Waterproofing TERRACES and BALCONIES - ELASTIC JOINTS BETWEEN FLOOR AND WALL

While waterproofing a terrace with the "above screed" system, the existing expansion joint formed between wall and floor shall be carefully taken into consideration, since the screed is realized above a thermal insulation system and consequently becomes a "floating" screed, i.e. a suspended screed.

This joint is considered as well as the subthreshold and the drains a critical area in terms of waterproofing, therefore, we describe in more detail here below the right method for realizing this joint

  • Before installing the waterproofing layer, apply one priming coat of NORPHEN FONDO IGRO in the corner between the cement screed and the wall, treating approx. 8-10 cm of surface on the wall as well as on the substrate;
  • allow the solvent to evaporate (15-30 minutes) and then create a small cove (with a radius of approximately 2 cm) in the joint, using a small round tip trowel to adjust the the sealant;
  • after at least an hour and within 24 hours proceed with waterproofing using BETONGUIANA or any other expected product.

This joint shall be raised and sealed with low modulus sealants (NORDSIL 2.5) even after laying the tiles.

Related products

BETONGUAINA®.S » 
Highly elastic two-component liquid membrane European Technical Approval - ETA No. 006/0109

BETONGUAINA.S is an integrated water-based waterproofing system composed of: component A: aqueous dispersion of polymers and additives; component B: reactive fillers; After film formation, BETONGUAINA.S forms a …

BETONGUAINA® » 
Two-component liquid membrane

BETONGUAINA is an integrated water-based waterproofing system composed of: component A: aqueous dispersion of polymers and additives; component B: reactive fillers; After film formation, BETONGUAINA forms a …

NORPHEN FONDO IGRO » 
Mono Component Anchoring Base Coat

NORPHEN FONDO IGRO is a mono component product composed of a mixture of liquid pre-poly-isocianates and additives dissolved in solvent. The product, in the first hour after application, makes the anchoring …

 
Print as pdf