Sika AG offers its products for various end-use markets including automotive, building components, cement technology, concrete refurbishment, elastic bonding, general industry, marine, renewable energies, roofing, transportation, and waterproofing. The company conducts its waterproofing business through its construction business segment. It provides a range of single-ply and built-up flat roofing systems incorporating both flexible sheet and waterproofing membranes for the roofing market. The company provides various products and systems to the waterproofing membranes industry, which includes waterproofing basement and other concrete structures, waterproofing tunnels, pond pool and tank lining, waterproofing bridge decks, drinking & clean water storage, waterproofing wet rooms, and waterproofing balconies.