comments:
You can install attic fans (1 fan pointing in and 1 pointing out), that would be the best solution. I can't do that with my coops because they're cheap prefabs so I use these fans: https://www.amazon.com/10000mAh-Battery-Operated-Portable-Stroller/dp/B08866RDYK?pd_rd_w=1kEC1&content-id=amzn1.sym.caa6c4b6-02d8-4b56-a647-db36fe7f3006&pf_rd_p=caa6c4b6-02d8-4b56-a647-db36fe7f3006&pf_rd_r=6HGYJEZJ8RKBVZVSXMR2&pd_rd_wg=oz2cf&pd_rd_r=70d2ce57-6e10-4a63-82f0-6a2b83cc0f40&pd_rd_i=B08866RDYK&psc=1&ref_=pd_basp_m_rpt_ba_s_1_sc They really only last the night, so I secure them with a removable zip tie and take them out every morning to charge in the garage. Its not ideal but it works. I have bought several over the years for various purposes and they hold up well.
I don't recall. very similar to this fan. no lights on it, and there are dozens of new ones in the 2 years since I've bought mine that may be cheaper. that said, it's going strong after 2 years.