I have brought a couple of poly national BBs and while I can see/feel that they are warmer than wood I'm not sure how long they might last.I'm actualy going to have a go at building a poly national
So what do you use to go on holiday in? I have today just received a complete Langstroth poly hive and a jumbo brood box (thanks Buzzy Bee Shop/Macros). The boxes were light but big. Ten of them, you would need a removal van.completely ignor the construction material, with them both being equal, the main differance is the size of area in the brood chamber, a langstroff being larger, also langs are avalible in europe more than nationals, this being of particular point if you want more than say ten, you can buy them in europe on holiday and bring them home delivery free
All gaps have been filled and all exposed wood and foam given two coats of varnish so will soon find out if the bees will chew it. The design has a few other 'features' not in other hives you can buy.I hate to say this but...Huston you have a problem.
If you leave that insulation exposed the bees will chew it to shreds. Trust me been there...
If you have bought your poly hives from Swienty or their agents in the UK again trust me on this they aint going to let you down. Think a life time. I am utterly confident on this.
If they are not from the above or Struan apiaries then I cannot comment as I have no experience on them.
ThanxI missed the question about the chewing.
There are different densities of poly (obviously) from the sort of stuff that your TV arrives protected by and the stuff that is used for the good hives.
You need to be aware that there are two densities of hive and the ones whose vendors I have mentioned sell the stronger harder stuff.
I once dropped on off a trailer at 40mph and all the damage was a chamfering of the roof. The colony seemed none the worse. They certainly didn't lose the queen.