Posted by Beth Fenton on 11:51:23 8/14/2016 from 22.214.171.124:
In reply to: Re: Help identify what is chewing the knots in my TG ceiling posted by John Fasoldt on 21:15:23 8/12/2016 from 126.96.36.199:
Thank you for the quick reply. I kept proofing my original post so sorry for the numerous reposts.
I am in a Chicago suburb. Thank you for your insight, I will try to figure out how to contact another T & G or cedar expert. Just not sure where to start. I originally went to a cedar association website which linked me immediately to a major lumber supplier in my area and who our contractor did purchase or original siding from. That person said he had never seen anything like it and was going to contact experts. They did not get back to me and when I followed up with him he said they were still thinking about it but thought perhaps carpenter bees. Needless to say I have heard nothing more. Your thought like mine is that the original material may have been suspect. Just have no idea how to go about proving this or evaluating that suspician. I did find a very interesting UMass Amherst Building and Technology website that addressed in detail the proper moisture content of building materials as well as the problems associated with moisture contents that are too high for specific areas int eh country. I am pretty sure that contractors do not check moisture content of the material they buy. Can small spiders chew wood? The knots absolutely have a chewed look. The knot did not fall to the ground. It is gnawed but no clear evidence of an insect. From my perch below the suspect knots (my bed is pretty much under and to the side of the problem area) I cannot see any insect. I have gotten up on a ladder and do not see any insect. But maybe a small teensy spider could do this?? I do see some evidence of small spider webs between some of the T&G boards and also between the douglas fir beam and the side wall or the T& G boards. Small webs not big and no sighting of a spider in the web.
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