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Application filed by Hi Peak Steel Corp, R Biola NormanfiledCriticalHi Peak Steel Corp
Priority to PH2/2014/000030UpriorityCriticalpatent/PH22014000030U1/en
Publication of PH22014000030U1publicationCriticalpatent/PH22014000030U1/en
The present utility model discloses a roofing structure comprising a profiled roofing sheet, an insulation layer closely adhered underneath said roofing sheet, and a thin sheet material underneath said insulation layer. The insulation layer has a flat bottom surface and a top surface contoured to the profile of said roofing sheet, such that there is no gap between said roofing sheet and said insulation layer, thus resulting to better thermal and sound insulation.
Stainless steel substrate for solar battery having excellent insulation properties and small thermal expansion coefficient, and process for producing same