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Doug Wall, CIE

HVAC Mold Problem in Naples

As state licensed mold inspectors serving the city of Naples, FL., we encounter a wide variety of indoor mold problems. One of the most common mold problems in homes and/or buildings we repeatedly come across is leaving doors and windows open for extended timeframes while the air conditioner is running in "cool" mode. In Naples sub-tropical climate where the average outdoor humidity is around 60% or higher most of the time, air conditioning vents and/or ductwork surfaces are more acceptable of reaching dew point (e.g. condensate, sweat), especially when the right combination of hot and cold air temperatures mix. Organic particulates that have settled out at these locations serve as nutrients for mold growth when sufficient moisture is available.

Supply vent with mold growth
Naples home with mold problem

 Remember to turn your AC off in your Naples home if you have your doors and windows open for an extended time. The HVAC system tries to cool the whole outdoors, the supply vents sweat/ cold air coming out/ warm air from outdoors coming in. Like a glass of water with ice. Supply vents become wet and collect dirt- which can be food for mold. The moisture can also be absorbed by furniture, drapes and carpet, etc and again grow mold there. You should always avoid mold growth in your Naples home

Second supply vent with mold growth
Photo of mold in Naples AC supply vent

Naples residents must understand that you never leave your HVAC thermostat set in the "on" position for days at a time. In the “Auto” position the varying room temperatures cause the condenser to run longer which removes more moisture from the air, lowering the homes humidity level. 

Many Naples homeowners want the air movement with the fan “on” but this does not allow the condenser (unit outdoors) to do its job.

3rd supply vent in Naples home
mold growth in HVAC duct

It is also very important to have the thermostat’s fan always set in the “Auto” position and not in the “On” position. If the air handler unit’s fan runs continuously in the “On” position, condensation at the air handler unit's evaporator coil that is suppose to drain out is blown and evaporated right back into your home; potentially raising the indoor relative humidity and/or causing surfaces to reach dew point. Above are three (3) different digital photo examples of these scenarios from inspections performed in Naples, FL.

Naples / Bonita Springs:(239) 498-4619
Cape Coral / Ft Myers: (239) 948-9717

Our Experienced professionals have served Naples, Bonita Springs, Ft Myers, Cape Coral and all of Southwest Florida since 1999.  ALL of our Mold Assessors are Certified Indoor Environmentalists (CIE).

State of Florida Licensed Mold Assessor MRS #5

John Cosgrove, CIE  has proven his ability to solve Naples homeowners and businesses mold concerns by identifying the problem and then the  source of the mold contamination. His detailed reports with recommendations for corrections not only benefit the homeowner but the remediation company. Remediators know what to cleanup with his mold reports.

Florida DOH Certified Radon Measurement
FL DOH Certified R1867

 Greg Gomez, CIE
Greg’s knowledge of the national standards for mold cleanup “S520” and his 9 years of experience as a Naples indoor air quality professional allow him to write detailed recommendations for any mold cleanup.  Any mold remediation should follow accepted industry standards to protect the consumer.

Naples / Bonita Springs:(239) 498-4619
Cape Coral / Ft Myers: (239) 948-9717

Please contact our office to schedule:
Radon Tests / Mold Assessments (inspections) & Sampling
Formaldehyde & VOC Tests / Allergen Screening

Radon & Mold Professionals Toll free: (800) 881-3837
188 1st Street, Bonita springs, FL 34134 .... (239) 498-4619
188 1st Street, Bonita Springs, FL 34134 .... (239) 948-9717

radonandmoldprofessionals@gmail.com or radonandmoldprofessionals@comcast.net

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