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Cladding

Using Fiber Cement & GFRC/UHPC with Knight Wall Systems

Knight’s support systems work with a variety of fiber cement, GFRC and UHPC panel and siding options. Lap siding, board and batt assemblies, open-joint, face fastened, concealed fastend, clip systems and trim systems have all been successfully used with Knight’s systems.

Panel attachment is accomplished and detailed just as the panels would typically be installed with Z-girts and hat channels, however without the thermal shorts in the exterior insulation, the hassle of engineering a durable & sufficient attachment method and costly installation labor of trimming the insulation around girt’s and bulky thick clips.

How to Use a Knight Attachment System with Fiber Cement Panels or Siding:

  • Lap Siding: Installed over a vertical framing only with any of our systems.
  • Board & Batt Systems: Installed over vertical framing only with any of our systems.
  • Face Fastened Panel Systems: Installed over horizontal framing + Vertical PanelRail. Vertical PanelRail layout/spacing mirrors panel fastening pattern.
  • Concealed Fastener Systems: Installed with vertical framing and used with concealed fastening system horizontal rails by others.
  • Shiplap Panels with Concealed Clip Systems (i.e. Nichiha): For horizontal oriented panels – install over vertical framing at 16″ OC; For vertical oriented panels – install over horizontal framing + vertical PanelRail spaced at the panel module dimension.

All guidance provided above assumes typical installation applications in which KWS has observed to be the most common methods. Every project is different and may require an atypical approach.

Popular Brands of Fiber Cement & GFRC/UHPC Include:

  • SVK Panels
  • TAKTL™ Panels
  • James Hardie™ Panels and Siding
  • Nichiha® Panels and Siding
  • SWISSPEARL® Fiber Cement Panels
  • oko Skin™ Panels
  • Fibre C™ Panels
  • SILBONIT™ Panels
  • EQUITONE Panels
  • CERACLAD Panels


The above list of products and manufactures are not the only compatible products, others do exist. Certain products within ones complete product line may not be compatible. Please check with the cladding or panel manufactures for any special requirements. Please contact Knight Wall for further information or questions. All trademarks listed above whether registered, or not, are not the property, nor should it be assumed to be the property, of Knight Wall Systems, inc. Only the Trademarks listed below are the property or under the control of Knight Wall Systems, inc.
NOTICE: No freedom from any patent owned by Knight Wall Systems or others is to be inferred. Because use conditions and applicable laws may differ from one location to another and may change with time, Customer is responsible for determining whether products and the information in this document are appropriate for Customer’s use. NO EXPRESS WARRANTIES ARE GIVEN EXCEPT FOR ANY APPLICABLE WRITTEN WARRANTIES SPECIFICALLY PROVIDED BY KNIGHT WALL SYSTEMS. ALL IMPLIED WARRANTIES INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED.
CI, CI-Girt, MFI, ThermaZee, ThermaBracket and PanelRail are registered trademarks controlled by Knight Wall Systems, Inc. ThermaStop, RevealRail and Knight Wall Systems are trademarks of Knight Wall Systems, Inc. Patents US 11,299,891; 11,286,676; 9,856,655; 9,732,518; 9,677,268; 8,429,866 and others pending. This list is not exhaustive and Knight Wall Systems does not waive its rights in regard to other patents or trademarks that are not listed.