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Joists in basement

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  • Dec 19th, 2020 1:12 pm
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Deal Fanatic
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Oct 13, 2008
8427 posts
4671 upvotes
Durham

Joists in basement

Anybody can advise what the black/brown (whatever colours) strip is at the bottom of the joist in my basement is?

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16'x11' Living Room 11' Cathedral Ceiling. Hisense 65Q8G. Denon AVR-S740H 7.2 setup. Jamo Classic 10 280W Towers - FR+FL; Polk S35 - Center; Klipsch R51M - RR+RL; Klipsch R14M - Dolby FHR+FHL; Polk HTS10 Subwoofer x2. Unlocked Android Boxes from Taiwan x2
2 replies
Deal Fanatic
Nov 21, 2013
8130 posts
9317 upvotes
Montréal
Spruce or pine have gummy sap... my guess would be dried tree sap
Deal Fanatic
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Jan 6, 2002
6833 posts
7575 upvotes
Toronto
Tree goo from the tree whence the joist was cut.
Si Tacuisses, Philosophus Mansisses

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