TPIC Bulletin #1: Commentary on 10 PSF Bottom Chord Live Load in Commercial Roof Truss Design  REV: November 4, 2004 (112KB)                                               
 

TPIC Bulletin #2: TPIC Commentary - Load Considerations when Designing Attic Frames(37KB) REV: November 9, 2007
                
 

TPIC Bulletin #3: Part 4 Trusses in Part 9 Buildings (26KB)
REV: November 9, 2007
This commentary presents two different scenarios for Part 4 trusses in Part 9 buildings and presents the guidance TPIC was given by the Codes Section of the Institute for Research in Construction, who assists the Committees responsible for the preparation of the National Building Code of Canada.
 

TPIC Bulletin #4: Designing with Pressure Treated lumber?
Due to certain newer chemicals used in treating lumber, a possibility of accelerated truss plate corrosion may take place.
Please click on the link below and scroll down to the section titled " Preservative Treated Lumber " for valuable information.
http://www.woodtruss.com/projects/woodtruss/lumber.php?PHPSESSID=704dc6cc8f06b2d1b7a4af91fbfa7d50