The Pemko 254 x 4_FG Thermal Barrier Threshold 8-1/8″ x 1/2″ enhances energy efficiency by reducing heat and cold transfer at door openings. Featuring a Frost Guard polypropylene thermal break, this threshold minimizes temperature conductivity between interior and exterior spaces while offering versatile installation options.

Key Features

• 8-1/8″ wide threshold with 4″ Half Saddle and customizable adjacent Half Saddle
• Allows 5/8″ door clearance for smooth operation
• Integrated channel for connecting thermal keys
• Rigid polypropylene thermal key provides effective thermal break
• Wood screw installation included as standard
• Non-welded construction for flexible installation
• Compatible with surface-applied vertical rod exit devices
• Functions as a door stop and bottom seal

Benefits

• Improves thermal performance, reducing heat and cold transfer
• Lowers energy costs and maintains interior comfort
• Supports custom saddle configurations for unique door setups
• ADA accessible when installed with a 1/2″ offset

Certifications & Compliance

• UL 10C Positive Pressure Rated
• UL 4L10 Listed
• Americans with Disabilities Act (ADA) Compliant
• ANSI/BHMA A117.1
• ANSI/BHMA A156.21 – Thresholds

Specifications

• Width: 8-1/8″
• Height: 1/2″
• Base Materials: Aluminum, Brass, Stainless Steel
• Fasteners: WS #10 x 1.5″

Finish Available