ROYALITE SKYLIGHTS ARE CUSTOM DESIGNED AND FABRICATED TO MEET JOB SPECIFIC AND OFTEN UNIQUE DESIGN AND ARCHITECTURAL REQUIREMENTS. THEY MEET OR EXCEED MOST NFRC AND Energy Star PERFORMANCE CRITERIA AS WELL AS ICC MANUFACTURING STANDARDS. Structural Calculations are available along with job specific Shop Drawings and energy performance documentation on request. Our custom fabricated and site built skylights do not lend themselves to the type of testing or documentation designed for mass-produced units and are therefore not certified since certification requirements are not applicable.