Aluminium roofs are famous for their strength, lightweight nature, and resistance to rust and corrosion.
In Nigeria and beyond, they are often the first choice for both residential and commercial buildings because they endure harsh climates – from heavy rains to intense heat. However, like every part of a building, your aluminium roof needs regular care to maximize its lifespan.
What many homeowners don’t realize is that roof care isn’t a one-time event. Each season brings different challenges. Here’s a comprehensive, season-by-season guide to caring for your aluminium roof throughout the year.
1. Dry Season (Harmattan Months – November to February)
What Happens:
During the dry season in Nigeria, dust and debris accumulate quickly. The dry winds (Harmattan) carry fine sand that settles on roofs, blocking gutters and causing scratches on the surface of aluminum sheets.
Care Tips:
- Regular Dusting and Washing: Use a soft brush or low-pressure water hose to wash off the dust buildup. Avoid abrasive materials that might scratch the aluminium coating.
- Inspect Gutters and Downspouts: Remove any sand, leaves, and debris. Clogged gutters can cause water to back up and damage the roof during the first rains.
- Seal Minor Cracks: Dry conditions make it the best time to spot and fix small cracks and openings using roof sealants designed for metal roofs.
- Check for Loose Fasteners: Strong winds might loosen screws and panels. Tighten them to prevent bigger problems during windy storms.
2. Rainy Season (March to October)
What Happens:
This is the most critical time for aluminium roofs in Nigeria. Heavy rainfall can expose any existing vulnerabilities, leading to leaks, corrosion, and even structural damage.
Care Tips:
- Pre-Rain Inspection: Before the first major rains, inspect for rust spots, loose seams, and broken flashing. Repair immediately.
- Waterproof Coating: Apply a fresh layer of waterproof coating to add an extra shield against moisture.
- Monitor for Leaks: After major rainfalls, check your ceiling and attic for signs of water intrusion.
- Trim Surrounding Trees: Overhanging branches can break and fall on the roof during storms, damaging the sheets.
Example:
A church in Port Harcourt had multiple leaks after every rainstorm. Upon Plusworld Roofing and Restoration inspection, it was found that trees hanging over the building had repeatedly damaged the roof during storms. After trimming the trees and applying new waterproofing, the leaks were completely eliminated.
3. Transition Periods (Late February, Early October)
What Happens:
As seasons shift, the fluctuating temperatures can cause expansion and contraction of metal roofs. Over time, this may loosen fasteners and warp seams.
Care Tips:
- Check for Expansion Gaps: Look for any warped areas or shifted sheets. Replace or reseal if necessary.
- Professional Roof Assessment: It’s wise to bring in a roofing professional at least once during these transitions to inspect and recommend preventive maintenance.
- Re-coat if Necessary: If your aluminium roof’s coating appears faded or worn, a fresh coat can protect it from both UV rays and moisture damage.
4. Hot Dry Season (March to May)
What Happens:
The intense Nigerian heat can cause roof materials to expand. UV rays can degrade any protective coating, leaving the aluminium exposed to oxidation.
Care Tips:
- Apply Reflective Coating: Reflective coatings not only protect the roof but also keep your home cooler, lowering energy bills.
- Check Paint and Coatings: If you notice peeling or fading, consider repainting or recoating the aluminium to preserve its integrity.
- Ventilation Check: Proper ventilation prevents heat buildup that can warp the metal from below.
Example:
Mrs. Funmi, a homeowner in Lagos, noticed her house was extremely hot during the dry months. After installing a reflective roof coating, her indoor temperature dropped by nearly 5 degrees Celsius without needing extra air conditioning.
Year-Round Aluminium Roof Maintenance Tips
Regardless of the season, there are best practices you should observe throughout the year:
- Schedule Routine Inspections: At least twice a year (before and after the rainy season) to catch problems early.
- Keep Records: Document inspections, repairs, and any changes made to the roof for warranty and future reference.
- Use Professional Services: DIY inspections are great, but at least once a year, hire professional roofers to perform a detailed assessment.
- Be Proactive, Not Reactive: Fix small issues before they become major, costly repairs.
Conclusion
Aluminium roofs are built tough, but proper care through every season is what ensures they last 40 years or more. Being attentive to seasonal maintenance needs not only preserves the roof’s appearance but also saves you from expensive replacements down the road.
When in doubt, always call Plusworld roofing expert to assess and recommend the best maintenance strategies tailored to your location and weather challenges.
Ready to protect your aluminum roof year-round?
Contact our expert team today for inspections, waterproofing, and professional maintenance services!
