John Dirks Jr Posted February 25, 2012 Report Share Posted February 25, 2012 The house is 1971 build. A portion is slab on grade. Under the slab is a 12" diameter HVAC duct that looks like a concrete based material. From it there are some smaller diameter runs. Is there a concern that this duct material contains asbestos? Download Attachment: P1230206.JPG 89.96 KB Download Attachment: P1230209.JPG 68.74 KB Download Attachment: P1230268.JPG 64.12 KB Link to comment Share on other sites More sharing options...
Bill Kibbel Posted February 25, 2012 Report Share Posted February 25, 2012 Most transite was made with asbestos until the early-mid 1980s. Link to comment Share on other sites More sharing options...
John Dirks Jr Posted February 25, 2012 Author Report Share Posted February 25, 2012 Most transite was made with asbestos until the early-mid 1980s. Thanks Bill. To expand, do the pictures I posted make you believe that it's likely Transite? I picked at the cut portion where the damper was installed and it crumbled without too much effort. Link to comment Share on other sites More sharing options...
Bill Kibbel Posted February 25, 2012 Report Share Posted February 25, 2012 Thanks Bill. To expand, do the pictures I posted make you believe that it's likely Transite? Yes, and it's very common for in-slab ducts.Click to Enlarge 43.14 KB Link to comment Share on other sites More sharing options...
John Dirks Jr Posted February 25, 2012 Author Report Share Posted February 25, 2012 Thanks Bill. To expand, do the pictures I posted make you believe that it's likely Transite? Yes, and it's very common for in-slab ducts.Click to Enlarge 43.14?KB Thanks again for the quick information. The report is done and on its way with the concern listed. Link to comment Share on other sites More sharing options...
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