Welcome to SOPREMA
Welcome to ALSAN.
SOPREMA is synonymous with waterproofing. The SOPREMA Group specializes in the development, production and sale of bituminous, liquid and high-polymeric waterproofing and damp-proofing systems for flat roofs and buildings. Our innovative and user-friendly system products are based on 100 years of know-how.
In the area of liquid waterproofing, ALSAN SYSTEMS have assumed a position of key importance within the SOPREMA GROUP in a very short period.
Whatever your requirements, ROOF, BALCONY, WET AREA or PARKING, ALSAN and ALSAN RS offer specific SYSTEMS for economical solutions with long-term reliability.
Discover the unique benefits of ALSAN SYSTEMS for all waterproofing requirements in the modern construction industry.
ALSAN BY SOPREMA
