Warning Issued on Increased Flood Risks and Structural Damage in Nigeria
The Council of Registered Builders of Nigeria (CORBON) has issued a caution regarding heightened risks of flooding and structural damage as rainfall intensifies in 2026. This advisory calls on property owners, developers, and facility managers to take urgent precautionary measures to safeguard their assets.
Analysis of Seasonal Climate Forecasts
This warning comes in light of the seasonal climate forecasts for 2026 released by the Nigeria Meteorological Agency (NiMet). The forecasts indicate an early to normal start to the rainy season, an extended duration of rainfall in various states, above-average precipitation in key areas, and severe drought conditions in others.
Assessing the Threat to Infrastructure
CORBON emphasizes that these changing weather patterns pose significant risks to buildings, infrastructure, and human safety, particularly in vulnerable communities prone to flooding. This insight reflects the council’s commitment to fulfill its regulatory mandate in the Nigerian building industry.
Climate Risk Patterns for 2026
CORBON has identified several critical climate risk patterns anticipated for 2026, including:
- Longer-than-normal rainy seasons in states such as Lagos, Benue, Enugu, and Taraba.
- Above-normal rainfall projected in regions including Borno, Sokoto, Kebbi, and Abuja.
- Severe drought expected in states such as Oyo, Ogun, and Katsina.
The council warns that these conditions increase the likelihood of flooding, erosion, roof and foundation damage, and interruptions to essential services.
Maintenance and Preparedness Recommendations
CORBON urges building owners and property managers to prioritize maintenance and preparedness across critical infrastructure. For roofing and exterior walls, the council recommends repairing loose roof sheets, damaged trusses, and addressing leaking joints. It is also advised to clean gutters, ensure proper roof slopes, and reinforce waterproofing membranes.
Drainage and Structural Safety Measures
To mitigate flood risks, property owners should remove silt from gutters, downspouts, and drains, and enhance drainage systems to direct water away from buildings. Additionally, the installation of sea walls in low-lying areas is recommended. Structural safety inspections should focus on potential foundation issues such as cracking and erosion, with measures to stabilize wet areas using laterite, gravel, and geotextiles.
Electrical Safety and Indoor Air Quality Precautions
CORBON also highlights the importance of electrical safety during heavy rains. Property owners are advised to position generators and switchboards above flood levels, waterproof external conduits, and ensure sump pumps have backup power. For moisture control and air quality indoors, sealing windows and doors, improving ventilation, and inspecting basements for moisture intrusion are essential steps.
Landscaping and Estate Management Strategies
In terms of landscaping, CORBON suggests pruning trees, removing unstable branches, and maintaining permeable surfaces to manage runoff effectively. Estate management should involve forming a rainy season preparedness committee, training staff on emergency protocols, and conducting regular inspections and repairs.
Importance of Preventive Maintenance
The council warns that neglecting routine maintenance could considerably exacerbate the impact of seasonal rains. Clogged drains, deteriorating roofs, and poor site management significantly elevate the risk of flooding and structural failure. Preventive maintenance is emphasized as being far more cost-effective than emergency repairs.
Guidance on Professional Consultations
CORBON advises property owners to seek only certified professionals for inspections and repairs. The council encourages consultation with registered builders certified by the Registered Builders Council of Nigeria for professional guidance and implementation of these recommendations.
CORBON concludes with a safety message encouraging community investment and resilience by safeguarding properties against climate risks.
