The construction, design and service activities in the field of construction with a focus on land, transport, underground, water supply and special construction. These buildings then are single-family houses, but also industrial buildings, roads, railways or bridges.

Production and sale of building insulation: - light belts - classic asphalt strips -modified asphalt strips - special asphalt strips -modified SBS shingles - foil OLDROYD from Norway - polystyrene foam