Skylight Performance Data

Sun Tunnel Performance Data

Testing Data Notes
  1. Production samples structurally tested and labeled in accordance with one or more of: AAMA/WDMA/ CSA 101/I.S.2/A440, TAS201, 202, and 203; OSHA regulations; various ASTM methods.
  2. Thermal and optical performance data are determined for skylights at 20 degree slope, and verified in accordance with NFRC procedures (where applicable) by accredited entities. Most VELUX products are listed in the NFRC Certified Products Directory, and carry appropriate labels in accordance with NFRC’s certification program. NFRC ID: VEL-N-xxx
  3. Most variants have achieved WDMA Hallmark certification under No. 426-H, and/or recognition under Uniform-ES report #ER 0199 (IAPM0-ES).

    In addition, Florida and TDI have listed most variants in their product evaluation/approval systems.