Expandable Polystyrene Sandwich Roof Panel

Thermal Insulation

Featuring low thermal conductivity of approximately 0.038‑0.043 W/(m·K), it effectively minimizes heat transfer and maintains stable indoor temperatures.

High Cost‑Performance

It delivers excellent cost‑efficiency with low costs for raw materials, transportation and on‑site installation.

Lightweight

Weighs around 10 kg/㎡, far lighter than conventional roofing materials. It lowers the building’s overall dead load, cutting expenses for foundations and structural systems.

Easy Installation

Adopting plug‑in or splice‑joint assembly for fast‑track construction, which significantly shortens project timelines. Panels can be freely cut for convenient on‑site fitting and adjustment.

High Mechanical Strength

Composed of high‑strength steel facers bonded with an EPS core, the panel offers favourable bending and compression resistance to sustain specified roof loads.

Fire‑Resistant Performance

Both facings and core material can be configured as non‑combustible options to satisfy relevant fire‑safety standards, with an oxygen index normally reaching 32.0 or higher.

Aesthetic Appeal & Long Service Life

Available in diverse colours and sharp clean profiles to satisfy varied architectural design requirements. The panels resist fading for 10‑15 years. With anti‑corrosion repainting every decade, the service life can extend beyond 35 years.

Sound Insulation

Superior sound‑insulating capacity blocks outside noise and helps create a relatively quiet indoor environment.

Eco‑Friendly Properties

EPS core material is recyclable, and no hazardous substances are emitted throughout its service life.

Allowable vertical load and heat transfer coefficient of PROPANEL EPS sandwich roof panel  (allowable deflection f ≤ L/240)

EPS roof sandwich panels are widely adopted for diverse construction applications, ranging from prefabricated mobile board houses, large‑volume warehouses and clean‑room workshops to medical‑care facilities. Thanks to their outstanding thermal insulation, easy installation and cost‑effective features, they are well‑suited for both temporary and permanent building projects.