Wanting to Build Bioactive (Long-Term Project)

[Homebody]

That, to my understanding, leaves wood. I read a lot about it not holding humidity as well but then a lot of people list what sealants they use. What I have not seen is how well those sealants have held up between heat, humidity, urates, etc.

I'd love to know if anyone has experience and can talk about the pros and cons of their build.

I am looking to build something that will last a long time. If I am going to be replacing it in a few years, I'd rather save and invest in something pre-built.

My enclosure is built from plywood. I sealed it with Varathane polyurethane. So far, it has lasted 4 years. There has been some warping, but nothing too bad. I expect it to last many more years.



The center shelf is 1/2 pvc sheet that I bought from Home Depot. The tub on the bottom is a cement mixing tub. This keeps the plywood from being exposed to moisture. It holds humidity perfectly well, particularly in the the tub.



The top part is heated with a RHP. The bottom is heated with heat tape. It's not bioactive, so I don't know how well it would hold up under those conditions.