What is the initial R-value of Polyisocyanurate and polyurethane insulation per inch?

The initial R-value of Polyisocyanurate and polyurethane insulation per inch is indeed around R-6. This value reflects the thermal resistance of these materials, making them efficient insulators in various applications.

Understanding the R-value is crucial for assessing the effectiveness of insulation. The R-value indicates how well a material resists heat flow; thus, a higher R-value means better insulating properties. Polyisocyanurate and polyurethane are known for their high performance in insulation applications, which is why they typically provide around R-6 per inch of thickness. This high initial R-value is one of the reasons these materials are favored in both commercial and residential building projects, contributing to energy efficiency and temperature regulation within structures.

Knowing this helps in selecting the right insulation material for various building scenarios, allowing for energy-efficient designs and compliance with building codes that specify minimum R-value requirements for insulation.