Xci Class A & Xci 286 Air Barrier, Water-Resistive Barrier & Fire Performance in Exterior & Interior Walls of Buildings of Type I-V Construction

No.: 
1402-01
Issue Date: 
Monday, July 21, 2014
Updated Date: 
Monday, December 17, 2018

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. 

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