1 The backslash divides the file name from the path to it, and one directory name from another directory name in a path. 2  You cannot use a backslash in the name for the actual file or directory because it is a reserved character that separates the names into components.
1 Open-cell spray foam costs $.40 to $.70 per board foot. 2  Closed-cell spray foam costs $.75 to $1 per board foot. 3  Expressed in terms of square feet, spray foam installation cost is $1.50 to $3.00 per square foot (for an average-sized home between 2,000 to 2,500 square feet, thatâs a total cost of $3,000 to $7,500.pray Foam Insulation Prices. While the function of spray foam insulationâto keep buildings warm during cold weather and cool during warm weatherâis the same as traditional pink fiberglass insulation, thatâs where the similarities between the two materials end.
The advantage of spray foam insulation that immediately grabs most people's attention is the savings. Although it costs up to three times more to initially install, the long term savings associated with foam insulation far out way any cost differences.pray foam insulation appeals to contractors due to the time it saves. One application is all that is required in order to seal and insulate. And, since, it does not settle, there is no need to re-apply. Improved air quality and noise reduction are two other benefits that accompany spray foam insulation.