Insulation – Waterproofing of balconies

Waterproofing and insulating balconies is necessary to prevent water from seeping into the floors below and the interior flooring. Waterproofing under the tiles is very important for good moisture insulation in homes. This ensures moisture insulation and avoids the need for subsequent waterproofing, which can lead to the removal and replacement of tiles. For waterproofing above the concrete slab, cement mortar is applied at an angle. The cement mortar can be made either with ready-made products or with traditional cement mortar reinforced with building resin. The joint between the floor and the parapet is either sealed with adhesive tape (used for joining materials where permanent connections require flexibility and resistance to moisture and aging) or smoothed with repair mortar.

 

After the cement mortar has dried, apply elastic cementitious mortar with a brush or roller.

 

The application is done in two layers with intermediate placement of glass fiber mesh.

 

1. First, apply the first layer and, while it is still wet, embed the glass fiber mesh.

 

2. After 4-5 hours, apply the second coat to completely cover the glass fiber mesh.

 

3. Next, lay the tiles using improved adhesive.

 

4. The grouting is done with improved elastic grout, which has water-repellent and anti-fungal properties.

 

5. The sealing of construction joints (floor-to-railing joints) and expansion joints (joints are recommended every 25-40m2 depending on the size of the balcony) is done with polyethylene cord, silicone, or polyurethane mastic.