Choosing between EPS, PU and PIR core often comes down to budget, insulation need and fire rating.
EPS suits general roofing and partitions at the lowest cost.
PU delivers the strongest insulation per inch, making it the standard for cold storage and food-grade cladding.
PIR is a fire-retardant version of PU, specified when a project's building code or client requires a higher fire rating.
For most warehouse and factory shed projects in Pakistan, 3-inch PU strikes a practical balance between cost and performance, while cold storage projects typically move to 4-inch PU or PIR..