Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
Watec® 3E has three uses, namely draining, ventilating and uncoupling. Watec® 4E adds a fourth. By installing the Watec® 4E drain grate, standard-compliant door thresholds as per DIN 18195-5 and the “Flat Roof Guidelines” can be formed. Watec® 4E is available at a height of 10mm, Watec3E in a height of 5mm.
