Balconies Waterproofing

One of the most common water damage problems in commercial and residential buildings come from Balconies. The following information is designed for practical advice in three situations:

   

NEW CONSTRUCTION

Building codes can vary by State as waterproofing applies to concrete slabs or wood frame structures. A basic principle with new construction buildings is to view the job with the perspective that building movement will occur and therefore to secure all wall/floor joints, drains, balustrade, water exit points, hobs, sheet joints and movement joints. We recommend liquid applied membrane systems for the Australian climate as the most practical and economic products for a secure job.

Key Products:

• Sikaflex PRO – polyurethane
• Polycloth – reinforcing fabric
• Fibreglass Matting
• MICROL – Heavy Duty Waterproofing Membrane
• MICRAFLEX – External Waterproofing Membrane
• Sikalastic-1K-pds
• Sikalastic – 488 – Polyurethane Waterproofing Membrane
• Sikalastic 560 – Water based Polyurethane Waterproofing Membrane

Reference information:

Waterproofing Balconies.pdf

Diagrams care of MBA NSW

REPAIR GLAZED TILES

Residential balconies which have glazed tiles installed and have a waterproofing failure, there are two primary remedies. The first, is to pull up the tiles and screed to address weakness in the base structure, then restart the waterproofing process. The second, is to assume the structure is sound, utilising the existing tiles, waterproof over the top of the tiles. As with all balcony repair jobs, particular attention is required in protecting wall/floor joints, drains, balustrade, water exit points, hobs, sheet joints and movement joints. Decorative options include painting over the waterproofing with Decracoat and walls with Classique Low Sheen to a colour of choice.

Key Products:

• Sikaflex PRO – polyurethane
• Polycloth – reinforcing fabric
• Fibreglass Matting
• MICROL – Heavy Duty Waterproofing Membrane
• MICRAFLEX – External Waterproofing Membrane
• Sikalastic – 488 – Polyurethane Waterproofing Membrane
• Sikalastic 560 – Water based Polyurethane Waterproofing Membrane

Reference information:

Waterproofing Balconies.pdf
Repairing a Residential Leaking Balcony.pdf

REPAIR CONCRETE

Concrete slabs and pavers often experience problems after building movement. Damaged or deeply broken concrete needs to be repaired prior to waterproofing. Whilst it is possible to treat the concrete with a transparent treatment to maintain the same look, from a waterproofing perspective a more durable result will be achieved using a membrane system with a trafficable reinforcing material.

Decorative options include painting over the waterproofing with Decracoat and walls with Classique Low Sheen to a colour of choice.

Key Products:

• Sikadur 31 – epoxy repair
• Sikaflex PRO – polyurethane
• Polycloth – reinforcing fabric
• Fibreglass Matting
• MICROL – Heavy Duty Waterproofing Membrane
• Sikalastic – 488 – Polyurethane Waterproofing Membrane
• Sikalastic 560 – Water based Polyurethane Waterproofing Membrane

Reference information:

Waterproofing Balconies.pdf

Youtube video – Bond Breaker System- Class II Membranes