NHIE Insulation and Ventilation Practice Exam

Cotton batts typically have an R-value of approximately 3.7 per inch. The R-value measures the thermal resistance of insulation; the higher the R-value, the better the insulation's effectiveness in resisting heat flow. Cotton batts, often made from recycled materials and considered a more eco-friendly option, provide decent insulation properties.

The value of 3.7 is recognized within the insulation industry for cotton batts, reflecting their ability to slow the transfer of heat, which is essential for maintaining energy efficiency in buildings. This characteristic, combined with their natural properties, makes them a popular choice in insulation applications. Understanding R-values is crucial for selecting appropriate insulation materials for optimal energy conservation and comfort in buildings.