According to climate data compiled by the National Oceanic and Atmospheric Administration (NOAA), Tampa Bay, FL consistently ranks on the list of the muggiest regions in the United States. HouseFresh, a website dedicated to independent research on indoor air quality trends and solutions, ranks Tampa as the sixth most humid city. They base this on an annual average of 260 days with a dew point of 60°F.
During the summer months, Tampa mornings feature relative humidity levels as high as 85%. Although the levels may drop to 60% in the afternoon, moisture remains high, affecting comfort and lowering indoor air quality (IAQ).
Understanding Humidity and IAQ
At Ahoy! Cooling & Heating, IAQ is a crucial factor we consider when providing heating, ventilation, and air conditioning (HVAC) services. IAQ refers to the biological and chemical particles in the air you breathe at home. The HVAC factors that most frequently impact IAQ include dust, pollen, allergens, pet dander, spores, pollutants, and moisture.
When our technicians conduct IAQ audits, they use special instruments to measure moisture levels and detect issues causing excess humidity levels. We may identify hidden leaks, entry points, worn weather stripping, inadequate air circulation, and spots where the HVAC system may be accumulating moisture and introducing spores into the airflow.
Excessive moisture is detrimental to IAQ, household health, structural integrity, and personal property. When relative humidity levels consistently exceed 60%, as we often detect in Tampa homes, your indoor spaces become a breeding ground for dust mites and mold spores, which are known triggers for respiratory issues, allergies, and asthma.
Beyond health concerns, poor IAQ and high moisture can seep into materials and increase the risk of hardwood floors warping, wallpaper peeling, and drywall rotting. In some situations, dampness can damage antiques, decorations, electronics, furniture, and musical instruments.
With the above in mind, let’s look at some simple solutions you can implement to control humidity and improve IAQ.
Whole-Home Dehumidifying Systems
The Asthma and Allergy Foundation of America and the American Lung Association recommend maintaining indoor relative humidity at levels below 45% to inhibit the growth of mold and dust mites. These recommendations are for patients living with conditions like allergic rhinitis, asthma, chronic respiratory diseases, and mold sensitivities. You have two options: portable dehumidifying systems and whole-home systems.
Portable units are for people who spend many hours in specific living spaces, such as patients recovering in a bedroom or people working in a dedicated home office. These plug-in models provide immediate relief in spaces where moisture levels are particularly stubborn. While they are convenient for localized and specific situations, portable units do not have the capacity to control humidity levels across all your living spaces. At Ahoy! Cooling & Heating, we recommend whole-home dehumidifying systems as superior long-term IAQ solutions because they integrate directly with your HVAC equipment, pulling moisture from all spaces simultaneously.
A whole-home dehumidifier draws warm and moist air through return ducts before passing it over a refrigerated coil. As the air cools, moisture condenses into liquid and drains away. The dry air is reheated and circulated back into your living spaces, ensuring balanced and comfortable airflow.
Bathroom Ventilation Solutions
In the humidity conditions of Tampa neighborhoods, bathroom vent fans are ideal solutions for improving IAQ with a targeted approach. When you take warm showers, the water heater generates steam that rapidly pushes local relative humidity levels close to the 100% saturation point. Before it can dissipate, moisture settles and accumulates on cool surfaces like bathroom cabinets, mirrors, and walls.
In bathrooms equipped with exhaust fans, showering creates negative pressure that extracts moist air before it can waft to other spaces. This prevents saturated air from promoting mold growth in the grout lines or on drywall surfaces. When the outdoor dew point is already high, bathroom ventilation systems ensure that the moisture accumulating from daily showers and baths doesn’t overwhelm your HVAC system’s humidity control functions.
Regular HVAC Maintenance
This is crucial to managing humidity and improving IAQ. When Ahoy! Cooling & Heating technicians complete seasonal HVAC maintenance calls, they clean the evaporator coils and ensure the condensate drain line is clear. If the coils are covered in dust or the drain is clogged, the system cannot effectively remove water vapor, which leaves the air feeling heavy and sticky.
Our technicians also verify that the blower motor is moving air at the correct velocity. When the airflow moves too quickly across the coils, it doesn’t stay long enough to lose moisture. Beyond humidity control, regular HVAC maintenance addresses other IAQ concerns by ensuring filtration systems are unobstructed. We also check refrigerant levels because undercharged systems lose their built-in dehumidifying capacity.
Customers with Ahoy! Cooling & Heating maintenance memberships get two annual inspections to keep electromechanical HVAC components in optimal condition to function as moisture extractors, thus protecting your home’s structural integrity and your health.
Home Ventilation
Adequate ventilation at the structural level is a vital component of moisture control. The right features can facilitate the exchange of humid and stagnant indoor air with dry or filtered air, helping prevent excess moisture buildup. When indoor air sits still in our damp Tampa climate, it holds excess moisture that can condense on surfaces.
Proper ventilation ensures that moisture generated by breathing and household activities like cooking and cleaning can be diluted and exhausted before it settles. Tampa home builders recommend special features for adequate ventilation. For example, soffit and ridge vents allow warm and moist air to escape through the peak of the roof while drawing cooler air in, thus preventing humidity from rising from the attic and rotting the roof deck.
A more sophisticated feature for efficient ventilation involves energy recovery systems, which are mechanical ventilators that can swap indoor air with fresh outdoor air. Also known as energy recovery ventilators (ERVs), these systems are essentially fan boxes that can be customized for various floor plans and structures. They pre-condition the incoming breeze, helping reduce excess humidity before it enters your home.
High-Efficiency HVAC Systems
This is an upgrade solution ideal for many Tampa homeowners with aging HVAC systems. Modern, high-efficiency HVAC systems are designed to deal with the relentless humidity of coastal climates. As your HVAC equipment gets closer to the end of its lifespan, its single-stage mechanism cycles on and off more frequently. Short-cycling doesn’t give HVAC units enough time for dehumidification. Your system may still reach the thermostat set point for cooling, but you have to deal with damp and clammy air.
High-efficiency HVAC systems feature variable-speed compressors that run for longer durations at lower speeds. This advanced mechanism consistently delivers moisture extraction and superior air filtration. As a Mitsubishi Diamond Elite Contractor, Ahoy! Cooling & Heating can install HVAC systems with H2i heat pump technology, which delivers optimal cooling and steady air circulation even during the most sweltering Tampa afternoons. Mitsubishi HVAC systems make fine adjustments to the refrigerant flow, ensuring that the evaporator coil remains at the optimal temperature for maximum condensation. The consistent low-speed airflow pulls moisture and airborne pollutants from your living spaces, improving comfort and IAQ.
Humidity Control Solutions by Ahoy! Cooling & Heating
As Tampa Bay’s First Mates for Home Comfort, Ahoy! Cooling & Heating is your best solution for optimal IAQ and humidity control. We are a full-service HVAC contractor providing troubleshooting, repair, replacement, and upgrade services, including commercial solutions and maintenance memberships for ultimate peace of mind.
For more information about improving IAQ and humidity for better comfort and health in Tampa, contact Ahoy! Cooling & Heating today.
