Field Evaluations to Nationally Recognized Standards and Local Building Codes
If your already-installed fire doors are missing a proper certification mark, Intertek’s field labeling services can help you avoid removal and replacement of unlabeled openings. We offer the following services to assist you:
The Warnock Hersey Mark indicates compliance to appropriate national and local codes, standards and requirements. The Warnock Hersey fire door certification label is widely recognized throughout the industry, appearing on 70% of all fire doors found in North America.