple applications, inside or outside. From the construction of the foundations of the house, the insulating materials can be mounted, going further with the insulation of the facade, roof, bridge and attic. For these works, materials, such as: mineral or basaltic mineral wool, expanded or extruded polystyrene plates, bituminous membranes, membrane made of high density polyethylene, various waterproofing pasta and others.

In this article we have chosen to talk about extruded polystyrene, so read to find out what we can attack the extruded polystyrene and useful assembly tips.

Extruse polystyrene is an insulating and waterproof material, in the form of plates, with a dense structure and closed pores.

Extruse polystyrene is an inspired choice, an economic solution, with excellent results, which offers energy efficiency and humidity protection. We also find various decorative profiles of polystyrene extruded for the design of the interiors or for the creation of window sills or external plates for the insulation under the laminate parquet.

Types of adhesives for extruded polystyrene

Being used to reduce heat losses, extruded polystyrene will then be used, such as: for example:

• Esolation at the level of the floors and in particular the insulation at the level of the floor above the upper floor;
• Insulators at the level of foundations;
• Isolation of the basement and basement;
• basic insulation;
• roof insulation.

Now we all know what is the extruded polystyrene and what is used, but what do we know about the adhesive for polystyrene? What do we glue the extruded polystyrene?

You probably heard of the term adhesive and meal for the polystyrene or polyurethane sticker. Well, these stickers are used to glue these plates of extruded polystyrene.

The polyurethane sticker

The foam -type polyurethane sticker is a simple and useful solution, a useful product in any construction project. Polyurethane foam is presented in the tube, with manual application or with the special foam gun, very easy to manage.

It is important to know that the polyurethane foam is of different types, so you will have to be careful what you choose.

Depending on the purpose of the use we have:

• Polyurethane foam for assembly– used for assembly windows or doors frames;
• Polyurethane foam for isolation – intended for isolation under construction, with windows, walls, roof;
• Polyurethane foam for filling – used to fill the large joints, the cracks in the structure of the construction, the spaces existing between walls, frames and doors, filling the necklaces to the tubes, the holes in the walls and on the ceilings;
• Universal foam – used for various applications: assembly and doors, sealing open spaces, filling the empty spaces near the pipes, fixing the SA insulating panels

Depending on the place of use we have:

• Internal polyurethane foam – To fill the walls, the ceiling;
• The external polyurethane foam – for example used for the thermal insulation of the roof and the terrace;
• Universal polyurethane foam – used for various applications, regardless of the place of application.

To glue the plates of extruded polystyrene you will have to choose a polyurethane sticker suitable for the place where you will monise (internal/outside) and with a small expansion capacity. It will not be difficult to find out what it is, because most brands (bisonti, ceresit, den Braven, Soudal, etc.) has the mention: «polystyrene» on the foam tube.

As a rule, this type of adhesive is suitable for both extruded polystitis and expanded polystyrene. Some types are also suitable for basalt mineral wool.

The foam -type polyurethane sticker can be used on surfaces such as: wood, osb cards, glass, metal, cement and bituminous surfaces. It also adheres to the surfaces of the plaster, if they have previously been moistened.

Sticker and space mass

In shops and deposits of building materials you will find various types of polystyrene stickers. Most of the time, specialists use space -type adhesive for both types of polystyrene (EPS and Exp) and for basalt wool.

Some stickers suitable for gluing thermal insulation plates in polystyrene also make the protective layer strengthened with fiberglass network and are used for internal and external applications.

It is recommended that the support layer is clean, dry and stable, without friable parts or impurities that can reduce adhesion.

It is applied on all conventional, concrete, light concrete, porous cement, cement plaster, lime cement plaster, old plaster and directly on any type of masonry. It is recommended for the thermal insulation of newly built and old buildings, which will be thermally rehabilitated.

Tips for assembly of the extruded polystyrene

The assembly technique of extruded polystyrene is a very simple technique if some rules are followed, whether we apply it inside or outside. If you apply the extruded polystyrene on the facade of the house, on the whole surface or only for the insulation of the base, you will have to choose the thickness of the plates for efficiency.

Most of the time, the extruded polystyrene is chosen for: isolation of foundations, sockets, isolation of the walls of the basement, isolation of the roof, due to the greater resistance to the action of external and impact forces (mechanical shocks, intense traffic, aggressive weather conditions) and because it does not allow the passage of water vapor.

Here are some suggestions for a correct group of extruded polystyrene plates:

Be careful that the work surface is clean

Before starting the plating itself, you should consider cleaning the substrate, regardless of its nature. You will have to clean the dust or other impurities that could influence the adhesion of the isolation.

Check that there are no cracks, bumps, pieces of old paints on walls, signs of humidity, fat and if there are these problems, solve them before mounting the extruded polystyrene.

Specialists recommend applying a primer, if work support is very absorbent: light concrete, BCA, bricks, chalk card. This primer also called primer will be reduced by the degree of surface absorption.

Apply sufficient adhesive

Although most crafts generally apply the sticker to points, the specialists recommend applying the upper adhesive of the space on the entire surface of the polystyrene plate. In this way you will increase the adhesion to the substrate and give greater power to support the plates.

Especially if the support surface is flat, it is recommended to apply the sticker on the entire stroke of the plate for greater efficiency. It is known as a continuous bed method.

If we glue the extruded polystyrene with polyurethane adhesive in a professional way, you will have to use a professional gun and take into account the degree of expansion of this adhesive, therefore it does not apply much.

The manufacturers and crafts recommend when they glue the extruded polystyrene plates to apply polyurethane foam, at a distance of 5 cm from the edge, then in stripes subsequent to 30 cm away.

Do not apply adhesive on the song of the extruded polystyrene plates

It is important to know that it is not necessary to extend the polyurethane sticker or the type of space and on the tiles, otherwise you will create thermal bridges that reduce the performance of the thermosystem. This is considered by experts an installation error.

Do not use sticker for tiles and tiles

Many times we are tempted to use remaining materials of other works to save money, but this is not recommended at any time and in any case. You cannot discard the quality of the bone if you want your work to be efficient and resistance over time.

Each sticker should be used for the purpose for which it was created, being compatible with some surfaces to establish a good contact for a long time. The advice of experts is not to use the adhesive for tiles and tiles in case of gluing the extruded polystyrene, which is cheaper, but which is not compatible with it.

Opt for further mechanical fixation

After the extruded polystyrene, it was glued OPT for further mechanical fixation with the help of special polystyrene pieces.

For the time resistance of the isolation system with extruded polystyrene, you will have to pay attention to the choice of polystyrene pieces. Choose the length and diameter of the pieces based on the type of material from which the wall is made: normal cement, full brick, bricks with holes, light cement and others. It is recommended that the diameter of the pieces is between 8-10 mm. The greatest diameter means a more resistant socket.

Remember that the diameter of the piece is the same as that of the used drill!

Usually, a minimum of 6 dowels per square meter are needed, but each project is unique.

CONCLUSION

Extruse polystyrene is used for thermal insulation in the areas at risk of water infiltration and thermal insulation of thermal bridges due to the high mechanical resistance and its waterproof quality, but for efficient work it is necessary to pay attention to the elected stickers of polystyrene. If you have chosen the right extruded polystyrene, with the optimal thickness and density of the project, do not discard the quality of the adhesive!

Remember that not all adhesive correspondences have extruded the polystyrene and take into account the opinions of professionals in the field of construction in the correct application of the stickers. Their recommendation is to use polystyan polystyrene stickers with small expansion or specifically designed expansion stickers to glue the extruded polystyrene or for all types of polystyrene.

We are waiting for you in the stores and deposits of the new lime or on the site, where you can find a wide range of extruded polystyrene, as well as the necessary stickers. And if you don’t know what to choose, our sales consultants can help you make the right choice of your project.