Our Vinyl Curb Mount Fixed Flat Glass Skylights offer a clean appearance and reliable construction for long-term use. An aluminum stiffener is placed inside the frame on units over 22 ¼" I.D. to increase strength and reduce frame movement. The glazing system uses silicone at the pedestal gasket for a more positive seal, helping support lasting performance. Designed with moisture and air control in mind, this vinyl skylight line helps minimize water and air infiltration while providing a durable fixed skylight solution.