jahsun365

The home was built in 1974. This substance may have been a retrofit, there is evidence of fiberglass insulation under it in some areas. Click to Enlarge 42.45 KBa

I need help identifying some attic insulation. The best way to describe it is that it looks like "snow". It is a fine white powder that is held together by some binding material in clumps until it is disturbed. Once distubed, it turns into a baking soda like powder mess and becomes airborne. It looks as if it was blown-in "wet" and was added on top of the existing fiberglass insulation that looks to be original to the house. Thanks in advance for any help.