Roof waterproofing works

Summary

The tender concerns roof waterproofing and sheet-metal works for a new administration building in Recklinghausen, including green roofs, terraces, drainage, a fall-protection system, a roof window and smoke-ventilation equipment, maintenance, calculations and documentation. The submission deadline is 8 October 2026 at 10:00, and tenders remain binding until 7 December 2026. Price is the only award criterion. The bidder must provide three comparable completed projects, each with a net value of at least EUR 450,000 and a start date no earlier than 1 January 2021. The tender must be submitted electronically, and the priced bill of quantities must be provided both in D84 or X84 format and in PDF; a non-compliant format excludes the tender from evaluation. Extensive technical requirements, four-year maintenance, guarantees and the required declarations and evidence must be taken into account.