Firestone Building Products released a new formulation of polyiso, the best performing insulation in cold temperatures. Firestone’s new formula offers the same high-performing insulating capabilities with even more added benefits. It’s equipped with the highest R-value per-inch in low temperature performance. At low temperatures (40 degrees Fahrenheit) competing polyiso boards may require additional thickness to achieve the same R-value of Firestone’s polyiso. For more information, visit or Booth #531.