Originally Posted by brewstead
Try to find some local Insualtion shop and deal through them Home Deport and other shops like that wouldn't help even if they had that stuff they would rip you off. If you are having trouble finding a shop call up Local 47 Heat and Frost Insualtors and they should point you in the right direction.
Got to love you other union brothers, I.B.E.W. local 595 sparkie here forced to early retirement due to job related back injury. Love the medical coverage for myself and family.
Not to offend others getting off track here a bit.
That fire retardant expanding foam for floor to floor hole penetration seals in high rises that's approved by the fire marshal must mean something on the ability of the product preventing fire and smoke from passing thru to the upper floors. Not cheap but you get what ya pays for. JMO.