Skylights for Flat Roofs Across Gauteng, Built to Keep Water Moving
Any skylight shape, fitted with the upstand and fall your flat roof needs. Call 082 44 66 001 for a straightforward quote.
A flat roof does not shed water the way a sloped roof does, which means a skylight fitted on a flat roof needs a raised upstand and a slight fall built in, or water will sit around the base and eventually find a way through. Fitting a pitched-roof skylight design on a flat roof is one of the most common causes of leaks we get called out to fix.
Why Flat Roof Installation Needs a Different Approach
On a flat or low-slope roof, water can only move if there is somewhere for it to go. A skylight built for a flat roof sits on a raised upstand, or kerb, that lifts the frame above the level of standing water, with a slight fall built into the surrounding roof surface to guide water toward the drainage points rather than letting it pool around the base.
Waterproofing membranes used on flat roofs also need to be integrated with the skylight upstand correctly, so the membrane and the skylight frame form one continuous watertight layer rather than two separate surfaces with a gap between them.
Any skylight shape we offer, tubular, fixed, vented, dome, or pyramid, can be adapted for a flat roof, provided the upstand height and drainage detail are built correctly for your specific roof covering.
How We Install Skylights on Flat Roofs
We build an upstand to the correct height for your roof covering, whether that is a concrete slab, a membrane system, or another flat roofing material. The waterproofing membrane is dressed up and over the upstand and sealed to the skylight frame, and we confirm the surrounding roof surface has enough fall to move water toward the nearest drainage point.
Every flat roof installation carries a 15-year guarantee on workmanship and materials, and most standard jobs are completed within a single day.
Flat Roof Skylights for Gauteng Homes and Businesses
We fit skylights on flat and low-slope roofs across Johannesburg, Pretoria, East Rand, West Rand, North Rand, South Rand, Centurion, and Midrand. Correct upstand height and drainage matter even more here, since Gauteng’s hailstorm season, from October to March, can bring heavy downpours that test any weak point in a flat roof’s drainage.
Flat roofs are common on modern Gauteng extensions, garages, and commercial buildings, and a correctly fitted skylight is one of the most effective ways to bring daylight into these spaces without compromising the roof’s waterproofing.
Flat Roof Skylight Questions
Q. Why does a flat roof skylight need an upstand?
The upstand lifts the skylight frame above the level of any standing water, which is essential on a roof that does not shed water the way a sloped roof does.
Q. Can you fit a skylight on my waterproofed flat roof without voiding the waterproofing warranty?
We integrate the skylight upstand with the existing membrane correctly, and can work alongside your waterproofing supplier’s requirements where needed.
Q. Do you fit skylights on commercial flat roofs?
Yes, we fit skylights on flat roofs for both homes and businesses across Gauteng, including offices, garages, and other commercial buildings.
Get Your Flat Roof Skylight Built to Last
Call now for a straightforward quote, matched to your flat roof and drainage needs.
082 44 66 001See our full range of Skylight Installations, or head back to Ilanga Skylights and Roof Turbine Ventilators to see everything we offer.