The most luxurious marina on the Adriatic has decided to anchor in beautiful natural surroundings where the cliffs of the Montenegrin mountains rise from the peaceful sea and protect one of the nicest coves in the world. The elite Porto Montenegro complex, withdrawn into Tivat Cove, is a must destination in yachting programs, while a must in waterproofing programs are the DRACO professionals.
How we overcame the challenge
No one is that rich as to spend money on bad solutions, and this was the motto that led the investors in the new phase of the Regent Hotel, at the Porto Montenegro marina, when they hired the company DRACO to design their waterproofing systems. DRACO solutions were adopted for basically the entire project. Certain parts of the foundation slab lay in the sea, hence those sections were waterproofed using the special DRACO BENT 505 bentonite membrane along with polyethylene folios which provided additional physical protection and protect the membrane against water penetration. Applied to sections of the foundation slab not lying in the sea was the DRACO BENT 500 standard membrane. Both membranes are made from bentonite granules between two densely interwoven geotextile layers, and maintain waterproofing properties for hydrostatic pressures at 70 metres. Waterproofing of toilet amenities in the hotel relies on the DRACO LASTIC 150 coating combined with the DRACO BAND 100 sealing strip for horizontal-vertical joins. DRACO LASTIC 150 is a two-component polymer cement coating based on cement modified with an acrylic polymer emulsion which behaves well under construction works. Other surfaces which were waterproofed include plateaus, plant pots, terraces, balconies and roofs. Double waterproofing was selected for waterproofing the mentioned areas. Secondary waterproofing was performed at the level of the reinforced concrete slab whereas primary waterproofing was done on the sloping concrete. The secondary waterproofing required applying the DRACO LASTIC 100 single-component polymer cement coating, underwent full surface reinforcement with the DRACO BAND 220 reinforced canvas and with the DRACO BAND 100 sealing strip on the horizontal-vertical joins. Applied over the secondary waterproofing on the roofs was a vapor barrier made from the DRACO PLAN 405 aluminium folio onto which thermal insulation sheets made from XPS were placed. The chosen method of primary waterproofing was the superior DRACO GARD 500 polyurethane coating which is applied on sloping concrete and where the seal working joints were filled with DRACO FLEX 525 polyurethane sealant. DRACO GARD 500 is a liquid membrane which is UV stable, resistant against roots, as well as physical, chemical and thermal action. Prior to applying the coating, the concrete surface was treated with the DRACO PRIMO 520 epoxy primer, and the actual coating was strengthened with the DRACO BAND 210 reinforced canvas, thereby achieving waterproofing which is able to cope with subsequent cracks in the base. Due to the proximity of the sea and chlorinated pool water, applied to the polyurethane coating on the plateau around the pool was a layer of DRACO TOP 500 protective polyurethane coating (lacquer) pigmented with DRACO GARD 500. This kind of protected surface is used for decking or tiling and which required that the final layer of polyurethane be sprinkled with quartz for better adhesion of the glue. DRACO met the challenge within the agreed deadline and offered a complete waterproofing solution which completely fulfilled the investor’s high standards.