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.
How much does spray foam insulation cost? Short answer: about 3x â 4x the cost of fiberglass insulation. But, spray polyurethane foam does something that standard fiberglass doesnât do, and thatâs provide a continuous air barrier. Keep in mind that the prices below are budgetary, and will vary job-to-job.