In Miami-Dade, comfort isn’t only about temperature. Our outdoor humidity is high for much of the year, and your air conditioner is the main system that removes moisture from indoor air. When that doesn’t happen properly, homes feel sticky — and excess moisture can contribute to mold growth.
How your AC removes humidity
As warm, humid air passes over the cold indoor coil, moisture condenses and drains away. The system needs to run long enough, with the right airflow, to pull that moisture out. The U.S. Environmental Protection Agency recommends keeping indoor relative humidity below 60%, ideally between 30% and 50%, to help limit mold growth.
Installation problems that cause humidity issues
- Oversized equipment: a system that’s too big cools quickly and shuts off before it can dehumidify. See why sizing matters.
- Leaky ducts in hot attics: leaks can pull humid attic air into the system and lose conditioned air.
- Poorly insulated ducts: uninsulated or damaged duct insulation can “sweat,” causing condensation and moisture damage.
- Drainage problems: condensate lines that are installed or routed incorrectly can back up and leak.
- Inadequate ventilation or exhaust: bathrooms, kitchens and laundry areas need proper exhaust to remove moisture at the source.
Signs of a humidity problem
- A clammy or sticky feeling even when the house is cool
- Musty odors, especially when the AC starts
- Condensation on windows, vents or ducts
- Visible mold around supply vents or in closets
Solutions that start with installation
- Size the AC system correctly for the home’s actual load
- Consider variable-speed equipment for longer, steadier dehumidifying run times
- Seal and insulate ductwork — or replace it if it’s contaminated or failing
- Install proper exhaust and ventilation where moisture is produced
One of our customers had us replace their ductwork and install a new AC system after discovering mold in their old system. Learn about our ductwork installation and ventilation systems.
Bottom line
In South Florida, your AC system is your first line of defense against indoor humidity. A properly sized system with sound ductwork keeps your home cooler, drier and healthier.
Talk to a Licensed Miami-Dade AC Contractor
Advanced Cooling Inc. has installed air conditioning, ductwork and ventilation systems across Miami-Dade County since 2002. We are a Florida Certified Air Conditioning Contractor (License CAC1821074) and focus on installation and replacement work for homeowners, business owners, property managers and general contractors.
Ready to plan your project? Call (305) 519-6560 or email [email protected], or fill out our online estimate form, to request an estimate, or learn more about our Ductwork Installation service.