In this video, we take a close look at thermal shock resistant polyurethane foam boards—rigid PUR/PIR closed-cell panels engineered to stay flat and keep insulating through repeated heating and cooling. You'll see how the closed-cell structure, low thermal conductivity, and high compressive strength translate into real-world performance for roofs, walls, floors, ducts, and tanks. We demonstrate dimensional stability under temperature cycling, waterproofing behavior, and proper installation with staggered joints and a continuous vapor barrier. Ideal for B2B buyers comparing insulation options for variable-temperature building and industrial projects.