First layer

Long-lasting, reliable waterproofing is guaranteed with the rugged BauderFLEX torch-on elastomer bitumen membranes or the BauderTHERM UL 50, which is easy and quick to apply. Both these products can withstand extreme conditions thanks to their superb cold bending properties and high heat resistance, and continue to provide reliable protection for decades. If the first layer is installed on a heat-sensitive sublayer such as EPS insulation panels, hot-melt bonding is not an option. In this case a cold self-adhesive waterproofing membrane such as BauderTEC KSA DUO or BauderTEC KSA is the perfect solution.

Worth knowing ...

What is multi-layering?

In conventional bitumen waterproofing systems two layers of bitumen membrane are installed on the thermal insulation. These two layers are the first layer (or underlayer) and the capping sheet. The entire surfaces of the two membranes are welded or bonded together