Two Roofs in One — OC Duration Harbor Blue and a Mule-Hide Low-Slope System After Storm Damage in Providence, RI

Like most Pinnacle roofing projects, the work was completed in a single day — minimizing disruption for the homeowner.

Wind damage gave this Providence home a fresh start, paid for by the owner’s insurance. The roof needed two different answers: Owens Corning TruDefinition Duration shingles in Harbor Blue for the steep main house, and a Mule-Hide self-adhering SBS modified bitumen system for the low-slope section — each material matched to the pitch it protects.

Scope of Work

After the storm claim was settled, the crew replaced the main roof with the full Duration system — underlayment, drip edge, starters, field shingles, ridge caps, and a rebuilt ridge vent — then switched trades entirely for the low-slope section, installing Mule-Hide’s self-adhering SBS modified bitumen membrane where shingles have no business being.

What We Installed (And Why)

Owens Corning TruDefinition Duration shingles are built around patented SureNail Technology — an engineered woven-fabric nailing strip embedded in the shingle that creates a reinforced fastener zone, with Triple Layer Protection where the fabric overlays the two shingle layers. In plain terms: the nail zone grips harder, exactly the property you want after watching wind peel a roof.

Harbor Blue is a bold, honest New England color — slate-blue granules that read maritime against white trim. Pinnacle is also a Mule-Hide Licensed Applicator, so the low-slope membrane carries certified installation just like the shingles above it.

Project Photo Gallery

The low-slope section got its own system: self-adhering modified bitumen.

Good To Know: Why do low-slope roof sections need different material?

Shingles shed water; they do not seal against it. Below about a 4-in-12 pitch, water moves too slowly — and can back up under wind — for shingles to protect the deck, which is why codes and manufacturers draw the line. Low-slope sections need a membrane system: self-adhering modified bitumen, fully bonded, sealing as a continuous sheet. Homes that mix pitches need contractors fluent in both languages; a shingle crew that shingles the flat part is writing a leak’s birth certificate.

Why This Approach Works

One storm, one claim, two correct systems. The steep roof got a wind-gripping shingle engineered for exactly this failure mode; the low slope got a real membrane. Matching material to pitch — and funding it properly through the insurance process — is what turns storm damage into a genuinely better roof.

Why Pinnacle

Pinnacle Roofing & Skylights is an Owens Corning Certified Installer, which means factory-verified installation standards on every Owens Corning roof we install. Steep and low-slope in one project, one crew, one warranty conversation. With more than 100 five-star Google reviews and an A+ BBB rating, our track record speaks for itself.

Providence, RI

Providence’s housing loves a complicated roof — main gables meeting porch roofs, additions running nearly flat, all on one deed. Storms find the transitions first. Pinnacle handles the whole assembly, from claim to ridge vent. See our Providence roofing page for more on how we serve the capital.