I’m thinking about using glass blocks in a bathroom, but have been told that their insulating value is poor and that the bathroom will always be cold. Is this true? There must be some manufactured to provide a decent thermal layer.

Any ideas and/or comments would be greatly appreciated.


Comments

  1. R value 1.97 for the 4″
    R value 1.75 for the 3″

    why would this be less “insulative” than the best windows makes no sense. The biggest issue I have with standard alum windows is how conductive the metal is it brings in the cold. I wonder if the blocks do the same?