While a variety of doors can be fire-rated, hollow metal is the only material that is regularly granted a three-hour label. To reach this label in testing, the door, frame, opening size, jamb depth, and assembly work together to provide reliable protection in the event of a fire. In fact, one of the best options for commercial building projects are steel temperature rise doors.
Temperature rise doors are designed to reduce the transfer of heat on the cooler side of the entryway. By capping the rate of heat transfer, people in the building can more safely pass through a fire's point of origin. It's one of the reasons why temperature rise doors are often used in stairwells. These types of steel doors come with a range of heat transfer ratings, with the lowest preventing the unexposed side of door from getting hotter than 250 degrees.
Located in a port city, China Dalian Golden House Door & Window Manufacture Co., Ltd. is a large-scale enterprise specialized in producing American-Standard steel fire doors and wooden fire doors. Our company produces 50000 sets of steel fire doors and 20000 sets of wooden fire doors every year. Our fire door products have passed UL Approvals AND FM Approvals and INTERTEK(WH) approval successively. Moreover, our fire door products can be sold directly to more than 20 countries over North America, Latin America, Middle East and Africa.
We respond to tendency of international fire doors market, and provide good service combining foreign clients' needs, with an aim of expanding a wider international market. In the future campaign for world market, our foreign trade elites will achieve better sale performance through unremitting efforts and dedication.
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