Windhoek
Roof waterproofing in Windhoek
Waterproofing fails at edges and holes far more often than in the middle of a slab. Where the membrane turns up a parapet, where it meets an outlet, where a pipe passes through — that is where the water finds its way in.
UV is the second half of the story. A membrane left without proper protection ages quickly at this altitude, and a system that lasts a decade at the coast can craze in a few Windhoek summers.
- Membrane systems with UV protection specified for highland conditions
- Parapet upstands terminated properly, not surface-stuck
- Fall correction and outlet sizing where ponding is the real issue
- Balcony threshold and box-gutter detailing
Step 1 of 7
14%
What's happening with your roof?
What the work involves
Upstands and terminations
The membrane needs to run high enough up the parapet and be terminated into a chase or under a capping, not just stuck to the face of the plaster. A low or unsupported upstand is the classic reason a newish flat roof leaks along one wall only.
Falls and outlets
Water must reach an outlet. Ponding is not simply cosmetic; it accelerates membrane breakdown and finds every pinhole. Where the fall is wrong, a screed correction is part of the job rather than an optional extra.
Box gutters and balconies
Box gutters between roof planes and above living space carry the same risk as a flat roof and collect dust all dry season. Balconies add door thresholds, which need their own detail so the membrane does not stop short at the frame.
Advice
Worth reading first
Storm damage to a Windhoek roof: what to do in the first 24 hours
A summer thunderstorm has opened your Windhoek roof. What to do first, what to photograph, what to avoid, and what can wait until the roof is dry.
Flat-roof waterproofing on new Windhoek builds: where it goes wrong
Flat concrete roofs dominate new building in Kleine Kuppe, Rocky Crest and Auasblick. The falls, upstands, outlets and penetrations that decide whether they leak.
Other roofing work in Windhoek
Roof repair
Fixing what the highland sun, dust and summer storms have worked loose.
Leak repair
Tracing water back to where it actually gets in.
Roof replacement
When patching costs more than starting again.
New roof installation
Getting the details right the first time on a new build.
Metal roofing
IBR, corrugated and concealed-fix work built for thermal movement.
Commercial roofing
Warehouse, office, retail and body-corporate roofs.
Roof inspection
A photographed condition report before the rains or before you buy.
Get a quote for waterproofing in Windhoek
Describe the roof, add a couple of photos and pick how you want to be contacted. It takes about a minute.