Liquid applied roof waterproofing kits are usually multi-component systems and are applied in liquid form in multiple layers. After curing, they form the roof waterproofing.

Regulatory framework

The use of liquid applied waterproofing products for roof waterproofing is subject to a national technical test certificate (abP), cf.  MVV TB, Section C 3. National technical test certificates are issued by testing laboratories officially recognised for this purpose, as listed in the Directory of recognised testing laboratories, inspection and certification bodies (PÜZ-Verzeichnis, see column on the right). The testing laboratories also carry out the corresponding testing and external surveillance. Please submit your application directly to a qualified testing laboratory.

As a European Technical Assessment Body, DIBt can also issue European Technical Assessments (ETAs) for liquid applied roof waterproofing kits based on European Assessment Documents (EADs) still to be developed or already existing, such as

• EAD 030350-xx-0402 Liquid applied roof waterprofing kits (superseding ETAG 005)
• EAD 030019-xx-0402 Liquid applied roof waterproofing on the basis of polysiloxane
• EAD 030065-xx-0402 Composite roof waterproofing kit

Regarding the requirements for roof waterproofing, the Technical Building Rules apply, cf. MVV TB, Section B 2.2.5. The design and execution rules are set out in the design standard DIN 18531 'Waterproofing of roofs, balconies and walkways'. Application as balcony slab waterproofing is permissible. Flashings and counter-flashings for penetrations, the joint design and other auxiliary materials are not subject to specific regulatory requirements, cf. MVV TB, no. D 2.2.1.5.