Looks like "Duct Tape" is effected by cold somewhat. Or is it just me.
Having 2 ducts extended with flex ducts to the enclosed porch, adding 3/4" more sub flooring and then Trafficmaster Allure, along with under floor insulation.
![Very Happy :D](./images/smilies/icon_biggrin.gif)
Just found your web site article mentioning Flex Mend. Thanks.