Like most Pinnacle roofing projects, the work was completed efficiently — minimizing disruption for the property owner.
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A commercial building on Child Street in Warren gets much of its interior daylight from the roof, so when the low-slope membrane was addressed, the rows of dome skylights had to be set and sealed to match. Pinnacle installed the dome units across the flat roof so daylight pours into the space below while the membrane stays completely watertight.
Scope of Work
On a flat commercial roof the skylights and the membrane are one continuous water-management job, so the crew worked them together: prepare and curb each opening across the low-slope deck, set the dome skylight units in their rows, then flash each curb into the surrounding EPDM membrane so every base is sealed as its own detail. The aerials show the finished grid of domes running clean across the roof. See our skylights page for more.
What We Installed (And Why)
This building received rows of dome skylights set into its low-slope roof — the standard daylighting solution for larger commercial and industrial spaces, where overhead domes light a big floor plate far more evenly than windows ever could. Each unit sits up on a curb above the membrane plane so water drains around it rather than pooling against it.
The critical work is the flashing where each curb meets the EPDM membrane. The crew wrapped and sealed every base into the surrounding rubber so the skylights and the roof act as a single watertight surface, with no seam left for wind-driven rain or standing water to exploit. On a flat roof that carries this many penetrations, that curb-and-flashing discipline — repeated identically dome after dome — is exactly what keeps a heavily-glazed commercial roof dry.
Project Photo Gallery
Good To Know: How are skylights kept watertight on a flat commercial roof?
The secret is the curb. Each dome is raised on a curb above the membrane so water drains around the unit instead of sitting against it, and the base is then flashed directly into the roof membrane — here, EPDM — so it becomes a sealed part of the roof surface rather than a hole through it. Do that consistently at every opening and even a roof lined with dozens of domes stays completely watertight through rain, snow, and ponding.
Why This Approach Works
On a low-slope roof there’s no gravity to help, so every penetration has to be sealed on its own. Curbing each dome above the membrane plane and flashing its base directly into the EPDM turns dozens of separate openings into one continuous watertight surface. Handling the skylights and the membrane with one crew also removes the finger-pointing that happens when a roofer and a glazier work a roof separately — one team owns the whole watertight envelope. Treating the skylights and the roof membrane as a single system, rather than domes dropped onto a finished roof, is what lets a building bring in abundant daylight without trading away a dry interior.
Why Pinnacle
Pinnacle installs skylights as a VELUX 5-Star Skylight Specialist, and we pair that with genuine low-slope commercial expertise under RI Commercial License #261 — the right combination for setting and flashing dome units into a membrane roof. Serving Rhode Island since 2012 with a 5.0-star Google rating, 100+ five-star reviews, and a BBB A+ rating, we give building owners daylight and a watertight roof from one accountable crew.
Warren, RI
Warren is a compact, historic East Bay town where old mill and manufacturing buildings mix with a lively downtown along the Warren River. Many of those larger commercial structures rely on roof-mounted domes to daylight their interiors, making skylight-and-membrane work a natural fit here. Pinnacle is proud to serve commercial property owners across Warren with roofing and skylights built to last.
Need a skylight estimate in Warren? Use our instant estimate tool, book a free appointment, or call us today.
Storm damage? See storm damage restoration — we handle the insurance process with you.
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