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“ should hollow metal doors fill with foam ”

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Resolution: DISCONTINUED: The Falcon T lock had a reinforcement kit for a 1 3/4" thick hollow metal door that prevents lateral movement of the latch. It is a piece of hard foam shaped like a doughnut...:

Can wood doors be used with with double egress frames?

Resolution: Yes, wood doors can be used and installed in most hollow metal frame applications including FE-Series and DE-Series Double Egress frames. Caution - For fire rated applications the wood door manufa...:

What is thermal bow?

Resolution: Thermal Bow is a temporary condition which occurs in metal doors mainly due to the temperature differential from one side of the door to the other. This may occur in exterior doors when direct sun ...:

Is Rigid Cellular Polyisocyanurate Foam Core the same as Urethane Core?

Resolution: Polyisocyanurate foam (polyiso) is modified polyurethane foam but offers greater dimensional stability over a wider service temperature range.Polyisocyanurate foam is specifically formulated to pro...: