Balconies and terraces remain one of the most common waterproofing problems experienced in the building industry. Balconies require keen technical knowledge for its waterproofing. Balconies need to be waterproofed long before the window or sliding door manufacturer installs their product. A typical balcony would require an adequate step threshold from the inside of the living area onto the concrete balcony. Many problems with waterproofing a balcony are a result of a concrete deck cast without a sufficient step to the outside.

Things to Consider when Waterproofing a Balcony

Aadequate falls are critical to ensure that the balcony has sufficient runoff to outlets, if proper falls are not in place water can pond in areas. Balconies depending on the substrate can be waterproofed with numerous waterproofing products. The preferred method still remains using a torch on membrane, which can either be applied to the concrete surface or the mortar screed surface. Each approach would require different waterproofing specifications.

Outlets are important for runoff and should be placed away from the building in the direction of the falls. Full-bore outlets remain a popular choice for dispensing water off balconies. Other outlets can be used e.g. a PVC outlet with a flange may be used through a parapet wall or into a down pipe. Because of the variable movement experienced on balconies movement joints in mortar screeds will go a long way in controlling movement on a balcony.

Part of the balcony is the up-stand or in other cases the balustrade. Special care must be taken when waterproofing around up-stands and balustrades. Many waterproofing problems are associated with water ingress at these junctions. Anker Projects have completed many waterproofing projects that required specialist waterproofing of balconies and terraces. Our history in waterproofing of new and refurbished balconies equips us to provide you with a long lasting waterproofing solution.