QTS NAL1 DC1 Building 1, located in New Albany, Ohio, stands as a groundbreaking example of high‑performance roofing innovation with Sika. As the first structure in a two‑building masterplan, the facility establishes a new benchmark for data center construction, integrating advanced roofing technology with the demanding requirements of mission‑critical infrastructure. The 240,000‑square‑foot building includes both office space and a three‑zone data center complex, designed to support exceptional uptime, long‑term reliability, and scalable growth within one of the country’s fastest‑expanding technology corridors.
Cotterman & Company Construction was selected to deliver the roofing scope for this highly technical and highly visible project. Working in close collaboration with Whiting‑Turner, QTS, and Sika’s technical team, Cotterman & Company implemented a fully engineered roof system designed to exceed the stringent performance expectations of large‑scale digital infrastructure. Every component of the assembly was Sika‑specified and Sika‑approved to ensure complete compatibility and long‑term system integrity.
From the structural metal deck upward, the system included a 5/8‑inch gypsum coverboard, a torch‑applied vapor barrier, two layers of 2.6‑inch ISO insulation, a wire mesh leak detection system, a 5/8‑inch ultralight coverboard, and a fully adhered 72‑mil white G 410 Sarnafil PVC roofing membrane. Several hundred feet of integral expansion joints and several thousand feet of metal coping were incorporated to accommodate building movement and ensure perimeter durability across the expansive footprint.
The project’s scale, complexity, and mission‑critical nature required precise coordination, custom detailing, and rigorous quality assurance throughout construction. QTS NAL1 DC1 Building 1 ultimately reflects the highest levels of technical excellence and partnership among QTS, Sika, Whiting‑Turner, and Cotterman. With its innovative system design and meticulous execution, the facility sets a new national standard for Sika’s roofing & waterproofing on critical infrastructure.
Sika Solutions Utilized: Sarnafil
