I'm curious as to what allergies are caused by mold exposure?

Several disorders. Exposure to molds (fungus) can trigger seasonal or year round allergic rhinitis or nasal allergies as well as asthma. Mold can trigger "Allergic Fungal Sinusitis" where mold growth expands the nasal sinuses and also colonize the lungs of patients with asthma called Allergic Bronchopulmonary Aspergillosis. Also molds can trigger hypersensitivity pneumonitis--lung inflammation like pneumonia!