We need a couple more dehumidifiers in our gym at church

I cherish my church family. They are undoubtedly some of the most good people on the planet. The pastor is a entirely humble & kind man. My associate and I have become quite close friends with his family. My associate and I are in need of a new church building soon though. The church has been growing immensely which is a blessing, but my friend and I are undoubtedly running out of room, & it often seems undoubtedly crowded on Tuesdays. My associate and I have done a little work to the building, & my friend and I may just try & expand the building that my friend and I have to accommodate more people. One of the projects that my friend and I have wanted to do for a few months now is renovate the gymnasium. It is a undoubtedly old gym, & it does not have proper insulation. It gets entirely cold during the winter time months, & it gets entirely tepid during the Summer months. My associate and I would like to instal air conditioning & heat in the gym, but it is no use if there is little to no insulation. For right now, my friend and I are using a couple of dehumidifiers during the summertime to try & keep the floors dry, & during the winter time months, my friend and I either do not use the gym, or my friend and I try to heat it with a couple of large kerosene heaters for special occasions. It is the middle of July right now, & my friend and I have realized that my friend and I will need a couple more dehumidifiers for this summer. It is much more humid than usual, & the floors in the gym are quite slick. My associate and I already had one hoops player fall & harm himself on the slick floor.
ductless mini split