Technical Bulletins

Commentary on 10 PSF Bottom Chord Live Load in Commercial Roof Truss Design
REV: November 4, 2004 (111KB)

TPIC Commentary – Load Considerations when Designing Attic Frames
REV: November 9, 2007 (38KB)

Part 4 Trusses in Part 9 Buildings
REV: November 14, 2007 (19KB)

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.

Design for Corrosive Environments
April 14, 2020 (525KB)

TPIC Commentary – Designing trusses for roof top gardens
(79KB)

Special Load Considerations for Trusses
(609KB)

Solar Ready Truss Design Procedure
(123KB)

Flat Roof Truss Design
(63KB)

Long Span Trusses
(202KB)