Common problems
- Leakage or unclear moisture source
- Crackle, open seams and outdated details
- Pooling around drains
- High heat load under dark roof covering
- Needs renovation without complete demolition
WD-01 · WATERPROOFING PER BUILDING PARTPolyShield Waterproofing
Waterproofing for flat commercial roofs
From roof condition and business risk to a complete, controllable renovation structure.
Technical context
First recognize the building part and the load.
A commercial roof is not a loose surface. Roofing membranes, insulation, slope, upstands, installations and drains together form one water-retaining structure. PolyShield therefore first assesses the existing roof structure and only then chooses the system route.
Problem · cause · solution
From visible defect to substantiated system route.
Possible causes
- Aging and UV exposure
- Movement between roof surfaces and details
- Defective previous repairs
- Insufficient slope or blocked drain
- Moisture in insulation or loose roof layers
Complete system choice
Substrate, primer, details, membrane, protection and evidence are recorded as one project-specific structure.
View suitable systems ↓Business added value
What the right waterproofing protects or saves.
Extend lifespan
A suitable existing roof structure can often be systematically renovated without complete replacement.
Less business disruption
Cold-applied and fast-track routes limit open fire, logistics and execution time.
Limit heat load
A white system variant can reflect solar radiation more strongly and reduce the surface temperature.
System selection
Primarily promising, then technically confirmed.
The maps show a system direction. The final variant results from inspection, test adhesion and current technical documentation.
PS-W01 · PRIMARY
2K polyurea waterproofing
Complete cold-applied two-component system for seamless waterproofing of technically suitable commercial roofs and structures. From surface control and primer to reinforced details and a white, UV-resistant waterproof final layer.
Open technical system route ↗PS-W02 · PRIMARYBitumen renovation
Renovation of stable mineral bitumen membranes with repair of bubbles, seams and details before the new waterproof layer structure
Open technical system route ↗PS-W11 · PRIMARYFast-track PU roof coating
Water-based one-component PU membrane for technically suitable roofs where a short implementation window, early rain resistance and low emissions are important. A quick system route with preparation, primer, details and multiple controlled layers.
Open technical system route ↗PS-W03 · CONDITIONALConcrete roofs
Elastic waterproofing for mineral roof substrates, with repair of pores, cracks and transitions before membrane application.
View conditions ↗PS-W05 · CONDITIONALPVC/TPO renovation
Liquid renovation direction for existing synthetic roof membranes, only after identification, cleaning, test adhesion and compatibility check.
View conditions ↗- Bituminous roofing membranes
- Concrete and cement-bound grade layers
- Technically suitable existing membranes
- Metal details and gutters
- First exclude moisture from the roof structure
- Repair loose or weakened areas
- Demonstrate adhesion and compatibility
- Include drains, upstands and penetrations
- Enclose wet or insufficiently load-bearing surfaces
- Unknown layers without compatibility check
- Only cover structural defects with coating
- Performance claims without appropriate system documentation
From recording to delivery
Four steps that make the system controllable.
- 01
Roof survey
Build-up, moisture, adhesion, details and drainage are recorded.
- 02
System design
Primer, repairs, detail reinforcement and membrane are determined as one route.
- 03
Phased implementation
Work zones and weather windows are tailored to business operations.
- 04
Handover
Execution, details and maintenance points are recorded in a verifiable manner.
Frequently asked questions
For a targeted first project decision.
Can coating be applied over any existing commercial roof?
No. Material, moisture, attachment, cohesion and compatibility must first prove suitable.
Is a white roof automatically energy efficient?
A white surface can limit the heat load, but actual energy savings depend on insulation, building use, installations and climate.
Visuele waterdichtingsselector
Begin waar uw projectvraag begint.
Kies een bouwdeel, herken een probleem of selecteer het gewenste projectresultaat. U krijgt direct de meest logische technische route.
BOUWDEEL / BedrijfsdakenAANBEVOLEN ROUTE
Waterdichting voor platte bedrijfsdaken
Van dakconditie en bedrijfsrisico naar een complete, controleerbare renovatieopbouw.
Bekijk deze route ↗