Hive insulation

echidna · 2024-11-19T13:23:00+0000

Phill M said:
2 insulation threads.

I'm intrigued by what looks like sponges in the photo. Are they soaked in oxalic acid or similar?

Phill M · 2024-11-19T13:36:05+0000

No not sponges.
They are small blocks of wood.
I put these either side of the feeder hole in the crown board (perspex) so the bees don't get squashed.

ken in NH · 2024-11-19T14:22:42+0000

At the risk of sounding (being) dumb- what is PIR?

JamezF · 2024-11-19T14:30:09+0000

ken in NH said:
At the risk of sounding (being) dumb- what is PIR?

Polyisocyanurate (can you guess why people call it PIR?

). Sold in the UK and Europe as a rigid foam board faced with aluminium foil, anywhere between 12mm (½") and 150mm+ (6") thick, for insulating buildings, typically used between the leaves of a hollow wall and between rafters/joists.

James

Erichalfbee · 2024-11-19T14:52:54+0000

ken in NH said:
At the risk of sounding (being) dumb- what is PIR?

This

echidna · 2024-11-19T15:20:34+0000

Phill M said:
No not sponges.
They are small blocks of wood.
I put these either side of the feeder hole in the crown board (perspex) so the bees don't get squashed.

Ah, thanks. I wondered if you were trying a varroa treatment like Randy Oliver. Looks like you've put a lot of thought and effort into your set up.