我有一个小型混凝土砌块仓库，位于纳什维尔，TN，有混凝土楼层（希望很快成为木材，我已经广泛地研究了这个话题，并有一些经验，我觉得我的计划将工作相信）。天花板高17 - 18英尺高（扁平屋顶超过50英尺）。我附上了一个我用天花板的素描。There is some medium quality EPDM roof on top, a layer of rigid insulation of unknown type and thickness (I saw it once briefly three years ago but didn’t bother to note the details back then), then probably some other layers of stuff (? maybe, probably?), and then the plywood that is visible on the inside of the building. The plywood is in good shape for being over 20 years old. I do not see any rot or other forms of decay etc. The whole thing is being held up by two rows of rafters, which are connected by trusses.

I would like to insulate this ceiling/roof a little more. I’ve thought about the different options, and spray foam is certainly the standard solution most people mention first. I do not like the idea of spray foam for a couple of reasons:

1）与喷雾泡沫有关的健康问题;我不知道具体的证据，但我只是不相信这一切。
2）湿度担心：胶合板将被密封到下面的空间，但屋顶不完美，可能存在湿气侵入。我真的想要一些坡度和金属屋顶的建筑物！
3) Price point: Estimated $10000 with DIY

我真的很喜欢摇滚狼。它溶于良好，还提供隔音。附带的草图显示了我的想法。我很乐意留在罗克沃尔和胶合板之间的差距。我准备通过一些易于删除整个天花板的面板分布来监控条件。

此外，我希望在2到3年内需要一个新的屋顶，我希望在那一点上改变整个装配，将屋顶从平坦转换为不平坦，理想地使用金属屋顶。

这一切如何声音？

感谢您的时间！