Ponding and standing water
Poor falls or inadequate drainage can leave water sitting on the roof surface, adding pressure on the waterproofing and creating pathways for water ingress over time.
TORCH-ON WATERPROOFING
Torch-On Waterproofing for Flat Roofs
Torch-on waterproofing uses a bituminous membrane that is heat-fused to a properly prepared surface to create a durable waterproofing layer. It is commonly used on flat roofs where correct surface preparation, drainage and detailing are critical to long-term performance.
Drytek assesses the existing roof condition before recommending the appropriate system. This can include substrate preparation, repairs to damaged areas, treatment of laps and joints, and careful detailing around parapets, outlets and penetrations.
COMMON PROBLEMS
Common flat roof waterproofing problems
These are the most common ways flat roof waterproofing fails — usually signalling that the membrane has reached the end of its service life or was never correctly detailed in the first place.
Failed or deteriorated waterproofing
Ageing membranes and coatings can crack, blister or split, gradually losing their ability to keep water out.
Leaks around joints, upstands and flashings
Parapets, wall junctions, outlets and expansion joints are common failure points once the detailing around them deteriorates.
Cracks and exposed concrete surfaces
Cracks and porous areas in exposed concrete give water a way to penetrate, leading to dampness and damage below the surface.
TORCH-ON APPLICATIONS
Torch-on waterproofing applications
Torch-on systems can be used across a range of waterproofing applications, from residential flat roofs to larger commercial surfaces and below-ground areas.
Flat Roof Torch-On Waterproofing
Torch-on membrane systems provide a durable waterproofing solution for properly prepared flat roofs.
Torch-On Re-Waterproofing
Where an existing waterproofing system has deteriorated, re-waterproofing can restore protection after the roof condition has been properly assessed and prepared.
Commercial & Industrial Torch-On Waterproofing
Suitable torch-on systems can be applied to larger commercial and industrial surfaces, including parking decks and other concrete structures.
Foundation & Vertical Torch-On Waterproofing
Torch-on membrane can also be used for suitable below-ground and vertical waterproofing applications where the substrate and site conditions allow.
Torch-On Waterproofing Across Johannesburg and the East Rand
- Randburg
- Sandton
- Midrand
- Bedfordview
- Germiston
- Edenvale
- Boksburg
- Alberton
- Kempton Park
- Benoni
- Johannesburg South
FAQS
Torch-On Waterproofing - Common Questions
Need torch-on waterproofing in Johannesburg?
Get your roof assessed by Drytek and receive a professional recommendation for the appropriate waterproofing solution.
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