Bob Weisner
10-29-2005, 10:20 AM
Hi:
Does anyone know what the r-value of glass block windows is?
Thanks,
Ken Garlock
10-29-2005, 10:31 AM
Hi Bob. A quick google lead me to a building products vendor that sells Pittsburg Corning glass blocks. The standard 4" thick block has an R value of 1.96, and the thinline 3" thick block is 1.75. Not exactly good, and less than 2" of wood.:(
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