Imperial 5Y Threshold
The Imperial 5Y Threshold from Quanex is simply the best-performing and highest quality threshold on the market. The 5Y Threshold is available in a full, solid extruded base and a cost effective half width base. It utilizes our patented ImperiSEAL™, which provides a continuous filament that positively seals the adjusting rail to the deck of the sill. This eliminates any chance of water intrusion through the threshold.
The “Y” series of thresholds carry numerous third party air and water infiltrations certifications well in excess of DP50. Because of the “tucked” design of the rail and the ImperiSEAL™, “Y” series thresholds have a unitary exposure surface, unlike traditional “rail over dam” thresholds, offering superior performance and negating the need for SILL PANS.
Imperial 5H Threshold
Get maximum performance for the price with Quanex Imperial 5H Hybrid-Technology Thresholds designed to provide excellent protection against air and water infiltration and resist weathering. The 5H incorporates the patented ImperiSeal™ technology with a durable, injection-molded base. These thresholds are available in full width (5-5/8” to 7-7/8”), corridor width (4-9/16”) and in 2/8 to 3/0 lengths.
Imperial 5E Threshold
The Imperial 5E Threshold form Quanex is perfect for applications where quality cannot be sacrificed but economy is a primary concern. The 5E is a 5 degree 1 3/8” tall high dam composite threshold available in short sill configurations and in 4 9/16”, 5 5/8”, and 7 5/8” widths.
Imperial 5C Threshold
Exterior door certification requirements in Canada have led to breakthroughs in threshold design that are adaptable to expanded widths, while virtually eliminating air and water infiltration. Imperial 5C Thresholds are ideal for high-end applications that require the very best performance and long-term durability.