As a Home Inspector I have been seeing an occasional attic where the inner side of the roof sheathing has foam insulation sprayed on. There is no apparent ventilation. The attic space is essentially sealed, but there is no insulation between the living area and the attic space other than 5/8″ drywall. Although I have not yet seen a problem caused by moisture accumulation, unless I am missing something, it seems almost inevitable.
Any clues on where I might get info to read up on this or words of wisdom by those installing this type product would be appreciated.
Marshall in MN
Edited 2/7/2004 1:38:25 PM ET by Marshall in MN