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Roofing

Roofs are subject to extreme stress. They are exposed not only to all types of weather conditions, but often also to chemical and biological pollutants.

In addition the classic flat roof is undergoing considerable change. The roof is becoming a utilised surface. Penetrations, aerials, air-conditioning units and the associated maintenance tasks are taking their toll on roof waterproofing systems more than ever, and yet these roofs are expected to be even more reliable. In urban areas roofs are being converted into new living spaces. Planted roofs, terraces and leisure zones are becoming more common. ALSAN Systems offer a customised solution for all these requirements. From coloured markings for the maintenance paths and resilient regeneration layers to fully developed, heavy-duty and complete waterproofing systems a whole raft of tailor-made solutions are available with a wide range of attractive finishes.

PMMA ROOFING SYSTEM EASY 7710

Structure
  1. Concrete
  2. Bitumen precoat
  3. Bitumen waterproofing
  4. ALSAN 971 F (rolled surfacing)
  • Easy application as roller-applied surfacing that can be applied directly to existing bitumen waterproofing
  • Abrasion-resistant and weather-resistant
  • Increases the life of the existing waterproofing system
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PMMA ROOFING SYSTEM MEDIUM 7720

Structure
  1. Concrete
  2. Bitumen precoat
  3. Bitumen waterproofing
  4. ALSAN 172
  5. ALSAN 770 + ALSAN Fleece
  • ETAG 005 certified
  • Special primer for direct application to weathered bitumen sheets
  • Increases the life of the existing waterproofing system
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PMMA ROOFING SYSTEM MEDIUM 7721

Structure
  1. Concrete
  2. ALSAN 170
  3. ALSAN 770 + ALSAN Fleece
  4. ALSAN 970 F
  • Walkable with a slip-resistant option
  • ETAG 005 certified with approriate reaction to fire test BroofT1
  • Upstands and penetrations can be waterproofed easily, irrespective of the substrate material
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PMMA ROOFING SYSTEM COOLROOF 7711

Structure
  1. Concrete
  2. Bitumen precoat
  3. Bitumen waterproofing
  4. Alsan 172 CR (white)
  5. Alsan 970 CR (RAL 9016)
  • Solar Reflectance Index (SRI) 108 (calculated according to ASTM E 1980-01)
  • Significant reduction in energy demand for interior cooling
  • Reduction in operating and maintenance costs, as lower surface temperature prolongs the system's service life
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References

Roofing

Flatiron Building

The world famous Flatiron Building in New York City is protected by Soprema’s ALSAN PMMA liquid membrane technology. In the dead of winter with temperatures far below freezing, ALSAN created an impenetrable liquid waterproofing membrane guaranteed to be waterproof for 20 years.

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Roofing

SAFE LANDING SITE

This summer saw the first emergency response helicopters land on a new helipad at Martigny Hospital. As the area is surfaced with PMMA products from SOPREMA's ALSAN range, the new landing site is now perfectly able to handle the tough demands of flight and hospital operations.

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Roofing

ROOF REFURBISHMENT GRAZ

The saw-tooth roof with its twin-layer bitumen waterproofing on top of thermal insulation had seen better years and was in need of refurbishment. To avoid disposal costs, the client opted for a liquid-resin overlay. Since PMMA products provide fast and flexible waterproofing options, the ALSAN system offered the best solution for this project.

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Roofing

PMMA roof for Bosvoorde race course

Brussels and the surrounding area used to boast numerous horse racing venues. But the Bosvoorde Hippodrome in the district of Ukkel is the only Brussels racetrack to have survived over the years. After a complete facelift, the 100-year-old horse racecourse is being redesignated as a green leisure pool (DROH!ME - Melting Park).

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Roofing

Liquid resins for a whale back

An old military storage building in Rapperswil was transformed into an art museum and received a new roof during the conversion. The roof of the 100-year-old building was completely reconstructed and literally unfolded. The roof coating was a real challenge for the contractors, due to its unusual geometry.

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Roofing

Sprayed waterproofing for Meerhout water tower

The Pidpa water tower on the Watertorenstraat in Meerhout underwent a thorough restoration, which included renovation of the roof. The copper roofing of the conical structure – which now hosts numerous transmission antennas and technical systems – was removed, and the roof was re-waterproofed using a liquid waterproof coating. This was very easy to apply, despite the numerous roof details.

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