Balcony waterproofing uses a variety of coatings and materials to create a protective moisture barrier for concrete. Our balcony waterproofing overview explains why these methods are an effective tool to prolong balcony longevity and improve safety.
Why is balcony waterproofing important?
Balcony waterproofing helps avoid the following risks:
- Structural failure: Water infiltration causes deterioration such as cracks, spalling, crumbling, and rust that lead to structural failure. Waterproofing prevents moisture from penetrating the concrete and the underlying layers, while helping reduce the risk of damage to adjoining structures.
- Property depreciation: Aging balconies lose their aesthetic appeal, impacting property value. Rusted out railings, cracked and crumbling concrete, and discolouration also deter tenants from signing a lease which can increase vacancy rates. Waterproofing maintains building aesthetics for increased property value and improved occupancy rates.
- Financial loss: By investing in a simple waterproofing process, you avoid ongoing repairs and the need for slab replacement. This proactive approach makes waterproofing far more cost effective in the long term.
- Negligence: Damaged balconies present a growing list of safety risks including slip and fall hazards, moisture related mould growth, loose railing hazards, and the risk of deteriorating materials falling on people below. Such negligence leaves building owners and property managers vulnerable to lawsuits.
What are common types of balcony water damage?
The freeze-thaw cycle, humidity and precipitation of Ontario’s climate creates issues for untreated concrete including:
- Delamination: Without protection, the top layer of the balcony separates from the slab causing crumbling and breakage.
- Cracking: Cracks caused by the freeze-thaw cycle open the concrete up to further moisture damage.
- Efflorescence: The appearance of a powdery substance on concrete is caused by salt deposits left behind by water infiltration.
As well, unprotected cement creates paths to the steel reinforcements below leading to rust and corrosion. When metal corrodes, the steel expands, contributing to delamination and cracking.
What types of waterproofing are available?
Treatments used to create an impermeable seal include:
- Liquid-applied membranes: Liquid membranes create a seamless layer of protection that effectively fills concrete pores and gaps. They are made from polymer-modified asphalts, acrylics, or polyurethanes which adhere directly to the substrate.
- Sheet based membranes: Pre-fabricated sheets are typically made of waterproof materials such as bituminous compounds, rubberized asphalts, or polyethylene. The expansive sheets are overlapped and sealed for a consistent layer of protection. These are common in waterproofing terraces and roofing.
- Crystalline admixtures: These substances are added to concrete mixes. They react with water, creating water-resistant crystalline structures that block moisture. This is a common practice in waterproofing building foundation.
- Epoxy: Epoxy creates a resinous waterproofing system that can be customized to create a unique aesthetic feature.
- Polyurethane coatings: Polyurethane coatings reduce the risk of cracking as they are very flexible and less prone to splitting.
How to choose the right balcony waterproofing method
Balcony waterproofing methods are chosen based on the following considerations:
- Existing foundational materials
- Current condition
- Foot traffic in the area
- Climate conditions such as temperature fluctuations, snow, rain, humidity, etc.
- Appearance
- Maintenance
What are the benefits of balcony waterproofing?
Balcony waterproofing offers several benefits including:
- Protecting building components against weakening structural integrity
- Prolonging longevity to avoid premature balcony reconstruction
- Improved aesthetics to increase property value
- Enhanced safety
- Increasing unit demand for tenants seeking outdoor space
- Helping reduce thermal barriers
- Reducing maintenance costs
Why professional installation is essential to balcony waterproofing
Waterproofing is a meticulous process that must be conducted using proper methods, materials and conditions. The professionals at WellDone Inc. understand the right application techniques, how to mix coatings and materials, and the right conditions for application. We also pay attention to every detail to ensure effective waterproofing in every corner and joint with special considerations for drainage points. Reach out to our team today.