The types segmentation of the PUF Insulated Sandwich Panels market categorises products according to core material composition and panel configuration, each impacting the aggregate market size through distinct cost structures and performance attributes. Rigid polyurethane foam cores dominate, capturing the majority of volume due to their optimal balance of low thermal conductivity, compressive strength, and cost‑effectiveness, thereby driving the bulk of market revenue. Flexible foam cores occupy a smaller niche, valued in applications requiring enhanced vibration damping and impact resistance, which adds a premium segment to the market. Hybrid cores, combining polyurethane with other insulating materials such as phenolic or mineral wool, address specialized fire‑rating and acoustic requirements, contributing a modest but growing share as regulatory standards tighten. Pre‑finished panels with factory‑applied facings (e.g., metal, composite) command higher margins, reflecting added value in aesthetics and weatherability. Finally, custom‑engineered panels—tailored thickness, density, or integrated services—represent a high‑value, low‑volume segment that supports bespoke projects and influences overall market elasticity. Together, these type categories delineate the structural and financial contours of the PUF insulated sandwich panels market.