Forum: Insulation
February 7, 2008
Crawl space insulation recommendation
There have been a few posts here recently on insulation questions. I just had my crawl space insulated by Federal Conservation (631-264-7271) and I highly recommend them. They called right back after I left a message and called me practically every day updating me as to when they could come because the weather has been so bad.
I've got a pretty standard 20' X 50' brownstone with three skylights. They cut two holes in the roof and go in from there and blow in about 12" of insulation. The roof holes are then covered and vented. Vents are necessary for moisture and heat removal from the remaining space above the insulation. It was $2000 ($2 per sq. ft.) plus $200 for the two vents. They were great and cleaned up nicely afterwards including any stray bits that blew onto my neighbors property.
They told me that the side walls of attached brownstones really can't be insulated but that the front and rear walls are deep enough and that they typically drill a few holes in the plaster and fill them with expanding foam if I wanted to do that in the future.
Highly Recommended, very professional.