SFR Inspections, Professional Home Inspections

Boot flashing is designed to be used without mastic / sealant. Any time boot flashing is heavily sealed it's a red flag that the boot either leaked at some point or the roofer performed an unprofessional install.

Bathroom exhaust ducts should terminate to the exterior of the home. Ducting in attics or crawlspaces can cause excessive moisture in those spaces, which can lead to a number of issues.

If the supply registers are leaving black streaks on the register or ceiling around it, it's a good sign that the airducts need to be cleaned.