LOL - another Dave/David here! I too would be interested where you go with this. Attached are some examples of what I've done to date, but still interested in opportunities for improvement.
My winters are long with many snow storms and horizontal snow of varying types. Before "hardening" I would get a few snow incursions per winter. Now I might get one or two of lesser significance. Still occasionally have issue of snow/ice building up on brush bristles and then freezing up solid - hampering ability of dome to rotate (and thus worry about motor getting overloaded).
Three main focus areas:
1) Bottom of dome along circular track (used simple "brush seal")
2) Edge along sides of upper shutter (used simple "brush seal")
3) Gap at end of upper shutter where it mates up with lower shutter (used block of hard foam, cut to fit)
Exploradome used to sell lengths of the brush as a kit (with instructions for installation). Not sure if they still do (but maybe worth asking?). Attached are instructions that came with the kit.
Clear Skies,
DaveNL
PS. Though I had made a previous post on this, including pictures, when I disassembled the upper shutter to attach the brush seals. But can't seem to find in the archive (old Yahoo groups postings). And I've since lost those pictures to a HDD crash.
