Technology

Hot-applied waterproofing

A continuous Hydrotech MM6125 membrane on flat roofs, terraces, garage decks and green roofs.

How it works

Hot-applied waterproofing

For flat roofs, terraces and green roofs we use a hot-applied coating membrane made of the rubberised bitumen compound Hydrotech MM6125. This single-component product, which requires neither solvent nor hardener, is applied to a primed concrete substrate.

The coatings are applied hot, and their elasticity and extensibility allow them to bridge every crack and fissure in the substrate perfectly. Thanks to triple protection they seal all details reliably.

Step by step

Sealing a flat roof step by step

Priming the substrate
Applying the first membrane layer
Laying a polyester fleece between the membrane layers
Applying the second layer
Sealing roof drains with neoprene tape
Sealing penetrations through the waterproofing
Laying a protection sheet over the flexible Hydrotech layer

Typical roof finishes

Grass roofs
Ballasted roofs
Roofs with pedestrian and vehicle traffic
Roof gardens
Fountains

Advantages of rubberised bitumen waterproofing

Extreme elongation capacity and flexibility at low temperatures
Can be applied at sub-zero temperatures (down to −18 °C)
High adhesion to substrates
Applied as a continuous membrane – no seams
Resistant to many chemicals
Suitable for both new builds and renovations
Can be used on zero-pitch roofs
The polyester fleece laid between the membrane layers reinforces and strengthens the membrane