VertiStack™ Clear offers unique construction that allows this sectional door to stack above the ceiling, eliminating the need for overhead tracks. This door's modern design creates a seamless transition to outdoor spaces, filtering sunlight through the use of glass panels. VertiStack™ Clear is IECC-compliant for air infiltration, made to ease energy costs and reduces noise levels for a more peaceful environment. VertiStack™ Clear is the clear choice for the restaurant and hospitality industry, retail, educational facilities, office buildings and more.