Polystyrene sheets for insulation?

[Eddie_H]

I was given some 25mm plain polystyrene sheets, and was hoping to use 2 sheets of these as winter insulation instead of the celotex or Kingspan 50mm stuff. Would they be suitable?

 

[Swarm]

Better than nothing, just make sure the bees can't get to it.

 

[Apiarisnt]

50mm of standard PIR (Kingspan or Celotex) would be very roughly the equivalent of about 75mm of good quality expanded polystyrene.

50mm of good quality expanded polystyrene would be very roughly the equivalent of about 35mm of standard PIR (Kingspan or Celotex) .

 

[For want of a better word]

As TESCO say every little helps!

Nadelik Lowen

 

[madasafish]

I was given some 25mm plain polystyrene sheets, and was hoping to use 2 sheets of these as winter insulation instead of the celotex or Kingspan 50mm stuff. Would they be suitable?

I strap two together using gaffer tape and paint them with either emulsion or stone paint to reduce the number of bits falling off.

 

[Eddie_H]

50mm of standard PIR (Kingspan or Celotex) would be very roughly the equivalent of about 75mm of good quality expanded polystyrene.

50mm of good quality expanded polystyrene would be very roughly the equivalent of about 35mm of standard PIR (Kingspan or Celotex) .

So, 75mm (3x25mm sheets) of polystyrene would be approx 52-53mm of kingspan/celotex? And should do the trick?

 

[Apiarisnt]

So, 75mm (3x25mm sheets) of polystyrene would be approx 52-53mm of kingspan/celotex? And should do the trick?

All rough figures and expanded polystyrene varies in quality and thermal properties, but I would imagine the bees will just be happy to be warmer. Go for it.

 

[Millet]

I have some sheets here .. freebies obviously but they are 75.5 mm thick does it matter if they are only 75mm thick..

 

[Beefriendly]

If you are using poly hives throw the sheets in the recycling bin. It's not needed.

 

[Millet]