On Sun, 12 Sep 2004 03:03:33 +0000, TP wrote:

Insulated a new addition crawl space. Code only calls R10 (upstate NY). I
see rolls of this white material used in new home construction. 4'x50'
rolls, white vinyl with fiberglass against the CMU wall. I have also seen
R19 un-faced fiberglass up against CMU wall. The R19 (pink is a bit
cheaper sq ft) than the R10 vinyl faced. But what is the best way to
insulate a crawl space 5 CMU block in height?

Is there some reason you wish to heat your crawl space? By insulating the
outside walls you are, in effect, heating the crawl space. Unless there
is some pressing reason not to, IMO it is better to insulate at the floor
joists.