I recently bought a Maisemores poly nuc for a rather sickly colony.
Today I added Kingspan in an eke, to beef up the insulation.
I'd also cut crown board from 4mm ply to replace the rather flimsy clear sheet that came with it. I thought it was cut to size, to fit inside between ekes (it's a 14x12 nuc) but clearly I'd got it wrong as the top eke wouldn't sit flat. I wasn't prepared to mess about, and let the bees get cold so I removed it.
As I have only the one poly nuc I can't now work out what I did wrong.
Can anyone with more experience please give me an idiot's guide to putting a solid crown board on a Maisemore's poly nuc, please?
Dusty
Dusty, yes Maisemore sell the Payns poly nuc - same unit.
Yes, you probably need to round off the corners.
The (square-cornered) plastic one is noticeably smaller than it might be - BECAUSE it has square corners!
For checking, you can offer up your ply on top of the top eke - ie take just the roof off.
Insight: the top of the eke is dimensionally the same as the top of the brood box and the top of the lower eke!
Trim the ply so that it is just a couple of mm smaller than the eke all round - even in the corners. Check by just temporarily setting it on top.
Note that a thicker coverboard means that there is less overlap between the plastic sections - a potential cold spot - and that the tower is accordingly less 'stable'. So, an extra brick (or gargoyle) on the top ...
A ply coverboard is useful for supporting a feeder -- BUT -- the clear coversheet is awfully good for checking on what they are up to with absolutely minimal disturbance!
If/when you might slip some fondant in there, the clear one allows you to check it without lifting the coverboard.
Transparency is a wonderful property!