3 Attachment(s)
Thanks for the replies guys.......
Sounds like PPB are the likely culprit but I've attached some pics for your review. I hand planed the top of one beam last night and it seems as though the holes are mostly limited to the sapwood. After I planed I went over the surface with a wire brush and the holes and channels are definitely full of brown powder so i'm assuming the infestation is active based on the above posters information.
I'm considering some of the procedures suggested but want to ask if it is ok, preferred, not good, etc. to treat the wood after it has been roughsawn. Is it necessary to treat the lumber in its natural form or does it not really matter. The beams will be milled down to 6x6, 6x3 and 4x4 pieces so I'm hoping the heartwood isn't as affected.
Check out the pics below and let me know what you think.
Also, the beams are very heavy, especially for being as dry as they are. There does not appear to be any structural compromise to the material but I'll find out more tomorrow AM when I start cutting into this stuff. For now, its on the other side of my shop in isolation.
Thanks again for the replies,
PJS