[Greenbuilding] insulated gypsum board

[David Bergman]

I'm looking to add some R value to the interior face of an existing 
masonry and plaster wall (an old loft building) without adding 
significant thickness to the wall. Is there such a thing as insulated 
gypsum board? Or another paintable finished material that could be 
laminated onto the existing plaster?

Adding more than 1/2" or so of depth to the wall will create 
difficulties with existing window moldings, etc.

Thanks,

David
DAVID BERGMAN ARCHITECT / FIRE & WATER LIGHTING + FURNITURE
architecture . interiors . ecodesign . lighting . furniture
bergman at cyberg.com    www.cyberg.com
241 Eldridge Street #3R, New York, NY 10002
t 212 475 3106    f 212 677 7291