For decades, the unit skylight industry has looked much the same — acrylic domes sitting on curbs, offering daylight but often distorting views, aging quickly, and eventually leaking. That era is ending.

Crystal Structures and VTech have partnered to introduce a new standard in daylighting: the CMC Series Unit Skylight — a factory-sealed, glass-glazed, curb-mounted system that redefines performance, longevity, and aesthetics for commercial and residential applications alike.


From Cloudy Domes to Crystal-Clear Views

The CMC skylight replaces outdated acrylic domes with energy-efficient, Argon-filled dual glass. That means no more haze, yellowing, or glare — just a clear, open view to the sky.
Architects and building owners now get the elegance and clarity of true glass without sacrificing energy performance or durability.

Each unit is engineered with:

  • Hurricane-rated glass for superior impact resistance
  • U-factor of 0.38 and SHGC of 0.26 for impressive thermal control
  • Green Seal GS-13 compliance, ensuring eco-friendly materials and packaging

Molded to Perfection: Aliphatic Frame Technology

The innovation lies in the frame.
VTech’s proprietary aliphatic polyurethane frame is molded directly around the glass, creating a single, seamless bond. Unlike metal or composite frames with mechanical fasteners and sealant joints, this monolithic construction eliminates potential leak paths and delivers unmatched long-term performance.

The result?

  • Superior structural connection to any curb assembly
  • 20-year leak-proof warranty — transferable and all-inclusive
  • No exposed sealants to fail over time

Class B Fire Rating + Real-World Resilience

These skylights are Class B fire-rated, providing dependable performance even in demanding environments.
The heavy-duty frame and glazing system are built to resist UV, moisture, and thermal cycling — withstanding everything from hurricane winds to high-temperature roof assemblies.


Designed for Simplicity: Installation Made Easy

The Curb-Mounted Cap (CMC) system is engineered for quick, clean installation on new or existing curbs.
Available in standard 2×2, 2×4, 3×3, and 4×4 sizes, each skylight fits common framing dimensions and roof spacing patterns — reducing labor, complexity, and installation time.


Built for the Next Era of Daylighting

This collaboration between Crystal Structures Glazing and VTech Skylights brings together decades of glazing expertise with advanced material science — resulting in a skylight that looks better, lasts longer, and installs easier than anything in its class.

For architects, contractors, and building owners ready to move beyond acrylic domes, the CMC Series delivers a future-proof solution:
clearer, stronger, longer-lasting daylight.


Learn More & Specify

Crystal Structures Glazing
Contact: contactus@csglazing.net
Schedule a design consult: jsucher@csglazing.net
Explore products: www.crystalstructuresglazing.com