Can't put it off any longer: time to finish the roof beams. It would have
been much easier to finish them on the ground before setting them 18' in
the air, but they weigh about 1000# each and I couldn't roll them. If I
was to do it again, I'd probably finish and exposed faces while on the
ground, and do the rest in the air.
Filled the many knot-holes that BC
skipped (in their "appearance" grade), sanded them down with 60 grit paper,
then they got three coats of satin spar urethane. To trim out, the insides
that have a gap between the top edge and the roof get filled with painted
closet rod; the tight sides where the roof rests right on the beam edge
get custom quarter-round-type molding, but 63½° instead of 90°.