Often suitable for
- Complex details and penetrations
- Compatible concrete, masonry, or roof substrates
- Restoration where investigation supports coating
Liquid Membrane
Liquid-Applied Waterproofing
Seamless reinforced membranes for complex geometry and compatible substrates.
Liquid-applied systems can form continuous waterproofing around difficult details, but performance depends on substrate preparation, primer, reinforcement, wet and dry film thickness, cure conditions, and protected terminations.
Not a shortcut for
- Wet, contaminated, moving, or unsound substrates
- Drainage or structural failures left uncorrected
Methods considered
- Primer and reinforced liquid membrane
- Detail coats at joints and penetrations
- UV or traffic-resistant topcoats
- Thickness and adhesion quality checks
Warning signs
- Blisters or delamination
- Cracks returning through coating
- Thin or missed areas
- Failed transitions and terminations
Choose your path
Liquid-Applied Waterproofing for homes and businesses
Start with the building and operating needs. Inspection findings—not a generic package—determine whether repair, restoration, or replacement belongs in the written scope.
Residential journey
- Complex decks and flashings
- Small low-slope areas
- Targeted seamless waterproofing
Commercial journey
- Equipment-dense roofs and podiums
- Phased restoration
- Detail-heavy waterproofing scopes
Suitability checks
- Product approval and substrate compatibility must be verified.
- Weather and dew-point conditions can control installation.
- Drainage, movement, and trapped moisture must be addressed first.
Transparent planning
What drives liquid-applied waterproofing cost?
These are scope drivers, not an online bid. Measurements, condition, code, access, selections, and hidden damage must be verified before WHI can provide a project-specific written estimate.
Cost drivers
- Cleaning, grinding, drying, repairs, and primer
- Reinforcement and specified membrane thickness
- Detail density and access
- Weather protection, testing, and warranty inspections
Typical project sequence
Duration is confirmed after scope, lead times, permits, weather, access, cure requirements, and hidden-condition allowances are known.
- Moisture, adhesion, and substrate checks
- Preparation and repair
- Primer, reinforced details, and field coats
- Cure, thickness/adhesion checks, protection, and closeout
Scheduling
Scheduling depends on investigation findings, drying or substrate moisture, weather and cure windows, access, permits, and coordination with drainage, concrete, roofing, or interior trades. WHI separates emergency source control from permanent waterproofing.
Maintenance
- Use compatible repair materials.
- Inspect high-traffic and transition areas.
- Protect the membrane from unplanned equipment or trade damage.
Prepare and protect
Emergency steps and estimate checklist
If water is entering now
- Keep people away from standing water near electrical equipment, unstable finishes, or contaminated water.
- If safe, stop the water source and move contents; do not open walls or enter flooded confined spaces.
- Photograph conditions, note weather and timing, and call emergency services for life-safety hazards.
- Request source control and temporary protection before cosmetic repairs or reconstruction.
Compare written scopes
- Identify the water source—not only the visible stain
- Record substrate condition and moisture findings
- Define preparation, transitions, drainage, terminations, and protection
- Confirm cure time, access restrictions, testing, and closeout
- Read warranty coverage, exclusions, maintenance, and installer requirements
Warranty questions
Ask who issues each warranty, what it covers, when it starts, how coverage statements are made, whether it transfers, and which maintenance, registration, or inspection conditions apply.
Get a condition-based recommendation
Tell WHI what you see and how the building is used. We will help set the next step, document the scope, and explain options without pretending an uninspected project has a fixed price.