Du Bois Roofing | Roofing Services in Fremont, CA 94536

In Fremont, temperature fluctuations between warm days and cool nights can cause roof tiles to expand and contract, loosening the fasteners over time. Du Bois Roofing addresses this by conducting a thorough inspection to identify all compromised tiles. We then carefully re-secure or replace them using high-quality, weather-resistant fasteners designed for our local climate, ensuring a tight, durable seal that prevents future slipping and protects your roof deck.

Moss growth is common in Fremont due to moisture from fog and rain. We use a safe, professional-grade treatment that kills the moss at the root. Our technicians then gently remove the dead moss using low-pressure soft washing techniques, which effectively cleans the surface without damaging the protective granules on your shingles or tiles. We can also apply a preventative zinc-based treatment to inhibit future growth and protect your investment.

Absolutely. Moss holds moisture against the roof surface, and slipped tiles can expose the underlayment to the elements, both leading to potential wood rot. During our repair process for moss or tiles, we always inspect the underlying deck and underlayment. If we find any compromised areas, we'll replace the damaged sections with new, high-quality underlayment to restore a solid, watertight barrier before completing the visible repairs, ensuring your home is fully protected.