Waterproofing Membranes Built to Last in Oshawa Concrete Projects
Below-grade walls, plaza decks, wet rooms, and balconies all need waterproofing that stops water for decades. Ardex systems combine primer, membrane, and protection layers into one engineered assembly. We install as an Ardex-certified specialist, following the full protocol so the warranty holds and the concrete stays dry.
Waterproofing Succeeds When Every Layer Plays Its Role
A waterproofing membrane is not a standalone product. The primer bonds the membrane to the substrate. The membrane itself stops water penetration. The protection layer shields the membrane from backfill, foot traffic, or equipment during and after construction. Remove or compromise any one layer and the whole assembly fails.
Ardex designs each component to work with the others. The primer is matched to the substrate and membrane. The membrane thickness and application method are specified for the exposure. The protection layer is engineered for the loads and environment. We follow that protocol because that is what makes waterproofing reliable.
How Ardex Waterproofing Gets Installed Step by Step
Assess and specify
We evaluate the substrate condition, exposure (below-grade, wet, traffic, freeze-thaw), and protection requirements to select the right Ardex system from their range.
Prepare the surface
Concrete is cleaned, repaired with Ardex-compatible materials, and all joints, corners, and penetrations are prepped per the system specification.
Prime and membrane
The matched Ardex primer is applied to bond the substrate. The membrane (liquid-applied or sheet) is then installed to the engineered thickness with all details per spec.
Protect and document
The protection layer (drainage board, screed, or traffic surface) is installed over the cured membrane. Warranty documentation is prepared and handed off with the project.
The critical detail
Corners and Penetrations Are Where Waterproofing Proves Itself
Field membrane is rarely where waterproofing fails. The problem is almost always at a transition: the corner where wall meets floor, the pipe or conduit penetration, the joint between two concrete pours, the edge where the membrane meets a fixed object. Ardex provides engineered detail products for these transitions, and we install them per spec because that is where the system must hold.
If the substrate has cracks or spalls before waterproofing, we use Ardex repair systems to restore it first. For foundation waterproofing or basement protection, the Ardex membrane is part of a broader waterproofing strategy that may include drainage and sump systems.
System types, joint details, protection layers and warranty.
Multiple systems for different applications: below-grade liquid-applied, plaza-deck membrane, wet-room system, balcony waterproofing. We spec from the Ardex range based on the project's actual exposure and substrate.
Because that is where most waterproofing fails. The membrane field is rarely the problem; the corner or penetration is. Ardex provides engineered detail products for those transitions; using them per spec is what makes the system hold.
A physical layer (drainage board, screed, traffic surface) installed over the cured membrane to protect it from backfill, traffic, or service exposure. Without protection, even a perfectly installed membrane can be damaged in subsequent construction phases.
Yes, system warranty applies when installed to Ardex spec by an Ardex-system installer. We deliver the warranty documentation at handoff.
Depends on area and system. Below-grade wall waterproofing on a foundation might be a few days; a full plaza-deck system stretches longer. The full schedule is in the quote.
Below-grade waterproofing on a foundation upgrade. Full Ardex system, every detail to spec, two springs of melt with the basement bone dry. Warranty documentation in our file. Real install.
Z. V5
Property Owner, Oshawa
★★★★★
Plaza deck waterproofing system on a commercial roof terrace. Membrane, drainage board, traffic surface, every layer per Ardex spec. Inspector signed off cleanly, no leak issues since.
Y. V5
GC, Toronto
★★★★★
Wet-room waterproofing for our locker rooms. Every joint, every penetration detailed per spec. Three years of daily wet operation, zero failures. The detail work is what matters.
Q. V5
Facility Manager, Brampton
★★★★★
They walked through the joint detail before install so we understood why it cost what it cost. The system has held; the up-front spec discussion was worth it.
X. V5
Custom Home Builder, Mississauga
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Describe the waterproofing need (basement wall, plaza deck, wet room, balcony), the area size, and the project timeline. We will spec the Ardex system and send a written quote within one business day.
