Views: 0 Author: Site Editor Publish Time: 2026-06-18 Origin: Site
1. What Are Sandwich Roofing Sheets?
Sandwich roofing sheets are composite panels consisting of two metal facings bonded to an insulation core. The core material determines the panel's fire rating, thermal performance, and overall sandwich roofing sheets price. Common core types include EPS (expanded polystyrene), PU (polyurethane), PIR (polyisocyanurate), and rock wool. Each type offers different benefits, and the insulated roofing sheets price varies accordingly. Understanding the metal roof sandwich panel cost is essential for budgeting large-scale projects.
2. Factors Affecting Sandwich Roofing Sheets Price
The sandwich roofing sheets price depends on several key factors:
Core Material: Rock wool and PIR cores command higher prices than EPS due to superior fire resistance and insulation.
Thickness: Panels from 50mm to 150mm have different insulated roofing sheets price ranges.
Steel Gauge: Thicker steel (0.5mm vs 0.4mm) increases metal roof sandwich panel cost.
Coating Type: PVDF coatings add 15-20% to the PU sandwich roof panel price compared to standard PE coatings.
Edge Sealing: PU edge-sealed panels (like Glostar's TW series) have a higher rock wool roof panel price but offer better moisture protection.
Order Quantity: Bulk orders can reduce the PIR sandwich roof panel cost by 5-10%.
3. Sandwich Roofing Sheets Price by Core Type (Data from Glostar)| Core Type | Thickness (mm) | Typical Price Range ($/m²) | Fire Rating | Thermal Conductivity (W/m·K) |
| EPS | 50–100 | 10–18 | B1 (flame retardant) | 0.038–0.041 |
| PU | 50–100 | 18–30 | B1–A2 | 0.022–0.025 |
| PIR | 50–100 | 25–40 | A2–A1 | 0.020–0.023 |
| Rock Wool | 50–120 | 22–38 | A1 (non-combustible) | 0.043–0.045 |
Note: Prices are indicative and based on Glostar's 2026 product catalog. Actual insulated roofing sheets price may vary by region and order volume.
4. Performance Comparison: Which Core Offers Best Value?| Feature | EPS Sandwich Roofing | PU Sandwich Roofing | PIR Sandwich Roofing | Rock Wool Sandwich Roofing |
| Fire Resistance | B1 (self-extinguishing) | B1–A2 | A2–A1 | A1 (non-combustible) |
| Thermal Insulation | Good (λ=0.039) | Excellent (λ=0.023) | Excellent (λ=0.021) | Good (λ=0.044) |
| Moisture Resistance | Moderate | High (closed cell) | High (closed cell) | High (hydrophobic treatment) |
| Structural Strength | Low | Medium | Medium | High (density 40–50 kg/m³) |
| Typical Application | Temporary buildings, warehouses | Cold storage, food processing | High-rise buildings, fire-rated zones | Industrial factories, chemical plants |
| Sandwich Roofing Sheets Price | Lowest | Medium | High | Medium-High |
Key Insight: For projects requiring A1 fire rating (e.g., chemical plants, public buildings), rock wool roof panel price is justified by safety compliance. For energy efficiency, PU sandwich roof panel price offers the best balance of cost and performance. PIR sandwich roof panel cost is optimal for high-rise buildings with strict fire codes.
5. Metal Roof Sandwich Panel Cost: Coating & Gauge Impact
Glostar's metal roof sandwich panel cost varies by coating type:| Coating Type | Lifespan (years) | Cost Premium vs PE |
| PE (Polyester) | 8–10 | Base |
| SMP (Silicone Modified Polyester) | 10–12 | +10% |
| HDP (High Durability Polyester) | 15–18 | +20% |
| PVDF (Polyvinylidene Fluoride) | 20–25 | +30% |
For coastal or industrial environments, investing in PVDF coating increases the initial insulated roofing sheets price but reduces long-term maintenance costs.
6. How to Choose the Right Sandwich Roofing Sheets
Determine Fire Rating Requirements: If local codes mandate A1, choose rock wool roof panel price options. For B1 allowable, PU sandwich roof panel price is more economical.
Calculate Thermal Needs: For cold storage, select PU or PIR with low thermal conductivity. The metal roof sandwich panel cost for 100mm PU is typically $25–30/m².
Evaluate Structural Load: Rock wool panels (density 40–50 kg/m³) offer higher load-bearing capacity. The rock wool roof panel price for 100mm is around $28–35/m².
Consider Installation Method: Glostar's PU edge-sealed panels (TW series) use hidden fasteners, reducing installation time and improving weather tightness. This can offset the higher PIR sandwich roof panel cost.
Request Bulk Quotes: For projects over 10,000 m², insulated roofing sheets price can be negotiated down by 5–8%.
7. Engineering Case Study
Project: Shandong High-Tech Industrial Park (China)
Product Used: Glostar PU sandwich roof panel (100mm, PVDF coating)
Application Area: 35,000 m²
Key Data:
Sandwich roofing sheets price: $28/m² (installed)
Energy savings: 40% reduction in HVAC costs compared to single-skin metal roof
Fire rating: A2 (meets local code)
Installation time: 45 days (vs 60 days for traditional system)
Result: The client achieved a 3-year payback period on the insulated roofing sheets price premium due to energy savings.
8. Conclusion
Understanding the sandwich roofing sheets price requires evaluating core material, thickness, coating, and edge sealing. For A1 fire safety, rock wool roof panel price is the safest investment. For energy efficiency, PU sandwich roof panel price offers the best value. For high-rise buildings, PIR sandwich roof panel cost is justified by superior fire performance. Glostar's product range (Polyjoy, Unicon) provides verified data to support these decisions.
Always request a detailed quote including metal roof sandwich panel cost for your specific project requirements. Contact Glostar at +86-135-6230-6065 or fmx@glostar.cn for current pricing.
