I have some idea what Cementious insulation is; but, HERE IS THE QUESTION: (1) I have 20' X 20' crawlspace (ONLY 18" high) below a 100+ yr old house-- there is air infiltration somewhere between rock wall foundation and sill---CAN I SPRAY THIS "cementitious" insulation on the interior of the wall foundation and up onto part of the sill & floor area? I believe spray-on application of this insulation can be done with a spray wand that is 4 or 5' long--- that would help me get close to wall (rememeber 18" high crawl space). By-the-way, I have tuck-pointed the exterior of the foundation wall. I need the name of some contractors or dealers in the Kansas City - Lawrence- Topeka, Kansas area. OR, if there are better solutions for my problem---bring em on! Thanks for any help. Jim.