In today’s industrial and pre-engineered building (PEB) projects, roofing insulation is no longer an option—it is a necessity. Heat gain, condensation, and long-term moisture damage can significantly reduce building life and increase maintenance costs. At Mahawar Prefab Solutions, we provide advanced industrial roofing solutions using scientifically tested systems such as PUF panel insulation, XLPE insulation, bubble sheet insulation, and pre-insulated roofing sheets.
Why Roofing Insulation Is Critical for Industrial Buildings
Metal roofing sheets are highly conductive. Without proper roofing insulation, they allow excessive heat transfer during summers and rapid cooling during winters. This temperature difference results in moisture under roofing sheets, commonly called condensation. Proper insulation improves energy efficiency, protects stored material, and increases the overall life of the building.
Why Moisture Forms Under Roofing Sheets
Moisture under roofing sheets forms due to condensation. When warm, humid air inside the building comes in contact with a cooler metal roofing surface, water droplets form. The main technical reasons include high temperature difference, high humidity levels, lack of insulation, poor ventilation, and direct exposure of metal sheets to humid air.
PUF Panel Insulation – Technical Specifications
PUF panel insulation (Polyurethane Foam Panels) is a premium roofing insulation solution widely used in PEB and industrial buildings.
Technical Specifications:
• Core Material: Rigid Polyurethane Foam
• Thermal Conductivity: 0.022–0.026 W/mK
• Density: 40 ± 2 kg/m³
• Thickness: 30 mm to 100 mm
• Facing Sheet: PPGI / GI
• Moisture Resistance: Excellent (acts as vapor barrier)
PUF panels offer superior thermal insulation, excellent moisture control, and long service life.
XLPE Insulation – Technical Specifications
XLPE insulation (Cross-Linked Polyethylene Foam) is a flexible and cost-effective roofing insulation option.
Technical Specifications:
• Material: Closed-cell cross-linked polyethylene foam
• Thermal Conductivity: 0.032–0.038 W/mK
• Density: 28–33 kg/m³
• Thickness: 5 mm to 15 mm
• Water Absorption: Less than 1%
• Facing: Aluminum foil / metalized film
XLPE insulation helps reduce heat transfer, noise, and moisture under roofing sheets.
Bubble Sheet Insulation – Lightweight Moisture Control Solution
Bubble sheet insulation consists of air-filled bubbles laminated with aluminum foil layers. It works mainly by reflecting radiant heat and reducing condensation.
Technical Specifications:
• Structure: Polyethylene air bubbles with aluminum foil
• Thickness: 3 mm to 10 mm
• Heat Reflection: Up to 95%
• Water Resistance: Good
• Weight: Very lightweight
Bubble sheet insulation is commonly used in warehouses and sheds where budget-friendly insulation is required.
Pre-Insulated Roofing Sheets – All-in-One Solution
Pre-insulated roofing sheets are factory-fabricated roofing sheets with an integrated insulation layer such as PUF or EPS.
Advantages:
• Faster installation
• Consistent insulation quality
• Excellent thermal and moisture performance
• Reduced site labor cost
These sheets are ideal for large industrial projects and modern PEB structures.
Cost Comparison of Roofing Insulation Options
Approximate cost comparison (cost varies with thickness and project size):
• Bubble Sheet Insulation: Low cost – economical solution for basic moisture control
• XLPE Insulation: Medium cost – balanced thermal and moisture performance
• Pre-Insulated Roofing Sheets: Medium to high cost – faster execution and better performance
• PUF Panel Insulation: High cost – premium insulation with maximum thermal efficiency and durability
Choosing the right insulation depends on budget, building usage, and long-term operational cost.
Conclusion
Ignoring roofing insulation leads to heat loss, condensation, corrosion, and higher maintenance costs. Using the right insulation such as PUF panel insulation, XLPE insulation, bubble sheet insulation, or pre-insulated roofing sheets can effectively eliminate moisture under roofing sheets and improve building performance.
Mahawar Prefab Solutions delivers technically sound, durable, and cost-effective industrial roofing solutions tailored to your project requirements.
