Nichiha Architectural Wall Panels require a detail-oriented installation process, akin to finish work, to ensure a durable and long-lasting facade. The system utilizes clips, extrusions, and fasteners, with specific requirements for screw types and penetration depths depending on the substrate. Installation procedures are detailed in accompanying videos covering various scenarios, including starter track installation, corner treatments, panel joints, and sealing. It is important to note that installation procedures may vary by country, and local subsidiaries should be consulted for specific guidance in certain regions.
System Components and Fasteners
The Nichiha system relies on several key components for secure and weather-resistant installation. Clips and extrusions are fundamental to the panel attachment method. The documentation specifies the use of #8 or #10 exterior grade, corrosion-resistant pan, wafer, or hex head screws for use with these components. A critical prohibition is noted: bugle head screws should not be used with clips and starter tracks. The required screw length must achieve a minimum penetration of 1 inch into wood stud/furring or 1/2 inch into metal stud/furring.
Face fastening is also an option, utilizing #7, #8, or #10 exterior grade bugle head screws. These screws must be fully threaded and meet the same minimum penetration requirements as those used with clips and extrusions – 1 inch for wood studs and 1/2 inch for metal studs.
Beyond the mechanical fasteners, a sealant compliant with ASTM C920, Class 35 is required for proper sealing of the installed panels. The installation guide provides further details regarding sealant application.
Installation Procedures: A Video-Based Approach
Nichiha provides a series of detailed videos outlining the installation process for various scenarios. These videos cover the following procedures:
- Starter track installation
- Preformed outside corner installation
- Panel installation
- Panel (left and right panel joint)
- Panel (top and bottom panel joint)
- Panel (inside corner)
- Panel (opening)
- Panel (Soffit)
- Panel (repair)
- Sealing
These videos serve as a primary resource for installers, demonstrating the correct techniques for each step of the process. The documentation does not provide detailed textual instructions beyond listing these video topics.
Substrate Considerations and Fastener Penetration
The choice of fastener and the required penetration depth are directly related to the substrate material. The documentation clearly differentiates between wood and metal substrates:
- Wood Stud/Furring: Fasteners (both for clips/extrusions and face fastening) must penetrate a minimum of 1 inch.
- Metal Stud/Furring: Fasteners must penetrate a minimum of 1/2 inch.
Ensuring adequate penetration is crucial for achieving a secure and durable installation. Insufficient penetration can compromise the panel’s resistance to wind loads and other environmental factors.
Regional Variations and Local Subsidiary Information
The documentation includes a specific notice regarding regional variations in installation procedures. It states that material handling and installation practices may differ from country to country. For installations in the US, Canada, Mexico, China, and Russia/CIS, installers are directed to consult the information provided by the local subsidiary of NICHIHA. This highlights the importance of adhering to locally-approved methods and standards.
Screw Type Restrictions
A specific restriction is placed on the use of screw types. Bugle head screws are explicitly prohibited for use with clips and starter tracks. The documentation recommends pan, wafer, or hex head screws for these components. This restriction likely relates to the head geometry of bugle head screws and their potential to interfere with the clip or starter track functionality, or to compromise the clamping force.
Importance of Precision and Accuracy
The documentation emphasizes that installing Nichiha Architectural Wall Panels is a detail-oriented process requiring precision and accuracy. While specialized labor such as masonry is not required, the installation is comparable to finish work in terms of the level of care and attention needed. A successful installation contributes to the long-term durability and performance of the facade.
Sealing Requirements
Proper sealing is a critical aspect of the installation process. The documentation specifies the use of a sealant compliant with ASTM C920, Class 35. The installation guide provides further details on sealant application techniques. Effective sealing prevents water intrusion, which can lead to corrosion, mold growth, and structural damage.
Conclusion
Nichiha Architectural Wall Panel installation demands careful attention to detail, adherence to specified fastener types and penetration depths, and consideration of regional variations. The provided documentation emphasizes the importance of utilizing the accompanying video resources and consulting local subsidiaries for region-specific guidance. Proper installation, including correct fastener selection and sealing, is essential for achieving a durable, weather-resistant, and aesthetically pleasing facade.
Sources
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