The U-Factor, R-Value and K-Thermal Rating are measurements of thermal transmission through building products.
U-Factor: Overall co-efficient of heat transmission passage through a built-up panel...
Dutch doors are available as Fire Rated door assemblies and have similar component requirements as a single leaf fire door. Exceptions are as follows:
The Dutch Door assembly must have a lock...
Yes, Steelcraft doors and/or frames are available and can carry a UL, WH or FM label. The type of fire label (UL, WH or FM) is dictated by the specifications and local building code.
Doors ...
High Definition (High Def) door panel designs have deeper shadow lines than conventional CE-Series designs.
CE-Series doors are available with optional High Definition (HD2 and HD2A) door panel de...
The Von Duprin Guard-X exit device is not fire rated because the deadbolt is not spring loaded. Therefore, there would be no positive latching as required on a fire rated opening.