Roofing Supply Inc-Rsi | Roofing Services in Kailua Kona, HI 96740

For the black algae stains common on Kona roofs, we recommend specific cleaning solutions designed for your roofing material—like shingle-safe, zinc-based washes. We also carry preventative strips or granules that inhibit future growth. It's important to use the right product to avoid damaging your roof. Stop by, and we can help you choose based on your roof type and the severity of the stain.

Gutter overflow is often due to clogs from leaves, debris, or improper sizing. We supply high-capacity gutters, durable downspouts, and effective gutter guards designed for our local foliage. Ensuring your system is correctly sized and installed is key to handling our intense downpours. We can help you assess your current setup and find the right materials to improve water flow and protect your home's foundation.

We recommend a visual inspection at least twice a year—ideally before and after our wetter seasons. Look for signs of algae darkening, moss growth, sagging gutters, or granules in your downspouts. Catching problems early with regular checks can prevent costly repairs. If you're unsure what to look for, we're happy to provide a simple checklist or recommend a trusted local roofer for a professional assessment.