PUR Sandwich Panels: Maximum Thermal Efficiency & Structural Strength
Rigid polyurethane (PUR) sandwich panels deliver the highest thermal resistance per millimeter of thickness (lambda 0.022 W/mK) with a 40 kg/m³ high-pressure closed-cell foam matrix. Completely impervious to water vapor absorption, PUR panels represent the global industry benchmark for industrial manufacturing plants, commercial logistics facilities and cold envelopes.
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Key Engineering & Commercial Benefits
Peak Thermal Efficiency (λ = 0.022)
1.7x higher thermal resistance than mineral wool, delivering identical energy savings with thinner wall profiles.
98% Closed-Cell Moisture Barrier
Closed-cell rigid foam structure eliminates vapor absorption and condensation risks across decades.
40 kg/m³ High Structural Rigidity
Forms a high-strength composite bond with steel facings, safely spanning wide purlin bays without deflection.
Custom Cut Continuous Lengths
Manufactured to precise project coordinates from 2m to 13.5m, eliminating overlap leaks and site trimming scrap.
Available Systems & Models
Select the optimal profile and core configuration for your building envelope requirements.
Roof sandwich panels with rigid PUR foam are designed with 3 or 5 ribs to deliver structural span rigidity, storm resistance and continuous thermal insulation for industrial, commercial and storage buildings. Produced continuously with customizable lengths to eliminate end-laps. The reinforced 5-rib geometric crown profile is fully certified for solar photovoltaic (PV) rooftop mounting rails without compromising envelope watertightness.
Standard PUR wall panels provide fast installation and dependable weather sealing for exterior walls and internal partitions in warehouses and production facilities.
Concealed-fix panels hide all fasteners within the joint tongue, creating clean architectural shadow lines, uniform facades and preventing water ingress at screw points.
Engineered with factory-embedded eccentric cam-locks or precision double labyrinth joints to ensure airtight seals, eliminating energy losses in cold rooms from +4°C down to -40°C.
Suspended ceiling panels equipped with aluminum T-profiles and thermal-break tie rods to support ceiling loads while preventing condensation and frost formation.
Engineered for harsh livestock environments where animal waste and ammonia gas quickly corrode standard galvanized steel. The inner FRP surface is non-corrosive and easily washable with high-pressure water.
Insulation Core & Performance Comparison
Compare lambda thermal conductivities, fire ratings, densities and ideal project usages.
| Model & System | Application | Profile / Rib | Density | Thermal Cond. (λ) | Key Advantage |
|---|---|---|---|---|---|
| SP-ROOF-PUR (Çatı Paneli) | Endüstriyel Çatı Kaplaması | 3 & 5 Hadveli Standart | 40 kg/m³ | 0.022 W/mK | Factory and logistics roofs, fully compatible with solar PV rails |
| SP-WALL-PUR (Vidalı Dış Duvar) | Fabrika Dış Cephe Kaplaması | Standart Vidalı Geçmeli | 40 kg/m³ | 0.022 W/mK | Rapid screw fixing, weather-sealed jointing and maximum insulation |
| SP-COLD-WALL (Soğuk Depo) | Kam Kilitli Soğuk Oda | Eksantrik Kancalı Kilit | 40 – 42 kg/m³ | 0.022 W/mK | Chilled cold rooms and deep freeze storage with cam-lock airtightness |
| SP-ROOF-AGRI (Zirai Asit Paneli) | Tavukçuluk & Asitli Tesis | CTP/FRP Alt Yüzeyli | 40 kg/m³ | 0.022 W/mK | Ammonia and acid resistant FRP bottom skin for poultry and livestock |
| PUR vs Taşyünü vs EPS | Isı Yalıtımı Kıyaslaması | B-s2, d0 Yangın Tepkisi | 40 kg/m³ | 0.022 W/mK | Industry standard: Highest thermal efficiency per mm of envelope thickness |
Thickness, U-Value, Weight & Logistics Matrix
Verify thermal resistance (R), permissible purlin spans and truckload volume per thickness.
| Thickness | Thermal Resistance (R) | Transmittance (U) | Dead Weight | Rec. Purlin Span | Truckload Capacity |
|---|---|---|---|---|---|
| 40 mm | 1.82 m²K/W | 0.55 W/m²K | 10.10 kg/m² | 2.00 metre | ≈ 1.350 m² / Tır |
| 50 mm | 2.27 m²K/W | 0.44 W/m²K | 10.50 kg/m² | 2.20 metre | ≈ 1.150 m² / Tır |
| 60 mm | 2.73 m²K/W | 0.37 W/m²K | 10.90 kg/m² | 2.50 metre | ≈ 1.000 m² / Tır |
| 80 mm | 3.64 m²K/W | 0.27 W/m²K | 11.70 kg/m² | 2.80 metre | ≈ 800 m² / Tır |
| 100 mm | 4.55 m²K/W | 0.22 W/m²K | 12.50 kg/m² | 3.20 metre | ≈ 650 m² / Tır |
| 120 mm | 5.45 m²K/W | 0.18 W/m²K | 13.30 kg/m² | 3.50 metre | ≈ 540 m² / Tır |
Critical Engineering Guidelines for System Selection
Standards for purlin spacing, live loads, fire containment and joint detailing.
1. Ultra-Low Thermal Conductivity (λ = 0.022 W/mK) & Energy Savings
PUR core provides 1.7 times higher thermal resistance than rockwool. A 50mm PUR panel matches the insulation value of an 85mm mineral wool panel, conserving interior usable floor area.
2. 98% Closed-Cell Matrix & Zero Water Vapor Permeability
Manufactured via high-pressure injection, PUR rigid foam exceeds 98% closed cells, completely resisting water absorption, mold growth and performance degradation.
3. Exceptional Steel Adhesion & Monolithic Composite Strength
Polyurethane bonds chemically to galvanized coil skins during foaming, forming a unified structural beam with superior wind uplift resistance.
4. Climate Zone Sizing per Thermal Engineering Codes
For coastal zones, 40-50mm PUR suffices. Moderate continental zones require 50-60mm, whereas severe cold environments mandate 80mm to satisfy building energy regulations.
5. B-s2, d0 Reaction to Fire & Industrial Code Compliance
Rated Class B-s2, d0 under EN 13501-1, PUR panels prevent flame propagation and avoid flaming droplets (d0), making them standard for industrial envelopes.
6. Solar PV Rooftop Integration & Bearing Capacity
5-rib PUR roof profiles easily interface with clamp-on solar PV mini-rails without roof penetrations, securely transferring dead loads to structural purlins.
Matching Flashings, Screws & Trims Package
Coordinated single-delivery guarantee: Color-matched flashings, EPDM fasteners, and covings.
3 & 5 Rib Ridge Cap
Form-bent ridge cap ensures absolute weather tightness across roof crown joints.
Eave & Gutter Trims
Directs high-volume roof rainwater into external gutter systems cleanly.
Fasteners with EPDM Saddles
Crest-fixed saddle screws deliver leak-proof structural grip on steel purlins.
Corner Angle & Base Flashing
Neatly trims wall base and corner perimeters for airtight thermal envelope.
Polyurethane Joint Sealants
Eliminates microscopic air and vapor leaks across interlocking joints.
Corrugated Eaves Foam Fillers
Fills rib voids beneath ridge and eave lines to prevent wind and dust infiltration.
Panel Quantity & Logistics Calculator
Roof & Wall Sandwich Panel Quantity & Logistics Calculator
Define your building dimensions and scope (Roof, Wall or Complete Envelope) to estimate net surface area, tonnage, logistics and budget.
Frequently Asked Technical Questions
Detailed engineering answers on pricing, fire codes, installation spans and delivery.
What is the primary advantage of PUR sandwich panels?
What is the difference between PUR and PIR sandwich panels?
Do PUR sandwich panels absorb moisture or water?
What PUR thickness is standard for factory roofs?
Are PUR roof panels compatible with solar PV installations?
How many square meters of PUR panels fit in a truckload?
What is the recommended purlin spacing for PUR roof panels?
How are continuous cut lengths ordered without waste?
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