Tips For Designing Your New HVAC System To Prevent Mold Growth

You likely know that mold can grow on wet grout in bathroom and in any other areas that stay damp. What you may not know is that your HVAC system plays an important role in preventing mold from growing inside your home. If you are purchasing a new HVAC system, make sure you design it correctly and keep it maintained so you can prevent mold from growing inside your home to keep you and your family healthy. Below are two things you should consider when designing your system.

Make Sure Surfaces Are Cleanable

No matter how well you take care of your HVAC system, you will have problems at some point. For example, dirt will build up on duct surfaces and coils, and there will be leaks. To help with this problem, you need to choose the right type of materials and finishes that are used in the ductwork and air handler surfaces. In the past, insulation was installed on the interior surfaces of the ductwork to make the HVAC quiet and to reduce the amount of airflow loss.

This insulation is known to trap dirt and moisture from the air handler. The result of this is a place for mold to grow. Once the mold gets inside the insulation, it is impossible to remove because the insulation has a porous finish.

Ask the HVAC contractor to make the interior surface of the ductwork and air handlers are cleanable and smooth. In most cases, you will find ductwork today that uses no insulation but instead is double-walled to prevent moisture. If insulation is used, it is placed on the exterior surface of the ductwork instead of the interior.  This will allow you or a technician to easily see any mold and clean it off.

Deal with Condensation in Drain Pan

Because mold loves moisture, condensation buildup in your HVAC system's drain pan is the perfect place for it to grow. Where you find this drain pan depends on the brand of HVAC unit you have.

The pan collects moisture that condenses on and falls off the coils. If working correctly, the moisture in the pan drains away. If there are problems, however, this moisture stays in the pan, causing the water to spill over and going into the ductwork and the air handler interior.

Over time, condensate drain pains will leak and start to corrode, causing the water to flood the ductwork. Once these surfaces become wet, mold will grow very quickly. Many times, a drain pan that is installed on an HVAC system is only slightly sloped. More effective drain pans have a much larger slope so water will not be able to stay in it, even if there is a problem with the pan. Make sure the HVAC technician installs the drain pan in this way.

For more information, contact A -1 Cooling & Refrigeration Inc or a similar company.


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