Sandwich Panels vs. Built-Up Trapezoidal Sheets: Which to Specify?
Comprehensive comparison of composite panels versus site-assembled double skin systems on installation speed, thermal bridging, and crane costs.
Coordinated supply of roof & wall sandwich panels, cold storage systems, profiled trapezoidal steel sheets and galvanized C/Z purlins. Direct export packaging and container stuffing worldwide.
Complete coordinated building envelopes: Insulated panels, color-matched trims, fixings and galvanized purlins packaged together.
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.
Engineered for sloped industrial, commercial and agricultural roofs, our 3 and 5 rib roof sandwich panels deliver exceptional structural span rigidity against heavy snow and wind suction loads. With reinforced trapezoidal crowns designed for solar PV clamps and overlapping joints with factory-applied butyl sealants, SerPan Metal guarantees lifetime watertightness with custom lengths up to 13.50m.
Our wall and facade sandwich panel systems combine premium architectural aesthetics with high thermal performance. Available in standard through-fix (W) and concealed-fix (WM / secret-fix) configurations, they accommodate horizontal and vertical orientations with micro-ribbed or flat surface options, backed by 120-minute A1 rockwool fire barriers.
Cold room panels demand total thermal bridge elimination, airtight eccentric cam-lock or double-labyrinth joints, and food-safe antibacterial surfaces. From +15°C processing rooms to -40°C blast freezers, SerPan Metal supplies complete cold storage packages including ceiling suspension gear, floor plywood, insulated sliding/hinged doors and curved PVC covings.
Rock wool insulated sandwich panels feature high-density basalt stone mineral wool fibers (100-110 kg/m³) oriented perpendicular to steel facings. Certified A1 non-combustible under EN 13501-1, they deliver up to 120 minutes of fire barrier performance (EI120) with exceptional acoustic sound dampening (up to 35 dB). Engineered specifically for fire-risk industrial plants, chemical storage, boundary firewalls, transformer stations and acoustic auditoriums.
EPS (Expanded Polystyrene) sandwich panels offer the most economical and lightweight building envelope solution in modern industrial construction. Imposing minimal dead load (only 9.5 – 12 kg/m²) on primary steel structures, EPS panels cut structural steel tonnage requirements while eliminating crane dependency with effortless manual handling. Engineered for fast-track site mobilization, prefabricated office/accommodation containers, agricultural sheds, dry storage warehouses and interior partition walls, they deliver unmatched cost-to-performance efficiency with continuous custom cut lengths.
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.
PIR (Polyisocyanurate) sandwich panels represent an advanced chemical evolution of polyurethane. Upon flame exposure, the isocyanurate ring structure decomposes into a self-protecting char layer that isolates the core and suppresses smoke generation. Certified B-s1, d0 and compliant with FM Global standards, PIR is the premier choice for insurance-critical industrial infrastructure.
Profiled steel sheet projects perform best when sheet gauge, coating, span, support spacing, drainage and fixings are engineered as one continuous building envelope package.
Secondary structural steel profiles and flashings determine site assembly speed, alignment precision and weather tightness. We coordinate custom-punched purlins with flashings and fixings.
Explore our high-definition project gallery featuring industrial roof panel assemblies, RAL 7016 secret-fix facade cladding, cam-lock cold storage facilities, and overseas export container stuffing.
Direct factory export coordination with custom continuous lengths up to 13.50m stuffed into 40ft High Cube sea containers or road trailers. Full customs compliance (ATR/EUR.1) across 30+ countries.
Procuring insulated panels, profiled sheets, purlins and flashings separately from disparate suppliers creates compatibility mismatches, delivery delays, transit damage and expensive site scrap.
SerPan Metal coordinates the complete building envelope around your architectural drawings and quantities. We match span tables, insulation core properties (PIR/Rockwool), purlin spacing and complementary trims into one unified, export-ready procurement line.
Millimeter-accurate production from 2.00m up to 13.50m. Eliminate cutting scrap on site, reducing crane time and waste handling.
Ridge caps, drip trims, parapet copings and EPDM-sealed self-drilling screws supplied in exact color-matched RAL finishes.
High-strength galvanized C & Z purlins and girts calculated to panel span limits, delivered CNC punched and ready to bolt.
Optimized 40' HC container stuffing plans and road trailer freight with seaworthy packaging, CE declarations and customs documentation.
As showcased in our modern industrial hero facility, a building envelope only achieves high thermal performance and zero leakage when every component is engineered in coordination.
High rib profile delivers superior deflection resistance against snow, wind, and maintenance point loads. Overlapping capillary groove ensures absolute water-tightness.
Interlocking secret-fix joints conceal screw heads inside the tongue-and-groove joint, creating a clean, monolithic commercial façade suitable for vertical or horizontal mounting.
High-tensile cold-formed steel sections engineered for bay framing, roof purlins and wall girts. High strength-to-weight ratio with zinc galvanizing for corrosion protection.
Parapet flashings, drip trims, corner closures, watertight ridge assemblies and color-matched EPDM-washered fasteners fabricated from matching prime prepainted coils.
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.
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.
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.
Manufactured from 1200 mm steel coils to provide a full 1000 mm effective cover width with 6 ribs. Fewer end-laps, faster installation, and maximum area coverage per panel make it the industrial benchmark for factory roofs and warehouse walls.
Direct comparison of fire ratings, thermal conductivity ($\lambda$) and design applications for PIR, PUR, Rockwool and EPS sandwich panels.
Superior Fire Resistance & Maximum Thermal Efficiency
High Rigid Insulation & Structural Mechanical Strength
Ultimate Fire Safety Barrier & Acoustic Insulation
Lightweight & Most Economical Building Enclosure
Define your building dimensions and scope (Roof, Wall or Complete Envelope) to estimate net surface area, tonnage, logistics and budget.
Engineered packages for factories, logistics distribution hubs, poultry barns and modular camps.
Factories and manufacturing facilities require an integrated building envelope capable of withstanding dynamic overhead crane loads, heavy vibrations, strict fire compartmentation standards, and aggressive internal condensation while ensuring zero production downtime.
Distribution centers and automated fulfillment hubs require vast enclosed volumes, repetitive structural modularity, rapid construction timelines, and durable building envelopes that ensure airtight temperature regulation with minimal maintenance.
Temperature-controlled food facilities, pharmaceutical storage, and commercial cold stores demand specialized high-density insulation, zero thermal bridging, cam-lock airtight joints, and washdown-safe antibacterial surfaces conforming strictly to HACCP standards.
Off-site volumetric construction, living containers, and temporary site offices require millimetric dimensional accuracy, lightweight cores, structural rigidity, and export packaging that facilitates rapid factory-line assembly.
Poultry broiler houses, dairy barns, and fertilizer warehouses produce intense ammonia vapor, extreme interior humidity, and frequent chemical washdowns that rapidly destroy standard sheet metal envelopes within a few years.
Renovating deteriorated asbestos, leaking corrugated sheets, or uninsulated factory roofs restores structural integrity, slashes energy cooling/heating losses by up to 60%, and prepares facilities for rooftop Solar PV generation.
Automotive dealerships, corporate headquarters, and commercial shopping venues require modern aesthetic appeal, clean visual lines without visible screw heads, premium color coatings, and superior energy efficiency.
Commercial rooftop Solar Photovoltaic (PV) installations introduce substantial static dead loads, aerodynamic wind uplift pressures, and 25-year service life requirements that demand high-profile 5-rib roof sandwich panels.
Aviation hangars, indoor sports arenas, and grand exhibition halls feature unobstructed clear spans up to 60 meters, severe wind uplift forces, extreme indoor reverberation, and high indoor humidity that demand specialized acoustic structural envelopes.
Petrochemical refineries, fertilizer production, metal pickling plants, and coastal industrial terminals expose building envelopes to acidic vapors, sulfur dioxide, and salt spray requiring C5-I and C5-M certified anti-corrosive coatings.
Hyperscale data centers, telecommunication hubs, and mission-critical server facilities require ultra-tight thermal envelopes (Class 4 air permeability), exceptional thermal resistance (U ≤ 0.20 W/m²K) to optimize cooling PUE, FM Global fire integrity, and heavy roof load support for rooftop chiller plants.
Pharmaceutical manufacturing, biotechnology laboratories, and hospital critical suites require continuous micro-particle control (ISO 14644 Class 4–8), smooth flush-mounted wall and walk-on ceiling envelopes, resistance to aggressive VHP sterilization, and complete differential pressure airtightness.
Electrical substations, thermal power plants, gas turbine halls, and transformer bunkers mandate extreme passive fire resistance (Euroclass A1, REI 120–180), blast pressure venting capabilities, heavy acoustic noise containment (Rw ≥ 34 dB), and electromagnetic grounding durability.
Naval shipyards, dry docks, container freight stations, and marine cargo terminals face extreme coastal exposure: continuous saltwater spray (ISO 12944 C5-M), colossal wind suction pressures up to 300 kg/m² across 25-meter portal eaves, and industrial blasting grit.
Remote mining camps, mineral processing facilities, and exploration bases operate in the world’s most hostile climates (-40°C arctic tundras to +50°C desert environments) with heavy abrasive mineral dust, requiring rapid bolt-together assembly and maximum flat-pack shipping density.
Eliminating uncertainty for international contractors and procurement officers with guaranteed schedules and full export compliance.
Share your DWG/PDF blueprints, BOQ schedule or primary building dimensions.
Purlin spans, wind loads and fire codes are checked to confirm optimal core thickness and steel gauge.
Insulated panels, flashings, purlins, screws and freight rates combined in one transparent commercial offer.
Custom cut to millimeter lengths, protected by UV-resistant film and bundled with seaworthy strapping.
40' HC ocean container stuffing or cross-border truck delivery directly to your jobsite with complete paperwork.
Direct factory truckloads across Turkey with priority in Marmara & Istanbul; international 40ft High Cube container stuffing and cross-border freight across Europe, GCC, and the Balkans.
Strategically neighboring the Kocaeli/Gebze manufacturing corridor, we coordinate same-day and night UKOME deliveries across Istanbul European (25 districts) and Anatolian (14 districts) job sites, backed by official TS 825 insulation zone data.
Exporting certified sandwich panels and purlins across 60 target countries including Germany, UK, France, Romania, Saudi Arabia, UAE, Egypt, and Kazakhstan. Duty-free trading under A.TR & EUR.1 FTAs, certified CE declarations of performance, and optimized 11.85m container stuffing.
Peer-reviewed engineering articles on EN 14509 standards, purlin continuous sizing, cold room insulation, and rooftop solar arrays.
Comprehensive comparison of composite panels versus site-assembled double skin systems on installation speed, thermal bridging, and crane costs.
Technical evaluation of lambda values, Euroclass fire ratings, FM Global compliance, and acoustic damping performance.
Target U-values for roofs and walls across climate zones, 40mm to 120mm sizing charts, and dew-point condensation prevention.
From Germany to Saudi Arabia, Romania to the UK; explore verified case studies and technical feedback from completed industrial building envelope projects.
"Custom 11.80m lengths were supplied directly from Turkey to our Munich site with zero cutting scrap. Full compliance with EN 14509 and CE performance declarations made municipal inspection effortless. A.TR duty-free documentation was completely handled."
"Strict port fire authority codes required certified non-combustible A1 rockwool core panels. SerPan Metal delivered perfectly matching RAL 7016 flashing profiles and expedited truckload transit across the Bulgarian border with zero freight delays."
"40ft High Cube container stuffing was engineered to perfection with heavy-duty desiccants and foam spacers. High SRI exterior white facing easily manages +48°C ambient desert heat. SASO Saber certification was processed smoothly."
"Supplied with EUR.1 preference certificates for zero tariff import into the UK. The concealed-fix architectural wall panels delivered an immaculate facade. Exact millimetric lengths saved our rigging team days of on-site labor."
"Ordering coordinated roof panels and pre-punched structural purlins from a single manufacturing team eliminated all fitment errors. Flatbed trucks via Habur border arrived safely with pristine factory packaging and moisture barriers."
"Our plant renovation required high load-bearing sandwich panels capable of supporting rooftop photovoltaic (PV/solar) installations. SerPan Metal supplied custom-cut 5-rib PIR panels along with integrated ridge flashings and drainage channels. Pristine factory packaging, zero transit scrap, and full technical compliance made site inspection seamless."
Under the technical direction of founders İdris YAĞMAHAN (Architect) and Celalettin YAĞMAHAN (Civil Engineer), we ensure your building envelope satisfies structural span tables, thermal bridging minimization, and project fire performance requirements.
Common technical inquiries regarding sandwich panels, profiles, pricing, and export supply.
Share your project drawings or quantity takeoffs; our engineering team will provide a comprehensive commercial offer within 2 hours.