Torch-on vs liquid — honest trade-offs
Torch-on remains a proven solution for large unobstructed decks when open-flame permits, wind, and insurance constraints allow. Liquid systems excel at complex geometry, tight flashings, and over-buried details where seams are risk points. Maverick does not force a single SKU; we align system choice to risk registers.
Drainage, falls, and long-term ponding risk
Even premium membranes age faster under permanent ponding. Where falls are inadequate, Maverick flags re-screed or targeted leveling scopes rather than burying the hydraulic problem under new rubber. SANS 10400-L discussions belong in the report narrative so trustees understand why drainage work may accompany waterproofing.
QA checkpoints that protect warranties
Moisture content, primer compatibility, reinforcement at corners, and sequential holiday testing matter more than marketing adjectives. Independent QA can be bundled for portfolio managers who require third-party sign-off.
Typical project profiles (anonymised)
Failed torch-on overlay with trapped moisture
A liquid system was specified after core samples showed inter-laminary moisture; phased drying and venting avoided blistering the new membrane.
Office park HVAC cluster
Complex plant bases received liquid detailing while field areas used torch-on for speed — hybrid programmes are common when fire and geometry conflict.
Sectional-title top storey leaks
Trustee packs included photographic condition logs, outlet rebuilds, and 10-year manufacturer maintenance calendars.
Related technical services
Frequently asked questions
Why do Gauteng flat roofs leak so often?▼
UV embrittlement, ponding, detailing errors at penetrations, and foot traffic without protection courses are frequent contributors. Combination failures are normal.
Can you waterproof over an old torch-on?▼
Sometimes, after adhesion tests and moisture risk assessment. Not every aged system is a suitable substrate — engineer/manufacturer guidance decides.
How long before rain exposure after liquid application?▼
Product-specific. We track weather windows and may tent critical stages during Highveld thunderstorms.
Do you issue maintenance plans?▼
Manufacturer-backed warranties typically require periodic inspections and debris clearing — we document those obligations plainly.
What about rooftop safety?▼
Harness lines, edge protection, and rescue plans are filed for rope or perimeter work per OHS requirements.
Is ponding acceptable?▼
Temporary ponding after storms differs from chronic structural ponding. Chronic cases need drainage remediation, not only membrane replacement.
Do you handle metal roofs?▼
Maverick focuses on concrete flat roofs; IBR metal scopes may be referred or partnered depending on asset class.
What is the cost per m²?▼
Pricing depends on removal, leveling, insulation, and system type. Site-specific measurements and risk items drive quotes — we avoid bait pricing.
Can you work in stages for BC cash flow?▼
Yes — phased roof halves are common when reservoirs or plant cannot be shut down simultaneously.
Do you integrate roof painting afterwards?▼
Reflective protective coatings can extend membrane life; Maverick sequences compatibility between trades.