Metal Roof Waterproofing [FAQs]

Singapore’s tropical climate, with frequent heavy rains and high humidity, can lead to metal roof deterioration over time. Waterproofing helps to protect the roof from leaks, rust, and corrosion.

The frequency depends on the material and type of waterproofing applied. Typically, it’s recommended to reapply waterproofing every 5–10 years, but frequent inspections, especially after severe weather, can help ensure the roof is in good condition.

Common materials include silicone coatings, elastomeric coatings, acrylic coatings, and polyurethane foam. Each has its own advantages, depending on the condition of the roof and the client’s needs.

Yes, waterproofing can be applied to older metal roofs after proper surface preparation, which may include cleaning, rust removal, and sealing of seams or joints.

Most waterproof coatings are available in various colors, allowing homeowners to maintain or even enhance the appearance of their roofs. Some coatings are clear and don’t alter the look of the roof

Yes, waterproofing helps to prevent rust by sealing the surface from moisture, which is the main cause of rust and corrosion on metal roofs.

Signs include water stains on ceilings, visible rust or corrosion, roof leaks during or after rain, and any loose or damaged roof panels.

The best solution depends on the specific condition of your roof, its slope, and the environment. Common solutions include silicone-based coatings, which are popular for their durability and UV resistance, and elastomeric coatings, which offer flexibility and strong adhesion.

While regular roof coatings may offer minimal protection against the elements, waterproofing is specifically designed to create a water-tight seal, protecting the roof from leaks, corrosion, and rust.