News & Tips

Central air conditioning and mold problems in Florida homes

With virtually every home having central air conditioning in Florida, one would think all the bugs in these systems have been worked out by now.  Think again.  Whether new or old, AC systems can cause mold issues in our homes if they are not installed with a little thoughtfulness. Many systems are installed with the air handler located in the garage or attics.  This means that they operate in what is termed unconditioned space, or in other words, in a room that is full of warm moist air.

A guiding principle when installing a system in these locations is never let the warm moist air get into the air handler cabinet.  The next time you look at one of these air handler cabinets, check out how many holes or penetrations you can see.  Each one of these of these holes is a pathway for that warm moist air to get in and cause trouble.

Typical entry points for are shown in the photo.  Electrical connections and line set entry often have big gaps around them.  The suction action of the fan draws warm moist air into the system and that’s when the fun begins. Because the inside of the cabinet is cool, the moist air being drawn in will contribute to conditions where mold growth is possible, usually close to where it first enters.

The obvious and correct solution to this problem is to seal the holes.  Unfortunately, not many installers do this, but you can.  Foam sealants work great for these locations and any others you can find.  The mold growth produced from this scenario happens over time and may not cause immediate problems, but for systems that are several years old it may be prudent to open the cabinet and do a real thorough cleaning.

We will be posting other discussions about healthy indoor air down the road.

 

 

Radon in Our Homes

Many of us are a bit mystified by the idea of a colorless, tasteless, odorless gas being a hazard to our health.  Yet every year 21,000 people die from radon induced lung cancer.  By comparison, 5,000 die from second hand tobacco smoke.   That should be a reality...

read more

Roof leaks can cause mold growth

Water leaks in a roof can be more than an annoyance if they produce conditions that allow mold growth.   If a leak has occurred, it is important to get it repaired as soon as possible to avoid continued water intrusion into a ceiling or wall system.  Even a slow or...

read more

LEED 3.2 AIR QUALITY TESTING

Have you ever wondered how new buildings that have all sorts of innovative ways of saving energy and at the same time look like really nifty place to live or work in?   The answer is often that these projects are the result of involvement of the United States Green...

read more




Our goal is to provide home and business owners the means of achieving healthy indoor environments for their families and employees.

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Central air conditioning and mold problems in Florida homes

With virtually every home having central air conditioning in Florida, one would think all the bugs in these systems have been worked out by now.  Think again.  Whether new or old, AC systems can cause mold issues in our homes if they are not installed with a little thoughtfulness. Many systems are installed with the air handler located in the garage or attics.  This means that they operate in what is termed unconditioned space, or in other words, in a room that is full of warm moist air.

A guiding principle when installing a system in these locations is never let the warm moist air get into the air handler cabinet.  The next time you look at one of these air handler cabinets, check out how many holes or penetrations you can see.  Each one of these of these holes is a pathway for that warm moist air to get in and cause trouble.

Typical entry points for are shown in the photo.  Electrical connections and line set entry often have big gaps around them.  The suction action of the fan draws warm moist air into the system and that’s when the fun begins. Because the inside of the cabinet is cool, the moist air being drawn in will contribute to conditions where mold growth is possible, usually close to where it first enters.

The obvious and correct solution to this problem is to seal the holes.  Unfortunately, not many installers do this, but you can.  Foam sealants work great for these locations and any others you can find.  The mold growth produced from this scenario happens over time and may not cause immediate problems, but for systems that are several years old it may be prudent to open the cabinet and do a real thorough cleaning.

We will be posting other discussions about healthy indoor air down the road.

 

 

Radon in Our Homes

Many of us are a bit mystified by the idea of a colorless, tasteless, odorless gas being a hazard to our health.  Yet every year 21,000 people die from radon induced lung cancer.  By comparison, 5,000 die from second hand tobacco smoke.   That should be a reality...

read more

Roof leaks can cause mold growth

Water leaks in a roof can be more than an annoyance if they produce conditions that allow mold growth.   If a leak has occurred, it is important to get it repaired as soon as possible to avoid continued water intrusion into a ceiling or wall system.  Even a slow or...

read more

LEED 3.2 AIR QUALITY TESTING

Have you ever wondered how new buildings that have all sorts of innovative ways of saving energy and at the same time look like really nifty place to live or work in?   The answer is often that these projects are the result of involvement of the United States Green...

read more