I'm in the planning stage for finishing my basement. Bedroom, bathroom, workshop, library, office, storage, & fitness room. Michigan.
Am I reading the code correctly that each room excluding the hallways, storage & bathroom will EACH need a window >= 8% of floor space of that room? I understand the egress requirements ( & the necessity) of the bedroom window, but I'm unsure of the non-egress windows. That seems like an awful lot of windows. With the septic & pipes, the central air, the power main, the attached garage, the attached deck....there's not a lot of available wall space left to put more & larger windows in.
Currently there are 4 ground-level windows, 10"x30". Those windows are placed so that, even if enlarged, 3 rooms would still not have any windows.
Since I've never in my life been in ANY non-exposed basement that had large windows that let in plenty of light, fresh air, & the singing of birds, I'm wondering if I'm understanding the code requirements correctly.