Strata Waterproofing & Concrete Restoration in North Vancouver

North Vancouver's geography leads to orographic or mountain-influenced rainfall, resulting in annual precipitation levels that are often 40% to 50% higher than those recorded at Vancouver Airport. This constant moisture load means building envelopes remain saturated for long periods during the winter. This prolonged exposure accelerates the breakdown of window sealants and balcony membranes, allowing water ingress to occur at the slightest joint split. Regular facade inspections are helpful to detect cracks before moisture penetrates the structural sheathing. Strata properties built near the base of the mountains must schedule inspection and washing cycles regularly to prevent decay. We coordinate closely with engineers to ensure structural assessments are backed by detailed data.

We apply low-pressure biocide washes that kill organic spores at the root without damaging the stucco substrate. High-pressure washing can force water behind the cladding, causing dry rot in the wood frame. Our biocide solutions are biodegradable and safe for nearby landscaping, leaving a protective residue that prevents organic regrowth for up to two years. This process preserves the facade's appearance and prevents premature coating failure. Facades are carefully pre-rinsed and post-rinsed by our technicians to protect residential plants and garden features. Biocide treatments are a primary part of regular facade preservation in humid regions.

When performing overhead work that risks dropping items onto public property, we must secure street use permits. Depending on the location, we apply for either a <a href="https://www.cnv.org/City-Services/Streets-and-Transportation/Street-Use-Permits" target="_blank">City of North Vancouver street use permit</a> or a <a href="https://www.dnv.org/property-development/apply-street-permit" target="_blank">District of North Vancouver street permit</a>. We manage the entire application, providing certified traffic control plans and pedestrian protection. This ensures compliance with local municipal safety bylaws. Our supervisors coordinate with municipal inspectors to secure lane blockages during scheduled off-peak working hours. Our permitting team manages all filings with local municipal engineering departments directly.

Concrete is a porous material that absorbs water. During winter, when temperatures drop below freezing on the slopes of the North Shore, this absorbed water expands by approximately 9% in volume. This internal pressure causes the concrete to crack and flake (spalling). We apply breathable concrete sealers that prevent water absorption while allowing internal moisture to escape, protecting the balcony slab from freeze-thaw damage. This maintenance prevents progressive deterioration of the reinforcing steel. Our technicians apply these sealers after concrete repairs are completed. Strata councils should schedule concrete reviews before winter freezing cycles begin.

For wood-frame residential strata buildings, we recommend installing 60-mil PVC sheet vinyl membranes. These membranes are heat-welded at the seams and turned up the wall behind the rainscreen to create a continuous watertight pan. PVC vinyl is highly durable, resists puncture, and acts as both the waterproofing layer and the walking deck surface, making it ideal for the wet North Shore climate. Our technicians inspect the perimeter flashing to ensure water is shed effectively. We seal all perimeter seams to prevent moisture from bypassing the membrane barriers. We provide detailed cross-sectional drawings of membrane transitions for strata records.

Under WorkSafeBC Part 11 fall protection standards, all roof anchor systems must undergo a visual inspection by a qualified person at least once per year. In addition, they must undergo structural testing periodically, typically every five years, or after any modification. We verify that the building's anchor certification is active before our rope access technicians begin rigging, maintaining compliance with safety standards. A documented anchor logbook must be present on site. If the anchors are not certified, we can assist strata councils by coordinating engineering reviews. Technicians use double-tethered setups that meet or exceed all fall protection standards.

Concrete spalling occurs when water penetrates concrete and reaches the reinforcing steel rebar. As the steel rusts, it expands up to ten times its original volume, cracking the concrete. We scale the facade using rope access, chip away the loose concrete, clean the rusted steel to bare metal, apply a protective zinc-rich rust inhibitor, and patch the area with a high-strength polymer-modified mortar. Once cured, the concrete patch is sealed with a protective elastomeric coating. Our crews execute these repairs according to precise building engineering guidelines. Our patching mortars are mixed to match the load-bearing requirements of structural columns.

Window caulking typically lasts 15 to 20 years before UV exposure and thermal shifting cause it to crack and split. If replacement is delayed, water ingress can cause structural decay. Strata councils must include sealant replacement in their depreciation reports under the Strata Property Act to allocate funds, preventing emergency levies and protecting the building's envelope assets. Planned replacement is a cost-effective alternative to structural envelope remediation. This long-term planning maintains strata values and protects owners. Preventative replacement is the most cost-effective way to preserve the structural building sheathing.

Yes. Our rope access technicians are in a prime position to inspect the building envelope up close. While performing window washing sweeps, we inspect the condition of window perimeters, expansion joints, and concrete balconies. We compile our findings into a digital report with photographs, allowing property managers to address minor defects before they become major leaks. This structural review helps strata councils plan their annual maintenance budgets. The inspection covers flashing laps and concrete cracks. Photographic logs are archived for building managers to reference during future audits.

Rigging on buildings built on slopes requires careful planning to manage variable wind loads and anchor layouts. Our SPRAT/IRATA certified safety supervisors complete a daily hazard assessment and check all rigging. Technicians operate on two independent lines—a primary working line and a safety backup line. We also establish clear ground exclusion zones to protect pedestrian walkways below. We coordinate our drop schedules to avoid peak resident traffic hours. All rigging is checked before any descents are approved. We coordinate wind speed monitoring on the slopes to ensure safety compliance during shifts.