... installation, environmental friendly, high strength, low weight, fireproof, waterpro Heat Insulation Roof Tiles,roofing,sandwich panelSpecifications:1.Length: 3000mm2.Width: 600mm3.Thickness ... deformation in wet envirnments3. Soundproof4. Strength: Bendable and impact resistant5. Weight: 42kg per sq.m.6. Temperature Maintenance7. Environmental Friendly: Free ...