Metal Sandwich Panel Systems: Roof, Wall & Cold Storage Solutions
Metal sandwich panels are advanced composite building envelope elements combining rigid thermal insulation cores with high-strength coated steel facings. SerPan Metal coordinates complete panel systems tailored to structural purlin spans, climatic thermal insulation targets (TS 825), strict fire safety regulations, and zero-waste custom cut lengths up to 13.50m.
* All prices EXW Factory excluding VAT.
Key Engineering & Commercial Benefits
All-in-One Thermal, Water & Acoustic
Combines superior insulation, moisture barriers and noise attenuation in a single, fast installation phase.
20% Structural Steel Weight Savings
Lightweight composite design allows downsized steel framing, trusses and purlins, cutting overall steel tonnage.
A1 Non-Combustible & FM Global Safety
Tailored fire safety options ranging from A1 stone wool to FM-approved low-smoke B-s1, d0 PIR cores.
Zero-Waste Continuous Cut Lengths
Manufactured to precise site cutting lists up to 13.50m, completely eliminating transversal joint scrap.
Panel Systems by Application
Roof Sandwich Panels
3 & 5 rib profiles, solar PV mount compatibility, span tables and membrane terrace roofs.
Wall & Facade Panels
Standard through-fix, architectural secret-fix and 120-min A1 rockwool firewalls.
Cold Storage Panels
Cam-lock airtight panels, ceiling suspension, floor plywood and insulated doors.
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.
PIR foam offers enhanced cross-linked molecular bonds that char upon exposure to heat, suppressing flame spread while maintaining peak thermal insulation. Flame-retardant PIR core paired with high-moment 5-rib crown geometry makes it the premier insurance-approved choice for rooftop solar PV installations.
Rock wool panels feature high-density mineral wool fibers positioned perpendicular to metal faces. Engineered for high-risk industrial facilities, transformer rooms and sound-insulated enclosures.
EPS panels deliver the most economical insulation alternative for light industrial roofs, modular containers and prefab structures without compromising basic weather protection.
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.
Combines structural steel, high-efficiency insulation and durable waterproofing membrane in one prefabricated product, eliminating on-site layer-by-layer assembly.
Standard PUR wall panels provide fast installation and dependable weather sealing for exterior walls and internal partitions in warehouses and production facilities.
Engineered with an isocyanurate chemical ring structure that chars on flame contact without dripping, PIR wall panels satisfy stringent building code and industrial insurance (FM Global) requirements.
Concealed-fix panels hide all fasteners within the joint tongue, creating clean architectural shadow lines, uniform facades and preventing water ingress at screw points.
Manufactured with vertically oriented high-density rockwool basalt slabs (100 kg/m³) to deliver structural stability, acoustic damping, and Class A1 non-combustible fire resistance up to EI 120. Ideal for industrial firewalls, hazardous storage, petrochemical plants, and building envelopes requiring official fire department accreditation.
EPS wall sandwich panels offer the most budget-friendly envelope solution for modular container camps, temporary construction offices, partition walls, and prefabricated housing.
Tailored Project Cuts & Specifications
Need custom lengths up to 13.50m, heavy-gauge steel or specialized coatings? Send your structural drawings for an instant engineering takeoff and competitive factory pricing.
Insulation Core & Performance Comparison
Compare lambda thermal conductivities, fire ratings, densities and ideal project usages.
| Insulation Core | Thermal Cond. (λ) | Fire Reaction | Density | Moisture Resist. | Best Application |
|---|---|---|---|---|---|
| PUR (Poliüretan) | 0.022 W/mK | B-s2, d0 | 40 kg/m³ (±2) | Çok Yüksek (%98) | Standard factories, logistics warehouses, commercial roofs/walls |
| PIR (Poliizosiyanürat) | 0.022 W/mK | B-s1, d0 (FM) | 40-42 kg/m³ | Çok Yüksek (%98) | Insurance-sensitive facilities, data centers, chemical storage |
| Taşyünü (Rockwool) | 0.038 W/mK | A1 Sınıfı | 100-110 kg/m³ | Su İtici Katkılı | High fire risk industries, acoustic insulation walls, boundary firewalls |
| EPS (Strafor) | 0.035 W/mK | E Sınıfı | 16-20 kg/m³ | Orta Derece | Temporary site camps, low-cost modular shelters, agricultural sheds |
Thickness, U-Value, Weight & Logistics Matrix
Verify thermal resistance (R), permissible purlin spans and truckload volume per thickness.
| Core & Thickness | Fire Reaction | Transmittance (U) | Dead Weight | Rec. Purlin Span | Truckload Capacity |
|---|---|---|---|---|---|
| 50 mm PUR (λ=0.022) | B-s2, d0 | 0.44 W/m²K | 10.50 kg/m² | 2.00 – 2.20 m | ≈ 1.150 m² / Tır |
| 50 mm PIR (FM Onaylı) | B-s1, d0 | 0.44 W/m²K | 10.60 kg/m² | 2.00 – 2.20 m | ≈ 1.150 m² / Tır |
| 50 mm EPS (Ekonomik) | E Sınıfı | 0.70 W/m²K | 9.80 kg/m² | 1.50 – 1.80 m | ≈ 1.250 m² / Tır |
| 50 mm Taşyünü (A1) | A1 / EI30 | 0.76 W/m²K | 15.50 kg/m² | 1.80 – 2.00 m | ≈ 1.000 m² / Tır |
| 100 mm PUR (λ=0.022) | B-s2, d0 | 0.22 W/m²K | 12.50 kg/m² | 2.80 – 3.20 m | ≈ 650 m² / Tır |
| 100 mm Taşyünü (A1) | A1 / EI120 | 0.38 W/m²K | 21.00 kg/m² | 2.50 – 2.80 m | ≈ 520 m² / Tır |
Critical Engineering Guidelines for System Selection
Standards for purlin spacing, live loads, fire containment and joint detailing.
1. Insulation Thickness Selection per Climatic Zones
Panel thickness must comply with regional climatic standards. While 40-50mm PUR suffices for warm Mediterranean/coastal zones, colder continental zones demand 60-80mm PUR/PIR or 80-100mm Rockwool to prevent condensation and satisfy thermal performance directives.
2. Custom Continuous Cut Lengths (2.00m – 13.50m) & Cost Savings
Panels are manufactured to millimetric custom project lengths. Eliminating transversal overlaps prevents water leak vulnerabilities, cuts site assembly labor by up to 40%, and eradicates scrap waste. Standard transport limits are 13.50m for road trailers and 40ft HC shipping containers.
3. Steel Gauges and Protective Coil Coating Options
Standard specification features 0.50mm outer and 0.40mm inner DX51D+Z galvanized steel. For severe industrial or marine environments, 0.60mm gauges and specialized PVDF (25µm), Plastisol (100-200µm) or Food-Safe PVC laminates ensure maximum corrosion durability.
4. Comparative Engineering Analysis of 4 Insulation Cores
PUR delivers peak thermal efficiency (0.022 W/mK). PIR matches this thermal performance with B-s1, d0 low-smoke fire safety. Rockwool is A1 non-combustible with acoustic absorption, though twice as heavy. EPS provides lightweight cost efficiency for modular structures.
5. Static Load & Purlin Span Engineering Optimization
Panel selection must reconcile snow live loads, wind suction, and purlin spans. 5-rib roof panels safely bridge 2.00-2.50m purlin spacings, whereas 3-rib profiles require tighter 1.50m spacing under equivalent loads.
6. Trailer and Container Freight Logistics Management
While foam panels (PUR/PIR/EPS) cube out road trailers at 1,150-1,400 m², heavy rockwool panels reach legal weight limits (26 tons) at 500-1,000 m². Coordinated freight schedules optimize haulage costs.
Matching Flashings, Screws & Trims Package
Coordinated single-delivery guarantee: Color-matched flashings, EPDM fasteners, and covings.
Ridge Caps (Top & Ventilated)
Seals roof apex joints against storm-driven rain and wind infiltration.
Eave Flashings & Gutters
Safely channels rainwater discharge into external drainage gutters.
Self-drilling Screws with EPDM
EPDM bonded washer fasteners ensure watertight structural fixation to purlins.
Corner & Base Drip Flashings
Hermetically seals wall corners and base foundation perimeter joints.
Foam Closures & Eave Fillers
Blocks dust, airborne moisture, wind suction and bird nesting in rib voids.
Base Galvanized U-Channel
Aligns wall panel bases on level concrete kerbs with precision.
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 determines the square meter price of sandwich panels?
What is the difference between PUR and PIR sandwich panels?
What is the maximum manufacturing length for sandwich panels?
Which sandwich panel must be selected for fire code compliance?
What is the recommended purlin spacing for sandwich panels?
How many square meters of sandwich panels fit in a truckload?
Do sandwich panels require ongoing maintenance?
How are custom continuous cut lengths ordered without waste?
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Share your project drawings or quantity takeoffs; our engineering team will provide a comprehensive commercial offer within 2 hours.