Waterproofing
Underground Parking Deck Waterproofing
Seamless polyurea membrane installed over a leaking below-grade parking structure to protect the levels below.
The Challenge
Water was migrating through the top deck and dripping onto parked vehicles two levels below. Cold joints and cracks made traditional sheet membranes impractical.
Our Solution
After diamond-grinding and detailing every crack and drain, we applied a fully-bonded, crack-bridging polyurea deck membrane with a broadcast quartz wear course and UV-stable topcoat for traffic.
A failing roof doesn’t always need a costly tear-off. Our spray-applied roof coating and foam
systems restore the roof you already have — sealing every seam, fastener, and penetration into one
waterproof, reflective membrane.
Spray polyurethane foam (SPF) adds R-value and slope for drainage, while a silicone or polyurea
topcoat reflects the sun, lowers cooling costs, and shrugs off ponding water. The result is a
renewable roof that can be re-coated instead of replaced.
We work on flat and low-slope commercial roofs, metal buildings, and residential structures — all
without the mess, disruption, and landfill waste of a full replacement.
Project Timeline
01
Site Assessment
Inspection, measurements and
moisture/adhesion testing to define scope.
02
Surface Preparation
Cleaning, grinding or blasting plus detailing of
cracks, seams and penetrations.
03
Coating Application
Spray-applied system installed to spec thickness
by certified applicators.
04
Inspection & Handover
Quality checks, final walkthrough and warranty
documentation.
Results
Stopped all water intrusion to lower levels
Traffic-rated wearing surface with slip resistance
Deck reopened to vehicles within 48 hours
Bridged existing structural cracks
Project at a Glance
Location
Minneapolis, MN
Completed
2024
Category
Waterproofing
Membrane
Vehicular polyurea
Scope of Work
- Detailed on-site inspection and written condition report
- Protection of surrounding areas, equipment and finishes
- Full surface preparation and repair of defects
- Installation of Reinforced silicone
- Detailing of edges, joints, drains and penetrations
- Thickness checks, final inspection and site clean-up
Before & After
Why This System Was Chosen
Seamless protection
No seams or joints for water
or chemicals to get through.
Fast return to service
Rapid cure times keep
downtime to a minimum.
Long-term value
Durable, warrantied finish that
outlasts traditional options.
The crew was professional, on schedule and left the site spotless. The finished
roof coatings work exceeded our expectations.
— Client, Twin Cities, MN
Project Specs
Area
60,000 sq ft
System
Reinforced silicone
Duration
9 days
Warranty
15 years
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