PIR panels — 49× more insulating than concrete. Made in Pakistan.
We manufacture ozone-friendly Polyisocyanurate (PIR) sandwich panels with thermal conductivity as low as 0.028 W/m·K, density 60 kg/m³, fire class B1, and a 50+ year service life — produced in our own factory on Multan Road, Lahore.
PIR sandwich panels are the building envelope behind virtually every modern cold storage facility, food factory, warehouse, and energy-efficient industrial building. Izhar Foster manufactures ozone-friendly PIR panels — described as "a revolutionary development in Pakistan" — and discontinued legacy polyurethane (PU) production years ago in favour of safer, more sustainable technology.
Thermal performance you can quantify
Insulating effect is approximately 49 times greater than concrete and 42 times greater than brick at equivalent thickness. Thermal conductivity is as low as 0.028 W/m·K. The result is roughly 30% savings on energy and maintenance over the building's life.
Environmental and safety
- Eco-friendly pentane blowing agent — zero ODP, no CFCs, no HCFCs
- Fire-resistant with flame-retardant properties
- Fire category B1 (foam B2) per ASTM E84 testing
- Non-hygroscopic — completely waterproof and moisture-proof
Construction advantages
- Lightweight yet structurally strong
- Panels available up to 50 feet long
- Core thickness up to 250 mm
- Self-assembly tongue-and-groove design reduces construction time and cost
- Lifespan exceeding 50 years
Technical specifications
| Property | Value |
|---|---|
| Thermal conductivity | ≤ 0.028 W/m·K |
| Density | 60 kg/m³ |
| Fire class | B1 (foam B2) — ASTM E84 |
| Compressive strength | > 300 kPa at 10% compression |
| Dimensional stability | < 1% |
| Asbestos content | None |
| Lifespan | 50+ years |
| Standard core thicknesses | 50 / 80 / 100 / 125 / 150 mm (up to 250 mm) |
Panel types
Wall panels: Vertical or horizontal installation with tongue-and-groove edges for tight, repeatable joints.
Roof panels: Unique surface design with capillary-action-preventing chambers for long-term weatherproofing.
Where pir sandwich panels are used.
Each application has different temperature, hygiene, and compliance demands. We've delivered for all of them.
Cold stores
Every cold room we build uses our own PIR panels
Food processing
Hygiene-friendly clean-room and processing-floor envelopes
Warehouses
Energy-efficient industrial warehouse construction
Reefer vehicles
Lightweight high-insulation panels for reefer trucks
Fire-rated rooms
Class B1 panels for sensitive industrial environments
Prefab buildings
Schools, offices, sports complexes, stadium structures
PIR Sandwich Panels — questions buyers ask.
The technical and commercial questions we hear most often before a contract is signed.