Climate change is no longer a distant threat; it’s a daily reality, warns the Human Sciences Research Council (HSRC). As South Africa faces more frequent and extreme weather events, the construction industry is feeling the pressure to adapt or risk falling behind.
The latest UN Intergovernmental Panel on Climate Change (IPCC) report highlights growing financial and safety concerns, especially for the country’s already climate-vulnerable, semi-arid regions.
Construction Delays and Rising Costs
According to Research Gate, adverse weather is now responsible for delays in 45% of global construction projects, costing billions each year. In South Africa, the risk is compounded by infrastructural and socio-economic vulnerabilities.
“Climate change is impacting our industry now,” says Danie Hattingh, business spokesperson for the Building Industry Bargaining Council (BIBC). “In just the first half of 2024, natural disasters cost Africa approximately US$ 0.5 billion (ZAR 9 billion). From floods that destroy transport routes to droughts that halt site operations, construction is exposed on all fronts.”
Beyond delays, weather-related disruptions impact worker safety, project viability, and job security, especially in under-resourced areas such as informal settlements and peri-urban developments where infrastructure is weak.
Collective Agreements as a Climate Response
The BIBC believes that collective bargaining can offer vital flexibility and fairness in an unpredictable climate. “Our collective agreement acknowledges the growing frequency of weather disruptions,” Hattingh explains. “It allows contractors to temporarily lay off workers during climate-induced delays without dismantling the project team. This helps manage risk on both sides.”
This approach is especially critical in regions prone to flooding, water shortages, or energy instability. Construction in low-lying coastal areas or sites without adequate stormwater infrastructure is particularly vulnerable.
Designing for a Changing Climate
Forward-thinking design and sustainable materials are no longer optional, they’re essential. Passive design strategies, such as optimising building orientation, improving airflow, and using shading, can reduce dependency on energy-heavy cooling systems. In high-risk zones, climate-adaptive techniques such as elevated structures, permeable paving, and fire-resistant materials are helping minimise risk and environmental impact.
“These aren’t just visual upgrades, they’re economic imperatives,” Hattingh says. “Green design supports local economies, creates skilled jobs in sustainable industries, and aligns with global goals like the Paris Agreement and UN Sustainable Development Goals.”
Technology and Innovation Driving Resilience
Digital tools and modern construction methods are reshaping how the industry builds. Modular and prefabricated structures reduce waste, accelerate project timelines, and offer rapid rebuild solutions after climate events. On-site solar panels, rainwater harvesting systems, and off-grid power sources are becoming standard features for resilient, sustainable buildings.
The benefits are clear:
- Lower operational costs
- Reduced environmental footprint
- Increased safety for workers and occupants
- Compliance with regulatory and financial frameworks
Risk of Inaction
Firms that fail to adapt face mounting operational risks, from supply chain disruptions to higher insurance premiums and legal exposure. Poorly built or outdated structures may become uninsurable, unsafe, or non-compliant with future legislation.
“The costs of doing nothing are far higher than those of adapting,” Hattingh cautions. “We’re already seeing clients and investors prioritising sustainability. Construction companies that embrace resilience are better positioned to secure long-term business.”
Green Building Pays Off
Certifications from organisations like the Green Building Council of South Africa (GBCSA) are helping companies future-proof their operations. These certifications support tax incentives, unlock green financing, and improve property values. In the commercial sector, green-certified buildings often command higher rental and resale prices.
Importantly, sustainability and profitability are not mutually exclusive.
Weather Extremes Disrupt Labour and Materials
One of the most pressing impacts of climate change is its unpredictability. Unseasonal storms, heatwaves, and droughts are increasingly difficult to plan around. These events delay material deliveries, interrupt workflow, and endanger crew safety.
“Historically, we could plan around the seasons,” says Hattingh. “Now, we’re facing extreme heat or rainfall at times we never used to. It affects every aspect of scheduling and execution.”
Under the BIBC’s agreement, provisions exist for structured layoffs and reinstatements. However, long-term resilience depends on integrating climate-smart planning, materials, and labour practices.
Building a Better Future, Together
Ultimately, a resilient construction sector supports more than just bricks and mortar. It builds safer, more inclusive communities and drives meaningful economic growth.
“The construction industry doesn’t just react to climate change,” Hattingh emphasises. “It shapes how we live with it. Through collaboration, smart planning, and collective agreements, we can build a future that withstands both environmental and economic pressures.”
