A constructing technique using a polyurethane or related compound utilized as a liquid that expands right into a inflexible foam, filling gaps and making a thermal barrier throughout the preliminary phases of residential constructing initiatives. This course of is usually carried out shortly after framing and sheathing are accomplished however earlier than inside partitions are erected. For instance, a builder may select this technique to boost power effectivity in a newly constructed home.
This strategy provides benefits resembling superior insulation R-value, air sealing to stop drafts, and potential discount in power consumption for heating and cooling. The apply has develop into more and more frequent as power codes have tightened and owners search extra environment friendly and comfy dwelling areas. Its adoption displays a rising consciousness of the long-term monetary and environmental advantages of optimized thermal efficiency in residential buildings.