Due to their position, roofs are exposed to considerable temperature and weather related stresses. The formation of cracks due to tension in the waterproofing layer can be the consequence. Safe retroactive waterproofing is required. It is vital to apply products which are characterized by great elasticity and high UV-resistance.
Concrete roofs are often difficult to waterproof with membranes due to numerous penetrations and complex geometry. KÖSTER Elastic Roof is a liquid applied elastic waterproofing for roofs. It is UVresistant, white and crack bridging. The product does not contain solvents and allows an easy, seamless application.
KÖSTER Elastic Roof is directly applied onto the prepared concrete substrate by roller or spraying. It has very good adhesion to itself (important for overlapping and easy repair) and even damp substrates.
Absorbent substrates are primed with KÖSTER Polysil TG 500.
Always adhere to the specifications in the respective Technical Guidelines.
Roof waterproofing with cold self-adhesive sealing membranes
Smaller roofs on non residential buildings can quickly and easily be waterproofed with the cold self-adhesive sealing membrane KÖSTER KSK Alu Strong. The clean and dry substrate is primed with KÖSTER KBE Liquid Film.
KÖSTER KSK Alu is applied onto the dry and primed roof area. Membranes have to overlap a min. of 10 cm on each side. Connections, penetrations and overlaps are sealed with KÖSTER KBE Liquid Film.
Always adhere to the specifications in the respective Technical Guidelines.
