Standing water on a flat roof — Dordrecht, Zuid-Holland
If water is still pooling on your flat roof 48 hours after the last rain, you have a ponding problem. Flat roofs are designed with a slight slope to drain, but sagging decking, clogged internal drains, or shifted insulation can create low spots where water sits. Prolonged ponding accelerates membrane deterioration, adds hundreds of pounds of dead load to the structure, and eventually causes leaks. A roofer can identify the cause — whether it's a drainage issue, structural deflection, or membrane failure — and restore proper drainage with tapered insulation, additional drains, or membrane repair.
Waarom dit veel voorkomt in Dordrecht
Daken in Dordrecht variëren van steile pannendaken op oudere panden tot platte membraandaken; beide krijgen het zwaar te verduren tijdens najaars- en winterstormen van de Noordzee, wat lek- en stormschade oplevert.
Who to call
For this problem in Dordrecht, call a: Dakdekker
Vind een Dakdekker in DordrechtSymptoms to look for
- Visible puddles or standing water on the roof two or more days after rainfall
- Dark stains or algae growth in specific areas of the roof membrane
- Sagging or soft spots when walking on the roof surface
- Water stains or drips appearing on the ceiling below the flat roof section
- Clogged or slow-draining roof drains, scuppers, or internal downspouts
Spoeddienst in Dordrecht
Spoeddiensten in Dordrecht reageren binnen 25–55 minuten in de eilandstad en de Drechtsteden (Zwijndrecht, Papendrecht, Sliedrecht). Spoedtarieven rond €70–€160 voorrijden plus €65–€120/uur incl. btw — iets onder Rotterdam.