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 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 reinforce power effectivity in a newly constructed home.
This strategy affords benefits akin to superior insulation R-value, air sealing to stop drafts, and potential discount in power consumption for heating and cooling. The observe has change into more and more widespread as power codes have tightened and householders 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.
