Technical Standards Used in Flat Roof Fastener Design

Three regulations are key when selecting the fasteners and the design of the mechanical flat roof fastening:

Flat Roof Guideline Requirements for Mechanical Fastening

Flat roof guideline (as of March 2020): Addendum to the state of the art by Deutsche Dachdeckerhandwerk (German Association for the Roofing Trade)

DIN 18531 Requirements for Roof Waterproofing Systems

DIN 18531 (as of August 2025): Waterproofing of roofs, balconies, and walkways describes the current state of the art.

DIN 18336 Requirements for Roofing and Waterproofing Works

DIN 18336 (as of September 2023): VOB (German Construction Contract Procedures) – Part C: General Terms and Conditions for Construction Services (ATV) – Roofing and Roof Waterproofing Works, governs the performance of construction services agreed between the client and the contractor.