The documents listed below assess the code compliance of specific Johns Manville products. IBC Section 104 and IRC Section R104 allow for the use of alternative materials, design and methods of construction.
DrJ provides engineering and related services specializing in light-frame construction.
- Professionally Engineered Solutions
- Code Compliance Evaluations
Structural engineering services are not currently offered in Illinois.
DrJ is an ISO/IEC 17065 accredited product certification body through ANSI Accreditation Services.