Below you'll find a list of all posts that have been tagged as “r-value”
Quick Answer: Spray Polyurethane Foam has an R-value of 6.5 per inch of thickness. Most of the time, we install an average thickness of 1.5 inches over an existing roof, adding approximately an R-10 to the current roof’s R-value. If the roof must be torn off, we’d likely install around 4.5 inches, making the roof compliant with building codes by …
Quick Answer: If you don’t do a complete tear-off, there is no minimum R-value you need to hit. If you do, then each climate zone has its own minimum R-value requirement. In Ohio (as of February 2026), it’s an R-30. You may wonder whether there’s a specific R-value you need to meet to comply with building codes. The short answer …
Your commercial roof is your first line of defense to protect your facility from the weather; it can also play an essential role to insulate your building and regulate your energy costs. By choosing the right insulation and roofing for your building, you could save hundreds of dollars by cutting your energy bills. You can also create a proper roof …