| Product type | PUR insulated metal sandwich panel | A lightweight, factory-made building panel consisting of rigid polyurethane insulation bonded between protective metal facings. |
| Core insulation | Rigid polyurethane foam (PUR) | Provides continuous thermal insulation and helps reduce heat transfer through walls, ceilings, and enclosures. |
| Typical core density | Approximately 38–45 kg/m³ | The final value should be confirmed from the approved technical datasheet because density affects thermal, mechanical, and fire performance. |
| Thermal conductivity | Typically about 0.022–0.028 W/m·K at initial laboratory conditions | The design U-value depends on panel thickness, joint design, ageing, temperature, and installation quality. |
| Common panel thicknesses | Approximately 40, 50, 75, 100, 120, and 150 mm | The required thickness should be selected according to the indoor temperature, local climate, energy target, and condensation-control requirements. |
| Metal facing | Pre-finished galvanized or coated steel; commonly about 0.40–0.60 mm per face | The coating and steel grade should be chosen for the expected humidity, chemical exposure, cleaning method, and corrosion category. |
| Panel connection | Interlocking or cam-lock-type concealed joint, subject to the selected construction system | Correct engagement, sealant continuity, and fastener placement are essential for airtightness, moisture control, and thermal performance. |
| Primary installation uses | Cold rooms, temperature-controlled rooms, food-processing areas, warehouses, workshops, and modular buildings | Suitable where fast enclosure, low heat transfer, hygienic surfaces, and reduced structural dead load are required. |
| Suitable wall applications | Internal partitions and external walls, subject to structural design | External use requires appropriate support spacing, wind-load verification, weather sealing, and compatible flashing details. |
| Ceiling and roof use | Ceilings and lightweight roof systems where the profile and span are approved for the load | Panels must not be used as a walking surface unless specifically designed and protected for that purpose. |
| Recommended service temperature | Approximately −40°C to +80°C for typical PUR panel applications | Actual limits depend on the foam formulation, facing, joint sealants, exposure duration, and applicable fire or building requirements. |
| Humidity conditions | Suitable for normal indoor humidity and controlled high-humidity areas when joints are sealed | Continuous exposure to standing water, saturated insulation, or unsealed edges should be prevented. |
| Chemical exposure | Generally compatible with mild detergents and many common indoor environments | Strong acids, alkalis, solvents, chlorinated chemicals, and aggressive disinfectants may damage the coating or sealants and require compatibility testing. |
| Fire performance | Project-specific; must be verified through tested classification and approved system details | PUR is combustible. Fire resistance, reaction-to-fire classification, joint design, and permitted building height must be confirmed before specification. |
| Installation substrate | Level, plumb, load-capable steel, concrete, or compatible framing system | Irregular supports can create open joints, panel stress, visible distortion, and reduced airtightness. |
| Installation sealing | Closed-cell gasket, approved sealant, or vapor-control tape at joints and penetrations | Seal all perimeter joints, corners, doors, service penetrations, and panel cut edges to limit air leakage and condensation. |
| Fasteners and accessories | Corrosion-compatible fasteners, flashings, trims, corner profiles, and approved sealants | Fastener type and spacing must be calculated for panel weight, wind pressure, support spacing, and local construction regulations. |
| Handling and storage | Store level, dry, ventilated, and protected from impact and prolonged direct sunlight | Use suitable lifting equipment, avoid dragging panels, and keep protective film away from excessive heat until installation is complete. |
| Routine cleaning | Soft cloth or soft brush with clean water and a mild, pH-neutral detergent | Rinse thoroughly and dry after cleaning. Avoid abrasive pads, wire brushes, and high-pressure spray directed at joints. |
| Inspection interval | Visual inspection at least every 6–12 months; more frequently in harsh environments | Check for corrosion, dents, coating failure, open joints, damaged sealants, water staining, and loose or missing fasteners. |
| Repair requirements | Repair damaged coatings promptly and replace panels with crushed, wet, or exposed insulation | Use compatible touch-up coatings and sealants. Do not conceal moisture damage without identifying and correcting its source. |
| Condensation control | Maintain continuous insulation, airtight joints, and suitable room ventilation | Condensation risk increases when warm, humid air reaches cold surfaces through gaps, damaged facings, or unsealed penetrations. |
| Key limitations | Not a substitute for structural, fire, or hygienic design calculations | Final selection must consider local codes, fire strategy, span and load calculations, environmental exposure, and the approved installation method. |