I entered an attic of a 2000 sq. ft. property in Plano Texas last week and was confronted with a burnt area covering around a third of the attic. A disconnected flue that exhausts into the attic just below the roof decking caused the burning. I was amazed just how much damage the discharge of fumes into the attic had caused but found out later that the current roof had been installed 14 years ago and the flue may have been disconnected then. It is known that high temperatures have a dramatic effect on lumber’s load carrying capacity and increases the probability of brittle failure at the weakest link in the piece of lumber associated with a defect - notably, a large knot(Note 1). There was a failure present and visible in the attic as the following picture shows. This raised my concern in three areas. First there is a distinct possibility that the attic could catch fire, second that the structural integrity of the attic has been so compromised that it could collapse and last, but not least, the probability of carbon monoxide entering the living area. Read more https://drive.google/open?id=0ByvFfKK7TGcicTFudXdDcjRUbW8&authuser=0
Posted on: Sun, 28 Dec 2014 18:19:47 +0000
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