NFPA 286 Tested Wall Assemblies Using Kingspan Kooltherm® Insulation Boards in Attics, Crawlspaces, Basements, and Other Interior Applications

No.: 
1601-07
Issue Date: 
Wednesday, April 12, 2017
Updated Date: 
Monday, April 22, 2019

Engineering Services

DrJ provides engineering and related services specializing in light-frame construction.

Structural engineering services are not currently offered in Illinois.

Product Certification

DrJ is an ISO/IEC 17065 accredited product certification body through ANSI Accreditation Services. 

Contact Us

Learn more about DrJ and let us know how we can help with innovative products, processes and services. Knowledge, sound design and good installation always lead to success!

Contact Us