Hi all

The sort of board being described for separating a couple of nucs above a
fullsized colony, is described on the page
http://website.lineone.net/~dave.cushman/ratsplit.html

The dimensions used on this page are for British National hives, but the
principles are easily extended to other hive sizes.

Clay & Michael were discussing solid or ventilated versions.

I have used both, in winter and summer conditions and I could not find any
noticable difference.

I used 9 mm ply, 6 mm ply and 5 mm play at various times...

9 mm stays flat and does not warp.
6 mm warps and twists and so does 5 mm, but 5 mm has a lower heat insulating
value.

The ventilated versions were of two types some had large areas of 8 mesh and
some had a porter escape hole covered with 8 mesh or perforated zinc.

I was intending to try an experiment using 20 mesh vent panels on the basis
that varroa could not pass the mesh, but I can't remember the rest of the
reason for the experiment.


Best Regards & 73s, Dave Cushman... G8MZY
Beekeeping and Bee Breeding Website
http://website.lineone.net/~dave.cushman

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