Latest news

09/01/2017

WARDFlex MAX Corrugated Stainless Steel Tubing now meets the ASTM E84

Technical Bulletin # 2017-1 WARDFlex MAX Fire Rated Construction WARDFlex MAX Corrugated Stainless Steel Tubing now meets the ASTM E84 flame spread and smoke density criteria of 25/50 or less. This allows installation in a plenum without the need to remove the coating from the CSST. In addition to these instructions all local building codes need to be followed when installing WARDFlex MAX in a plenum. Most building construction codes require materials located in a plenum to have a flame spread/smoke density index of 25/50 or lower. Local codes may differ from this criteria and should be reviewed to determine… Read More


We use cookies to improve your experience by anonymously collecting browsing data. We do not collect personal information. Cookies can be disabled in your browser settings. For further details, please check our privacy policy in relation to cookies.
OK