Technical Directory

The following is a list of all publicly available DrJ Research Reports (DRR) for DrJ Engineering clients. If you wish to view DrJ Certification Technical Evaluation Reports (TER) or Listings, please visit the DrJ Certification Report Directory.

No.	Report	Title
DRR 23-0147	Report PDF	TechWood 4400 (TW4400) Wood Protection Treatment Approved Alternative to Fire-Retardant-Treated Wood
DRR 1707-02	Report PDF	Attachment of Exterior Wall Coverings through Foam Plastic Insulating Sheathing to Cold-formed Steel Wall Framing Legacy Document
DRR 1509-10	Report PDF	Prescriptive Requirements for Installation of Vinyl Siding over Foam Plastic Insulating Sheathing Legacy Document
DRR 1410-05	Report PDF Sealed PDF	Foam Plastic Insulating Sheathing Products & Accessories Used as a Code Compliant Water-Resistive Barrier (WRB) System
DRR 1410-06	Report PDF Sealed PDF	Foam Plastic Insulating Sheathing Used as an Air Barrier Material in an Air Barrier Assembly
DRR 1303-04	Report PDF	Attachment of Exterior Wall Coverings through Foam Plastic Insulating Sheathing to Wood Wall Framing Legacy Document
DRR 1304-01	Report PDF	Attachment of Windows with Integral Flanges through Foam Plastic Insulating Sheathing to Wood Framing Legacy Document
DRR 1205-05	Report PDF Sealed PDF	Construction Details for the Use of Foam Plastic Insulating Sheathing in Light-Frame Construction
DRR 1202-04	Report PDF Sealed PDF	Foam Plastic Insulating Sheathing Products in Exterior Walls of Type I, II, III, or IV Construction
DRR 1202-03	Report PDF Sealed PDF	Foam Plastic Insulating Sheathing Products in Exterior Walls of Type V Construction
DRR 1202-01	Report PDF Sealed PDF	NFPA 285 Tested Assemblies Using Foam Plastic Insulating Sheathing Products