FlexLouver Rack Arm System

Precise Light Control for Hard to Shade Areas

Designed to control solar energy, light, and glare, the FlexLouver Rack Arm System features an operable louver system for interior or exterior use. For precise light control in venues such as galleries or museums, the FlexLouver Rack Arm System provides years of dependable service with minimal maintenance. The shading system finely tilts open or close to control the light levels within a space. Perfect for difficult glazing situations, each shading system is custom designed to meet specific application requirements.

Product Specs

  • Flexible system sizes 2” (50 mm), interior only. See submittal for additional sizes.
  • Perforated slats available with the 2" (50 mm) and 3" (80 mm) options. See submittal for additional sizes.
  • Rolled edge system 3" (80 mm). See submittal for additional sizes.
  • Extruded system 3" (75 mm) and 3-1/2" (88 mm). See submittal for additional sizes.
  • Colors: 2" (50 mm): silver or white, 3" (75 mm): natural anodized or standard RAL color, 3" (80 mm): silver (RAL9006) or white (RAL9010), 3" (88 mm): natural anodized. Custom powder coat colors available.
  • System can be installed on vertical, horizontal or inclined glazing.
  • System can shade almost any shape of glazing-circle, triangle, trapezoid, etc.
  • Automatic controls available for optimum solar control, cutting solar gains by more than 90% and reducing HVAC requirements.
  • Rack arm types: Standard, Heavy Duty and Box Rack Arm.
  • Slats can be adjusted between fully opened and fully closed but do not retract.
  • Precise light controls for hard to shade areas.
  • Adjustable slat angles prevent direct sun penetration, whatever the sun angle. Precise light control can be achieved with slow tilting of slats.
  • High levels of light exclusion achievable with the extruded 3" (88 mm) system.
  • System can withstand very high wind speeds. Care must be taken where there is a risk of significant ice or snow.
  • Product designed for interior or exterior use, depending on slat selection.

ANSI/WCMA A100.1 Compliance

If clutch-operated roller shades are installed in an environment where it's possible that young children will be present, they should comply with ANSI/WCMA A100.1, the Standard for Safety of Window Coverings.

If the shades that you purchase need to comply with this standard, it is your responsibility to inform Draper and opt-in to receive compliant products at time of order.

Spring-Loaded Cord Tension Device

Compliant window shades will include:

  • Pre-installed spring-loaded chain tension device with bead chain threaded through it
  • Approved permanent warning label attached
  • Approved mechanical fasteners for the tension device included

If the tension device is not installed properly, or becomes unattached from the mounting surface, the shade will be rendered partially inoperable. If installed properly, the tension device will prevent the creation of a hazardous loop and will maintain tension on the bead chain. The tension device and label require tools to be removed.


The testing required by the WCMA for products to comply with safety standard A100.1 includes:

  • UV stability testing - AATCC Test Method 16 for UV Stability
  • Impact testing - ASTM D5420
  • Bead chain durability testing
  • Operation cycle testing - 3,000 cycles per the standard

Our spring loaded tension device passed the requirements of these tests.

WCMA compliant hangtag warning label

Supporting Documents

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