Certified Window

Alpen ZR-6 Casement

Alpen High Performance Products Orange Path Certified (Valid through 2026-01-02)

Overview

  • U-Value, Whole Window

    0.18 BTU/hr·ft²·°F 1.00 W/m²K

  • U-Value, Center of glass (U-COG)

    0.11 BTU/hr·ft²·°F 0.64 W/m²K

  • SHGC-COG

    0.337

  • Operation Type

    Operable

  • Frame Material

    Fiberglass

  • IGU Panes

    Triple

  • Glazing Name

    108/L

  • Rec. Climate Zone(s)

    • 1
    • 2
    • 3C
    • 3B
    • 3A
    • 4C
    • 5C
    • 4A
    • 4B

IGU (Glazing) Information

  • Panes

    Triple

  • Gas Fill

    Argon

  • Spacer

    Allmetal 250P SST

Download

  • PDF Certificate

    Phius product certificates provide the component-level data needed for actual-size thermal performance calculations. Phius Blue Path and Orange Path certificates are functionally equivalent for use in Phius Project Certification.

Frame Information

Head Sill Left Jamb Right Jamb
Frame height 2.87 in 73 mm 2.87 in 73 mm 2.87 in 73 mm 2.87 in 73 mm
U-Frame 0.18 BTU/hr·ft²·°F 1.03 W/m²K 0.18 BTU/hr·ft²·°F 1.03 W/m²K 0.18 BTU/hr·ft²·°F 1.02 W/m²K 0.18 BTU/hr·ft²·°F 1.02 W/m²K
PSI-Spacer 0.032 BTU/hr·ft·°F 0.055 W/mK 0.032 BTU/hr·ft·°F 0.056 W/mK 0.036 BTU/hr·ft·°F 0.062 W/mK 0.036 BTU/hr·ft·°F 0.062 W/mK

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