Expanded polystyrene is considered one of the most popular insulation materials. It is used for insulation of building facades. Material is produced in the form of plates having various thicknesses.
When purchasing a heater, it is recommended to immediately buy glue. Using this mixture, panels are mounted on the facade.
Glue for extruded polystyrene foam is made on the basis of high-quality Portland cement. Modifying additives and quartz fillers are added to it. Glue for expanded polystyrene is convenient and safe to use. The solution is characterized by high adhesive properties to organic and mineral bases. The mixture helps to reliably fix the insulation on the facade. After hardening, the solution becomes vapor-tight, waterproof and resistant to temperature changes.
Before installing the insulation, it is necessary to prepare the base. The surface is cleaned of dirt, dust, traces of paint, stains of grease or oil and other substances that contribute to the reduction of adhesion.
Glue for polystyrene foam must be applied to a dry and strong base. It is recommended that before installation, repair the foundation defects (cracks, bumps) with the repair mixture.
Before applying to the dry mixture, water of room temperature is added and mixed with a nozzle drill. Water is taken at the rate of 0.18 liters per kilogram of dry mix. The result should be a solution of a homogeneous consistency. After the mixture is left for five minutes, then stirred again. Ready-made adhesive for expanded polystyrene can be used within two hours. The material consumption is five and a half kilograms per square meter.
Expanded polystyrene boards can be mounted on the facade in several ways. The beacon method is used in cases where, on the basis of there are irregularities up to a centimeter. In such situations, the adhesive composition is applied in the form of beacons, which are distributed evenly over the surface. The strip method of application is used when mounting plates on a surface having roughnesses of up to 0.5 cm. In this case, the adhesive for expanded polystyrene is applied around the entire perimeter of the insulation plate and in its center. Strips are applied around the perimeter with gaps. This prevents air congestion during installation.
When using these two methods of applying the adhesive mixture, surface irregularities are compensated. In this case, the solution should cover sixty percent of the surface of the expanded polystyrene plate.
There is also a continuous method of applying the solution to the insulation material. This method is used in the presence of irregularities on the basis of up to three millimeters. In this case, the mixture is applied to the plates evenly over the entire surface using a notched trowel.
Installation of plates is carried out immediately after applying glue to them. For better adhesion of the solution to the base, the insulation is pressed to the surface. Expanded polystyrene plates are mounted one to the other in the same plane. The width of the seam should not exceed two millimeters.