Poly hives vs cedar after four Quebec winters — is the difference as big as people claim?
Quebec, fifth year. I run five wooden hives and three polystyrene ones, bought partly out of curiosity, and after four winters I've got enough of a feel to be useful to someone deciding.
Where poly clearly wins here: winter feed consumption is noticeably lower, spring build-up starts a couple of weeks earlier, and the colonies come through more reliably in the years when February is brutal.
Where wood wins: they last forever, I can scorch them, and I can repair them with a saw and a screw. My poly boxes have dents from hive tools, one corner a mouse chewed, and UV has chalked the paint on the oldest one. Handling is different too — you can't lever a poly box the way you do cedar, and I've broken a rabbet doing exactly that.
The thing nobody warned me about: condensation behaves differently. In a wooden hive the walls are the cold surface and water runs down them. In poly the walls are warm, so the coldest surface is whatever is above the cluster, and if you insulate the top badly you get drips right where you don't want them. My first poly winter was wet for that reason.
#poly-hives#hive-materials#condensation#quebec
▲ 11 votes💬 4 replies
4 replies
SkaneBees · Oct 26, 2026
Skåne, and poly is the default here for exactly the reasons you list. The condensation point is the one that catches people, and you've described it perfectly: warm walls mean you MUST get the top right. I run a thick insulated crownboard on every poly hive and the wet-hive problem disappeared. On handling, you learn a different technique and then it's fine.
DrentseBij · Oct 26, 2026
Drenthe. I'm all wood and I stay all wood, but honestly for climate reasons rather than principle — our winters are mild and the feed saving would be small. What I'd say to anyone mixing: mixing box TYPES is a nuisance, mixing frame sizes is a nightmare. Keep one frame size whatever the material.
HokkaidoHachi · Oct 26, 2026
Hokkaido. I switched four hives to poly two years ago and the earlier spring build-up is real for me too. One caution: cleaning. You cannot scorch poly, so you're relying on scraping and an appropriate disinfectant, and that changes what you'd do with a suspect dead-out. QuebecBees, has the mouse damage on yours gone through the wall or just the corner?
QuebecBees · Oct 27, 2026
HokkaidoHachi — just the corner of a floor, about the size of a thumb, and a mouse guard would have prevented it. That's on me. But it does show that a rodent that would give up on cedar will keep going on poly.