Glass panneled wall with back curtain wall system.

Curtain Wall Back Pans

Curtain Wall Back Pans

Back pans are substructure components used in curtain wall systems for the purpose of thermal and moisture protection.

Get A Quote for Curtain Wall Back Pans


    Working exclusively to supply Glass and Glazing trades, backpans are adhered and sealed to the curtain wall frame behind opaque glazing areas.

    Product Features

    • Available with custom flanges
    • Available in oversized dimensions
    • Available with customized features including tapered or angled pans

    Curtainwall Systems

    Unitized Curtain Wall Systems

    Unitized systems are considered to be superior from lower on-site labour costs derived from the units being manufactured in a climate-controlled factory environment and shipped to the site in modular units.

    Stick Built Curtain Wall

    Stick-built systems can be more economical especially if the building facades require lower volumes. In addition, the lead time is much shorter. The parts required will be ready which will then allow for earlier installations. However, the installation will take longer because fabrication and glazing will be done on site.

    hilti firestop backpan


    Back pans are designed to minimize field installation time and can be fastened to curtain wall, steel substrate or block substrate.  Specialized shapes and custom punching or notching are available to suit any specific application. All corners of our back pans are tabbed sealed and spot welded to deliver superior performance as a vapor barrier. IMARK is also experienced in fabricating Hilti Firestop back pans for use in unitized curtain wall assemblies.

    Product Profiles

    View PDF
    Back of curtain wall.


    IMARK uses Roxul Cavityrock exterior cavity insulation which has been designed exclusively for the use in exterior cavity wall and rainscreen applications like back pans.  As a high density semi rigid board Roxul Cavityrock insulation combines a high density outer layer and softer inner layer that is fire resistant, water and moisture resistant and delivers a R-value of 4.3/inch.

    Depending upon the back pan design and depth of the pan we can supply insulation in thicknesses ranging from 2″ to 5″ (3″ standard)

    Roxul Cavityrock insulation.

    Material Selection

    Depending on your design criteria, we can supply backpans in

    • Galvanized G90 (standard)
    • Galvalume
    • Available in 20, 22 and 24 gauge (22 standard)
    Different kinds of back pans

    Are you a glazing contractor?

    Contact IMARK to obtain a quote or discuss your backpan requirements on your next project.