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Installation and Maintenance Tips for EPS Sandwich Panels

Jun 09,2026

Introduction

Proper installation and regular maintenance are key to maximizing the service life and performance of EPS sandwich panels. Even high-quality panels may experience water leakage, deformation, or corrosion if installed incorrectly or neglected. This article shares practical installation steps and maintenance tips for long-term reliability.

1Installation Guidelines

1Surface Preparation

Ensure steel purlins or supporting structures are flat, clean, and free of rust or debris. Uneven bases cause panel deformation and gaps.

2Correct Panel Layout

Start installation from the corner. Install wall panels vertically and roof panels horizontally. Maintain a 1015 mm overlap between adjacent panels to prevent water penetration.

3Fastening and Sealing

Use self-tapping screws with rubber washers to fix panels on purlins. Apply weather-resistant sealant on all joints, corners, and screw holes. Poor sealing is the main cause of water leakage.

4Temperature Expansion Reserve

Leave 23 mm expansion gaps at panel ends and corners. EPS panels expand and contract with temperature changes; gaps prevent buckling.

2Daily Maintenance Tips

1Regular Inspection

Check panels every 36 months for loose screws, cracked sealant, rust spots, or dents. Inspect roof panels after heavy rain or typhoons.

2Keep Panels Clean

Clean surface dust and dirt with water and soft brushes. Avoid harsh chemicals or high-pressure washing, which may damage the protective coating.

3Prevent Corrosion

Touch up small rust spots promptly with anti-rust paint. Keep drainage systems clear to avoid water pooling on roof panels.

4Repair Minor Damage

Small cracks or scratches can be repaired with sealant or touch-up paint. Replace severely damaged panels immediately to maintain structural integrity.

Conclusion

EPS sandwich panels are durable and low-maintenance when installed and cared for properly. Following standard installation procedures and performing simple regular checks can extend their service life to 1520 years, ensuring stable insulation, waterproofing, and structural performance throughout.

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