KWS® MFI® System

The MFI® system combines strength, flexibility, and sustainability for superior performance. Engineered with durable steel rails and brackets, it supports both vertical and horizontal orientations to fit nearly any design. ThermaBrackets® with ThermaStop® isolation technology reduce thermal bridging, boosting energy efficiency. Made from recyclable, non-combustible steel and Red List Free thermoset polymers, this system offers optimal sustainability while reducing material use and labor costs.

Performance dashboard

Features & functionality

  • Steel rails and brackets engineered for strength and durability
  • Supports vertical and horizontal rail orientations for design flexibility
  • Adjustable rail-to-bracket connections ensure precise installation
  • Thermally isolated ThermaBrackets® allow greater spacing, optimizing material, and labor use


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MFI® system

Environment & materials

Improved by:

  • Steel ThermaBrackets and Rails are recyclable and non-combustible
  • ThermaStop® isolator reduces thermal bridging, improving energy efficiency
  • American-made and produced steel


Certification & rating systems:

  • ThermaStop® isolator and bracket head cap are made with Red List Free thermoset polymers
  • ZAM® coating is Red List Free