Roof Sandwich Panels: High Load-Bearing & Weatherproof Envelopes
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.
* All prices EXW Factory excluding VAT.
Key Engineering & Commercial Benefits
5-Rib High Structural Inertia
Reinforced trapezoidal profile withstands severe snow and wind suction across wide 2.50m purlin bays without deflection.
Solar PV Non-Penetrating Clamp Fit
Direct clamp-on solar PV mini-rails eliminate panel roof penetrations, preserving absolute water tightness.
Factory-Applied Butyl Overlap Seal
Continuous lateral overlapping ribs with factory butyl gaskets provide an impenetrable storm barrier.
Continuous Cut Lengths to 13.50m
Manufactured to single-run ridge-to-eave lengths up to 13.50m, eliminating end-lap vulnerabilities and site 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.
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.
Insulation Core & Performance Comparison
Compare lambda thermal conductivities, fire ratings, densities and ideal project usages.
| Roof Panel Model | Core Type | Rib Geometry | Fire Rating | Solar PV Ready | Key Advantage |
|---|---|---|---|---|---|
| SP-ROOF-PUR (Standart Çatı) | PUR (40 kg/m³) | 3 veya 5 Hadveli | B-s2, d0 | Tam Uyumlu (5 Hadve) | Most popular industrial roof panel, optimal thermal insulation & cost |
| SP-ROOF-PIR (Sigortalı Çatı) | PIR (42 kg/m³) | 3 veya 5 Hadveli | B-s1, d0 (FM) | Tam Uyumlu (5 Hadve) | FM-certified flame retardancy, superior fire performance for insured assets |
| SP-ROOF-ROCK (Yangın Çatısı) | Taşyünü (100 kg/m³) | 5 Hadveli Güçlü Tepe | A1 Kesin Yanmaz | Uyumlu | A1 non-combustible roofing and acoustic sound absorption for high-risk plants |
| SP-ROOF-EPS (Ekonomik Çatı) | EPS (16-20 kg/m³) | 3 veya 5 Hadveli | E Sınıfı | Kısmi Uyumlu | Cost-effective thermal roof solution for light gauge steel and agricultural sheds |
| SP-ROOF-AGRI (Asit Çatısı) | PUR + CTP Alt Yüzey | 3 veya 5 Hadveli | B Sınıfı | Uyumlu | Fiberglass (FRP) inner face resisting ammonia, manure acids and humidity |
Thickness, U-Value, Weight & Logistics Matrix
Verify thermal resistance (R), permissible purlin spans and truckload volume per thickness.
| Thickness | Snow Load Bearing | Transmittance (U) | Dead Weight | Rec. Purlin Span | Truckload Capacity |
|---|---|---|---|---|---|
| 40 mm (3 Hadve) | 130 kg/m² | 0.55 W/m²K | 10.10 kg/m² | 1.50 – 1.80 m | ≈ 1.350 m² / Tır |
| 50 mm (5 Hadve) | 180 kg/m² | 0.44 W/m²K | 10.50 kg/m² | 2.00 – 2.20 m | ≈ 1.150 m² / Tır |
| 60 mm (5 Hadve) | 220 kg/m² | 0.37 W/m²K | 10.90 kg/m² | 2.20 – 2.50 m | ≈ 1.000 m² / Tır |
| 80 mm (5 Hadve) | 280 kg/m² | 0.27 W/m²K | 11.70 kg/m² | 2.50 – 2.80 m | ≈ 800 m² / Tır |
| 100 mm (5 Hadve) | 340 kg/m² | 0.22 W/m²K | 12.50 kg/m² | 2.80 – 3.20 m | ≈ 650 m² / Tır |
| 100 mm Taşyünü (A1) | 380 kg/m² | 0.38 W/m²K | 21.00 kg/m² | 2.20 – 2.50 m | ≈ 520 m² / Tır |
Critical Engineering Guidelines for System Selection
Standards for purlin spacing, live loads, fire containment and joint detailing.
1. Selecting Between 3-Rib and 5-Rib Roof Geometries
3-rib profiles offer an economical solution for standard purlin spans up to 1.50m under moderate snow loads. 5-rib panels significantly increase structural moment of inertia, enabling safe spans of 2.00m to 2.50m. For rooftop Solar PV installations, 5-rib geometry is strongly recommended to securely clamp solar rails.
2. Rooftop Solar PV Integration & Watertight Fastening
Standard solar mounting that punctures panels through to purlins creates chronic leak liabilities. Our 5-rib panels are certified for top-crown clamping using engineered mini-rails with EPDM gaskets, eliminating structural punctures and preserving envelope watertightness.
3. Roof Pitch Criteria and Longitudinal Overlap Detailing
Standard trapezoidal roof panels require a minimum pitch of 5% (7% in high precipitation zones). For slopes below 5%, factory-membrane panels (`SP-ROOF-MEMB`) must be utilized. When panel runs exceed 13.50m requiring end-laps, a minimum 200mm overlap with double butyl sealant beads is mandatory.
4. Regional Snow & Wind Uplift Static Load Engineering
Under structural code TS 498, heavy continental snow zones experience live loads up to 350 kg/m². These demanding conditions require 5-rib panels with 60-80mm thickness and conservative purlin spans not exceeding 2.00m.
5. Coil Gauge Sizing & Weather Corrosion Resistance
Facing atmospheric elements directly, top skins must be specified at minimum 0.50mm DX51D galvanized steel. Marine and harsh industrial zones benefit from 0.60mm gauges and specialized PVDF or Plastisol coatings.
6. Ridge and Eave Thermal Bridge Mitigation Detailing
Ridge intersections require ventilated flashings backed by custom profile foam closures and under-ridge plates, stopping storm-driven rain ingress and winter thermal energy loss.
Matching Flashings, Screws & Trims Package
Coordinated single-delivery guarantee: Color-matched flashings, EPDM fasteners, and covings.
3 & 5 Rib Top Ridge Cap
Seals roof apex against storm-driven rain and high wind suction.
Eave Drip Flashing
Directs roof runoff cleanly into perimeter gutters, protecting purlins.
Gable End Barge Board
Locks outer rake edges against wind uplift and water ingress.
Screws with Washers & Saddles
Provides watertight mechanical fixation to steel and timber purlins.
Corrugated Profile Foam Closures
Eliminates bird, dust and driven-rain penetration under ridges and eaves.
Solar PV Mounting Mini-Rails
Non-penetrating clamp-on aluminum rails for leak-free rooftop solar installation.
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 minimum roof slope for sandwich panels?
What is the recommended purlin spacing for roof panels?
Does rooftop solar installation puncture the roof panels?
What is the difference between 3-rib and 5-rib roof panels?
What is the maximum manufacturing length for roof panels?
Which insulation core is best for industrial factory roofs?
How are roof flashings, gutters and ridge details supplied?
How many fasteners are required per square meter of roof panel?
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