T Jordan, if you can replace it ask fir a marine type plywood. We used that but sealed both sides before installing on floors of both coops. No issues yet from my 3 yr old coop floor that sits ten inches at least off the ground. Used an exterior sealant but I don't recall which. No problems yet with it and deep litter in 3 winters either. Just turn it and throw more bedding in one a week. Good luck and I hope this helps.
The only problem with marine plywood is the cost.
Hey, if the stale donut isn't good enough for YOU is it good enough for your precious chickens?

Of the 3 auracanas (so called) i have one that matches the description I've heard. She is very pretty, grey, white, black with very pronounced tufts on her ears and larger than the other chicks except the legbar looking one (might be one of the auracanas). I don't really care if they are pure, i have my very varied flock i wanted and they are all healthy. I put the turkeys in the smallest pen but the tunnels are open so they can mingle if they want. I'll try to get some good pics tomorrow.
Do they have tails? If no tails and ear tufts (not to be confused with the muffs on EEs, Ameraucana, Faverolles etc) then they must have a fair bit of Araucana in them. Where did you get those particular birds?
What scares me is all the new construction going up everywhere in our L.A. County area using OSB walls instead of plywood. Those interior sheets will crumble and then what will hold up the structure - our brand new roof had a leak and can you imagine the damage if our contractor had used OSB? No wonder there's so much "settling" going on in new buildings!!!!! Unbelievable that the building codes allow this junk!!!!
Bad all the way around. 24 years ago we had a house rebuilt by a father/son pair. Super efficient. When we talked about roofs they said "drive by the condos over on ......" in the morning. They had worked on those buildings when working for a construction company. They would not use OSB as roof sheathing and I could see why. The asphalt shingle roofs on those fairly new condos were rippled. Exterior plywood was what they used, no ripples.
That said, the rebuilt part of the current house has 8" Structural Insulated Panels (SIPs, rigid foam sandwiched between 2 sheets of OSB) on the roof but instead of shingles the SIPs are covered with standing seam metal (we could have gone with asphalt shingles but I don't know if the roof would fair any better than those on the condos). And there is no attic space, the first layer on the rafters is 1" half lap pine (the ceiling) then the SIPS. And the exterior walls are 4" SIPS attached to the outside of the post and beam frame. The carpenter put on (new type) "tar paper" rather than the "housewrap" stuff because he said he has seen rotted sheathing in walls of houses not even 15 years old when covered with "housewrap" but much older houses with "tar paper" have always been fine. And over the "tar paper" he put vertical spacers and a "rain curtain" so that any humidity that might get behind the siding will condense and drain out rather than soak into the back of the siding. Besides rotting the siding out from the back, the moisture collecting in the wood will greatly decrease the "lifespan" of the paint as it "pops off" the wet wood.
For those of you who can add Guinea to your flock for mice, rats and snakes. They even go after rattle snakes out west as seen on video. Being in a woods with farm land near mice are horrible. Just waiting for my 3 to grow up so I can turn them loose in the yard.
@Sylvester017 I use heat lamp with the c hook and clamp both and I still worry will be glad when I can turn them off.
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I don't know that ACV (or any vinegar) would disinfect but it couldn't hurt. I wouldn't spend the extra on real ACV (see below) for cleaning purposes, just use cheap white vinegar.
what is adc and what is the real name for de? thanks
ACV - Apple Cider Vinegar. But you need the stuff with "mother", not the light amber stuff. It is the "mother" that has the purported health benefits.