01 · Project overview

What is this project?

Car Park Roof Waterproofing in Mallorca: Deck and Ramps, 860 square metres in 2024. España – Baleares. The products on the job are Polyurea Rayston. The Balearic sun and the salt in the air are the two things a finish has to live with, every season.

In October 2024, the crew renewed about 860 m² of roof deck and ramps.

They treated the joints, primed the concrete and sprayed Polyurea Rayston with anti-slip.

Finally, a pigmented Colodur coat sealed the surface.

Krypton Chemical supplies the resin system. The duty is ordinary and strict: keep water, wear and weather on the right side of the structure, and do it in the details as well as in the open field.

ProjectCar Park Roof Waterproofing in Mallorca: Deck and Ramps
PlaceEspaña – Baleares
Area860 m²
Year2024
LineWaterproofing
ProductsPolyurea Rayston

02 · The challenge

What did this structure ask of the system?

A car park is traffic, turning wheels and water that brings salt and oil. The deck moves with the day. A rigid cement coat cracks at the joint and the crack becomes a drip on the cars below.

Car Park Roof Waterproofing in Mallorca: Deck and Ramps has to bridge that movement and stay stuck. The ramp and the drain take more wear than the bay in the corner. Across 860 square metres, a thin spot is not a small repair.

Wet, worn car park roof deck before repair, Mallorca
Wet, worn car park roof deck before repair, Mallorca

03 · The solution

Which system was trusted here?

The system trusted here is the one named for the job: Polyurea Rayston. It is chosen because it matches the substrate and the exposure, not because every building wants the same can.

The build-up is there to survive the exposure this structure actually has, including the lines where workmanship usually goes thin.

04 · Application

How is the system built?

Where the system is Polyurea Rayston, the concrete or the prepared deck is not sprayed over dirt. Pull-off should be at least 1.4 N/mm2. Cracks are cut out and filled. Moisture in the concrete stays under 4 percent, with the concrete between 10 and 40 degrees C. If the slab is damp behind, two coats of epoxy primer go on, the second blinded with quartz. That bond is what stops a blister when the deck heats up.

The spray is hot. Resin about 65 degrees C, isocyanate about 75 degrees C, hose about 65 degrees C, and at least 140 bar at the gun. The usual build is 1.5 to 2.0 kg per square metre, about 1.5 to 2 mm. Gel time is about 4 seconds at 25 degrees C. Typical elongation is 324 percent and tensile strength is 16.2 MPa. Those are the product’s figures, not a thickness measured on Car Park Roof Waterproofing in Mallorca: Deck and Ramps. An aromatic film shifts colour in the sun, so an exposed face takes an aliphatic topcoat. A buried lining does not need that coat to keep its strength.

On Car Park Roof Waterproofing in Mallorca: Deck and Ramps the deck carries cars, not footsteps. Turning wheels shear a coating that is only stuck, not built. Ramps are worse than flat bays. Joints between decks move, and the membrane either bridges them or the joint is detailed as a joint, on purpose.

Water on a car park brings oil and, in winter, salt. The film has to live with both. Drains are inside the system. A drain that is cut through the membrane after the fact is a hole, whatever the grate looks like.

An exposed deck also takes the sun. An aromatic membrane keeps its strength and loses its colour. Where the deck is open to the sky, a topcoat is part of the build-up, not a decoration.

05 · Results

What does a job like this stand behind?

Car Park Roof Waterproofing in Mallorca: Deck and Ramps has one standard. The coating is still doing its job after the building is back in use, at the details as well as in the middle. The area on this job is 860 square metres.

Figures for cure, thickness and strength, where they are given, come from the product data sheets. They are not a test cut out of this building.

What this asks of Car Park Roof Waterproofing in Mallorca: Deck and Ramps is workmanship at the difficult line. The open field is the easy part of a resin job. Outlets, edges, penetrations and changes of plane are where thickness goes missing, and where water or wear finds the gap. The same products and the same care belong there, and the cure is allowed to finish before the building goes back into use. That is the difference between a coating that was simply applied and a system that stays in service.

06 · Products

Products on this job

Polyurea Rayston

Named on this project. The data sheet carries the application window and the typical figures.

Technical data sheet

07 · FAQ

Frequently asked questions

Where is this project?

Car Park Roof Waterproofing in Mallorca: Deck and Ramps. España – Baleares

When was the work done?

2024.

Which products were used?

Polyurea Rayston.

How thick is the polyurea?

The usual spray is 1.5 to 2.0 kg per square metre, about 1.5 to 2 mm. That is guidance from the data sheet, not a gauge reading on this roof.

Does sunlight damage it?

The pure polyurea is aromatic, so colour can shift while strength stays. An aliphatic topcoat is used where the film stays in the sun.

08 · Photos

On site

Car park roof waterproofing in Mallorca: finished blue deck with red canopies
Car park roof waterproofing in Mallorca: finished blue deck with red canopies
Wet, worn car park roof deck before repair, Mallorca
Wet, worn car park roof deck before repair, Mallorca
Grinding machine preparing the car park roof concrete, Mallorca
Grinding machine preparing the car park roof concrete, Mallorca
Crew at work on the parking roof during membrane application, Mallorca
Crew at work on the parking roof during membrane application, Mallorca
Yellow hatched no-parking zone on the waterproofed car park roof, Mallorca
Yellow hatched no-parking zone on the waterproofed car park roof, Mallorca
Worn concrete parking ramp before waterproofing, Santa Margarida, Mallorca
Worn concrete parking ramp before waterproofing, Santa Margarida, Mallorca
Car park deck with joints and cracks treated before the membrane, Mallorca
Car park deck with joints and cracks treated before the membrane, Mallorca
Primed concrete ramp between walls on the car park roof, Mallorca
Primed concrete ramp between walls on the car park roof, Mallorca
Blue polyurea membrane on the parking ramp, Mallorca
Blue polyurea membrane on the parking ramp, Mallorca
Freshly coated parking bays under red steel canopies, Mallorca
Freshly coated parking bays under red steel canopies, Mallorca
White direction arrows on the new car park roof surface, Mallorca
White direction arrows on the new car park roof surface, Mallorca
Ramp entrance with white lane lines on the blue finish, Mallorca
Ramp entrance with white lane lines on the blue finish, Mallorca
Coated deck edge beside a red guard railing, Santa Margarida
Coated deck edge beside a red guard railing, Santa Margarida
Zebra crossing painted on the waterproofed car park roof, Mallorca
Zebra crossing painted on the waterproofed car park roof, Mallorca
Tools and materials on the deck during detailing works, Mallorca
Tools and materials on the deck during detailing works, Mallorca
Curved arrows on the coated ramp in shade, Mallorca
Curved arrows on the coated ramp in shade, Mallorca
Parking bays marked on the finished roof deck, Mallorca
Parking bays marked on the finished roof deck, Mallorca
Marked bays along the perimeter wall of the car park roof, Mallorca
Marked bays along the perimeter wall of the car park roof, Mallorca
Finished blue car park roof with red canopies and white bay lines, Mallorca
Finished blue car park roof with red canopies and white bay lines, Mallorca
Coated ramp meeting the side wall with an arrow marking, Mallorca
Coated ramp meeting the side wall with an arrow marking, Mallorca
Row of marked bays under the canopy frames, Santa Margarida
Row of marked bays under the canopy frames, Santa Margarida
Narrow ramp lane in blue anti-slip finish, Mallorca
Narrow ramp lane in blue anti-slip finish, Mallorca
Network of sealed cracks on the deck before priming, Mallorca
Network of sealed cracks on the deck before priming, Mallorca
Wide view of sealed cracks across the open car park roof, Mallorca
Wide view of sealed cracks across the open car park roof, Mallorca
Blue anti-slip membrane texture on the car park roof, Mallorca
Blue anti-slip membrane texture on the car park roof, Mallorca
Wide view of surface preparation with grinders and cables, Mallorca
Wide view of surface preparation with grinders and cables, Mallorca
Perimeter lane in blue finish along the boundary wall, Mallorca
Perimeter lane in blue finish along the boundary wall, Mallorca

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