Wall insulation with polystyrene foam

Insulating an apartment with expanded polystyrene is one of the common methods of insulating your home. What are the advantages of this type of insulation? And the advantage is that insulating an apartment with polystyrene foam is carried out indoors and every apartment owner can cope with this task. Another advantage of such insulation is the absence of hired high-altitude workers who charge a lot of money for their services.

Why use polystyrene foam?

Because polystyrene foam is much denser in structure than polystyrene foam. When hitting a wall, polystyrene foam will be more resistant to dents. Also, do not forget that in terms of heat conservation, the thickness of polystyrene foam is equal to the same two thicknesses of polystyrene foam. And for internal insulation it saves space. Therefore, insulating an apartment with polystyrene foam will be more appropriate.
If you decide to insulate your apartment with polystyrene foam yourself, then you can complete this task without any problems if you follow the tips and tricks listed below.

To insulate an apartment with polystyrene foam, you need to prepare the following tools and materials:

• - hammer drill with chisel and drill for 10;
  
• - electric drill with a mixer for mixing construction mixtures;
  
• - bucket, notched and flat spatula, hammer;
  
• - glue for polystyrene foam boards;
  
• - umbrellas or mushrooms for fastening polystyrene foam boards (fastening rod 10 mm);
  
• - polystyrene foam boards with a thickness of 20 mm;
  
• - mesh for plastering work;
  
• - putty.

Do-it-yourself wall insulation with polystyrene foam

First of all, you need to prepare the walls for insulation.

Remove the old wallpaper, and using a hammer drill and chisel, knock all the plaster down to the base of the wall. Carefully sweep construction debris from all corners, collect it and take it out. Then, according to the instructions, use a drill and mixer to mix the glue for polystyrene foam boards in a bucket. Apply this glue with a notched trowel to the polystyrene foam board and press it firmly against the wall.




Due to the teeth on the spatula, the glue is applied in strips, and at the moment of gluing, these strips are smeared into a solid ball of glue. Thus, the plate is glued tightly to the wall without excess glue. Then you need to fix the glued polystyrene foam board to the wall. To do this, use a hammer drill with a 10 mm drill. drill 5 holes in the wall directly through the polystyrene foam. The holes should be placed at the corners of the slab and one in the center.




Insert the umbrella into the drilled hole with the fastening rod facing forward and use a hammer to secure it in the wall with a plastic dowel. Tapping with a hammer, the umbrella needs to be sunk into the polystyrene foam flush with the stove. In this way, glue and secure all the polystyrene foam boards to the wall.


The insulation of the apartment with polystyrene foam is not yet completed.The next step is to prepare the walls for finishing. All joints of polystyrene foam boards and umbrellas must be plastered. You can use the same glue for this. Using a flat spatula, cover all cracks and depressions flush with the polystyrene foam boards.


Leave the walls in this state until the glue dries completely. Then stretch the plaster mesh over the entire area of ​​the wall. At the corners you can use a sickle mesh.




Place putty in a clean bucket using a drill and mixer. Using a flat spatula, apply the putty in an even layer over the entire wall area. Why is a clean bucket so important when mixing putty? If there are particles of debris or sand in the bucket, then when puttingtying they will interfere with applying the putty in an even layer, creating stripes and stains. It is advisable to putty the walls in two layers. After all layers of putty have completely dried, the insulation of the apartment with polystyrene foam is considered complete.