Location: Purmerend. Executed by DB Dakwerken.
Guide rainwater back to the drain
Prolonged standing water was the primary concern regarding this flat residential roof in Purmerend. The combination of sagging sections and worn roofing required more than just a new top layer. First, the shape of the roof had to be improved so that rainwater could drain away more effectively.
DB Dakwerken has locally filled the roof to restore the required slope. The old roof layers have been removed, and damaged parts of the substrate have been included in the repair. In addition, the insulation and the rest of the roof structure have been inspected and, where necessary, supplemented or replaced.
Covering and drainage coordinated
A two-layer bitumen finish has been applied to the prepared substrate. The SBS top layer forms the new protection against precipitation. New roof trims, penetrations, and drains connect to this; the transition to upstands and corners has also been refinished.
By addressing the roof shape and waterproofing together, both the cause of water accumulation and the worn finish have been treated. The roof can drain rainwater again, and the home has renewed protection against moisture. The handover includes a 10-year warranty on materials and labor.







