Greenheck
Greenheck introduces the first line of fire dampers and fire/smoke combination approved for horizontal installation, in places without concrete and fire-resistant barriers.
The DFD, FD and FSD series of dampers can be used in UL 1503 floor/ceiling designs, which is a fire-resistant two-hour floor/ceiling assembly made of metal poles and plasterboard.
This unique method of installation simplifies the task of designers and contractors to protect duct boreholes at the top or bottom of fire-resistant construction shafts.
