Roof waterproofing in Northcliff
Northcliff climbs the ridge west of the city, and its homes are built to the slope. Steep stands and exposed roofs change what a waterproofing job looks like here.
Height, slope and wind-driven rain
Homes on the Northcliff ridge are more exposed than most of Johannesburg's suburbs, so wind-driven rain reaches places a sheltered roof never sees: under a lifted flashing, past a parapet, and up the underside of an overhang. The same exposure means the fastenings and the ridge mortar take more of a beating over the years.
Many of the homes here use flat concrete roofs and concrete balconies to hold the view, which puts a membrane on the west-facing side of more properties than in a suburb of pitched tiles (source: The Handyman Johannesburg).
What Northcliff roofs usually need
On a ridge home the details come first. The contractor checks the flashings and the parapets where wind-driven rain gets in, then the flat sections that need a membrane. On a steep stand, access and safety are a real part of the job, and the quote reflects that.
Flashings, parapets and the view
On the ridge, the flashings and parapets take the wind, and that is where a Northcliff leak usually starts. The contractor checks the metal dressed around a parapet, a chimney or a vent pipe, and the seal along the top of a wall, because a flashing that has lifted is the first way wind-driven rain gets under a roof.
Roof waterproofing pages for Northcliff
Frequently asked questions
My roof is exposed to the wind. Does that change the waterproofing?
It makes the flashings and the fixings more important, because that is where wind-driven rain enters. The system itself is chosen the same way as anywhere else.
Is a steep stand more expensive to waterproof?
Access and safety add to the cost, so yes, it usually is more. It does not change the method, only the time and the equipment needed.
Can you waterproof a concrete balcony as well as the roof?
Yes. A concrete balcony is a flat surface like a roof and takes a similar membrane. Note it in your enquiry so it is included in the quote.
Sources
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