I've got four large (4 x 16) fir beams and have repaired the rot with epoxy.
But I wondered if if might be a good idea to drill holes in the beams for
borate rods in the hope of preventing the rot from continuing. Anyone here
have experience using them? Any idea of spacing?
Borate is as good as pressure treated wood as long as it isn't
constantly wet. A 60/40 mix of Borax and Boric Acid powder, disolved
in water (or better yet Glycol) will penetrate the wood 0 into the
cellular level, and kill all fungus and mold spores and virtually all
insects except carpenter wasps - and it is non-poisonous to mammals
(except for the slight toxicity of the glycol - worse if etylene is
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