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James Hardie Commercial
26300 La Alameda, Suite 400
Mission Viejo, California 92691
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For technical inquiries of a more complex nature, including information/applications and structural requirements that are not published in our available technical literature, please use this form. Providing the correct information for your project on the attached form will reduce the number of clarifying questions required to provide a suitable response to your inquiry for your project. Please note that James Hardie does not provide a plan review service.