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 in the course of the preliminary phases of residential constructing tasks. This course of is commonly carried out shortly after framing and sheathing are accomplished however earlier than inside partitions are erected. For instance, a builder would possibly select this technique to reinforce vitality effectivity in a newly constructed home.
This strategy provides benefits comparable to superior insulation R-value, air sealing to stop drafts, and potential discount in vitality consumption for heating and cooling. The observe has turn into more and more frequent as vitality codes have tightened and owners search extra environment friendly and cozy residing areas. Its adoption displays a rising consciousness of the long-term monetary and environmental advantages of optimized thermal efficiency in residential buildings.