Waterproofing of roofs, balconies and walkways – Part 3: Non-utilized and utilized roofs – Selection, execution and detailing
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 07/01/2017

Waterproofing of roofs – Sealings for non-utilized roofs – Part 3: Design, handling of materials, execution of sealings
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 05/01/2010