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retic

sun tunnel sky lights

13 years ago
what is the heat loss up through a sun tunnel light? do any manufacturers have statistics on this? would it be energy efficient in northern vt?
Velux Sun Tunnel Skylight · More Info

Comments (6)

  • PRO
    13 years ago
    Hello retic. Thanks for the question. VELUX SUN TUNNEL skylight products with a U factor of .55 or less meet Energy Star requirements for your zone. Here's a link to the testing performance data - the SUN TUNNEL skylight data is on the last page:

    http://dd1.domwebx.com/inet/techdocs.nsf/A21+Tech+Docs/297AADF69A7C22EE852576D200642424/$FILE/Tested%20Performance%20with%20Shades%20111512.pdf?openelement

    Look for the U-factor (U-value), which measures the rate of heat loss. Lower U-factors indicate better insulating properties.
  • 13 years ago
    Are the sun tunnel sky lights made with impact glass? I'm thinking of using them in our south FL home and want to be sure they'll stand up to hurricanes.
  • PRO
    13 years ago
    Yes, the VELUX TGF, TGR, TMF and TMR SUN TUNNEL Skylight models have impact ratings with polycarbonate domes
  • 13 years ago
    Can this be installed in a town home bathroom?
  • PRO
    13 years ago
    dinaswishlist - Yes, just as long as the bathroom has direct access to the roof/attic.