Hazard Alerts

You can download or view our Hazard Alerts by using Adobe Acrobat Reader. If you don't have Adobe Acrobat Reader installed please go to Adobe's site to download your free copy. To download a guideline, just right click on the link and select "Save Target As..."

Hazard Alert 1 (15kb)

USE OF STEEL TILE BATTENS ON TRUSSED ROOFS

Roof trusses rely on the tile battens to provide lateral restraint to the top chords, which prevents them from buckling sideways when under load.  The strength of a truss is determined by the effectiveness of the lateral restraints to the top chords and is an important design consideration...

Hazard Alert 2 (13kb)

USE OF STEEL FASCIA MAY AFFECT THE DESIGN OF TRUSS TOP CHORD OVERHANGS

One of the design checks for truss top chord overhangs is for a person standing in the most critical position for the design of the overhang...

Hazard Alert 3 (184kb)

SUB-STANDARD PUNCHED STRAPPING AND TENSIONERS

The most commom application for punched strapping is in structural wall bracing.  AS1684 is the primary reference in the BCA that governs the use of metal straps for...