Does anyone have experience with foam blown insulation for a home?

Question

We have a two-story, 2,000sqf home, 1950's, and judging by the draft coming through all of the electrical outlets, door jams, corner cracks, etc, I don't think there's any insulation left in it. I know how to take care of the outlets, but I've heard about the foam being blown in by a contractor. How many holes do they have to put in the wall to do that? What would prevent that foam from coming through cracks and into the house? Any idea on cost? Is this something that one can do-it-yourself?

Answer 1

Foam is not good on old homes..You should have cellulose blown in and it will take 2 hole every 16 inches per story.If it is a bungalo it is considered a 1 story. I have installed it in my 80 yr old house woorks great. It can be installed from the inside or outside. You can buy outlet insulaters at any lowes. menards or home repair store. It is a thin piece of foam that can be put behind outlet and will help a lot.
http://www.lowes.com/lowes/lkn?action=productDetail&productId=96193-1410-OS6H&lpage=none

Answer 2

I have blown in FirberGlass in my home and foam in the studs surrounding doors and windows. The house was insulated that manner when new because i was built to StarEnergy Requiremnts as set out by the US Dept of Energy

The blown in actually is much better than batts because it gets in around wires and pipes and leaves no holes to lose heat.

You can go to the StarEnergy site on Web and view info on both blown Firberglass and Foam, closed cell. It is a website that doesnt sell, its US govt and there for homeowners to view.