 
            	Multi foil Insulation material provide good thermal barrier property,but only with 40mm thickness.Compared with the traditional insulation material, like glass wool, foam, rock wool, Qiyao multi-foil insulation material can give you a very high thermal barrier rate to 7.17㎡*k/w.
The material can seal your roof from the wind and dust as a envelop(especially applied for wood & metal roofing or ceiling system), keep the inside air flow smoothly, providing you a good ventilation living surrounding. After installing, your roof will retain dry and warm in winter, while prevent overheating in summer.
| Essential Charactertics | Performance | Standard | 
| Thermal Resistance-Core | R 1.31 | EN 12667:2001 | 
| Thermal Resistance-Roof | R 2.27 | EN 12667:2001 | 
| Thermal Resistance-Wall | R 2.73 | EN 12667:2001 | 
| Tensile properties-Length | 705N/50mm | EN 12311-1 | 
| Tensile properties-Width | 610N/50mm | EN 12311-1 | 
| Dimensional Stability | 0.002 | EN 1604:2007 | 
| Water penetration | W1 | EN 1928:2000 | 
| Reaction to Fire | Class E | EN 16501-1 |