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Terrace waterproofing with PVC — Green Coast Villas
Terrace waterproofing with PVC

Terrace waterproofing with PVC

Verandas waterproofed with a dual Mapethene + Mapelastic system and a green roof in Mapeplan B PVC at Green Coast Villas, with materials supplied and site work supervised by SARP.

System
Dual Mapethene + Mapelastic system on the verandas; Mapeplan B PVC on the green roof
Work
Terrace and green roof waterproofing
Client
Kron Construction
Our role
Supply of materials and site supervision

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About the project

At Green Coast Villas the verandas and the green roof were waterproofed with two different systems, each chosen for the load it has to carry. SARP supplied the materials and supervised the installation with Kron Construction.

The verandas sit over living space, so they were given a dual system: a self-adhesive membrane bonded to the slab below the screed, and a flexible cementitious membrane on top of the screed directly under the tiles. If water ever passes one layer, the second one stops it. The green roof carries soil, plants and constant moisture, so it was covered with a root-resistant PVC membrane, with welded details at every edge and outlet.

System applied

Verandas: dual system. Below, the slab was primed with Mapethene Primer and covered with the self-adhesive Mapethene HT AP membrane. Above, the screed was primed with Primer 3296 and waterproofed with Mapelastic flexible cementitious membrane reinforced with Mapenet 150 glass-fibre mesh, ready for tiling.

Green roof. The roof was waterproofed with Mapeplan B, a PVC membrane resistant to roots. Upstands and edges were formed with Mapeplan Lamiera (membrane-laminated metal sheet) and the water is taken off through the parapet with rectangular Mapeplan Bocchetta outlets. Polydren PL and Polyfond Kit protect the membrane and drain the water under the growing layer.

Products used

Mapeplan BSynthetic MembranesMapeplan BRoot-resistant PVC membrane that waterproofs the green roof.View product line →Mapeplan LamieraSynthetic MembranesMapeplan LamieraMembrane-laminated metal sheet for the upstands and edges.View product line →Mapeplan BocchettaSynthetic MembranesMapeplan BocchettaRectangular outlet draining the roof through the parapet.View product line →Polydren PLSynthetic MembranesPolydren PLProtection and drainage layer over the membrane.View product line →Polyfond KitSynthetic MembranesPolyfond KitHDPE studded sheet that protects the membrane and drains water.View product line →Mapethene PrimerFully Bonded MembranesMapethene PrimerPrimer for the self-adhesive membrane on the veranda slabs.View product line →Mapethene HT APFully Bonded MembranesMapethene HT APSelf-adhesive membrane forming the lower layer of the veranda system.View product line →Primer 3296PrimersPrimer 3296Acrylic primer that consolidates the screed before waterproofing.View product line →MapelasticWaterproofing Balconies & TerracesMapelasticFlexible cementitious membrane forming the upper layer under the tiles.View product line →Mapenet 150Waterproofing Balconies & TerracesMapenet 150Glass-fibre mesh reinforcing the Mapelastic layer.View product line →
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