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What to Know About Mechanical Ventilation

Our mission is to help homeowners save money, stay healthy and live comfortably. By ensuring that homes have proper insulation and conducting energy audits for the Maryland area, we can help you and your family breathe in clean air.

Mechanical ventilation is important in making sure that the air you breathe inside your home is safe and clean. Outdoor air can flow through homes and buildings by infiltration, but it is not enough.

Problems with Infiltration

With air infiltration, you are unable to effectively monitor how much air is entering your home. There is no control over how much air you are getting. Also, the areas that the air comes through can be problematic.

Indoor Air Quality

Each area has its set of pollutants:

  • Attic
    • Insulation fibers
    • Dust
    • Rodent feces
  • Garage
    • Carbon monoxide
    • Pesticides
    • Gasoline
    • Fertilizers
  • Crawlspaces
    • Mold
    • Dust
    • Lead
    • Radon
    • Moisture
    • Termiticide
  • Outside
    • Pollen
    • Auto fumes
    • Dust

These pollutants negatively impact your indoor air quality. The air is harmful for you, your family and pets to breathe. By conducting an energy audit, we can pinpoint where and how air leaks in your home. We will test any combustion appliance, measure the insulation R-values and air leakage rate, examine window construction and quality of door weather stripping, review your past utility bills and evaluate our lighting and appliances.

Mechanical Solution

Mechanical ventilation has many benefits including better indoor air quality, more control and improved comfort. These ventilation systems can remove allergens, pollutants and moisture that causes mold. These systems use ducts and fans to circulate fresh air. There are three common mechanical ventilation systems.

  1. Supply Ventilation Systems: This type of system is for hot or mixed climates, draws fresh air through an intake vent and distributes it to different rooms by a fan and duct system. Outside air intakes can be connected to the main return duct, allowing fresh air to be dispersed. A benefit of this is that the air can be air conditioned or dehumidified before going into your home.
  2. Exhaust Ventilation Systems: This system is great for colder climates. Indoor air is exhausted outside using one or more fans which can be found in bathrooms. Because this process is continual, the home becomes slightly depressurized.
  3. Balanced Ventilation Systems: This system is great for all climates. Equal amounts of air are cycled through your home by two different fans.

If you wish to learn more about mechanical ventilation or schedule a home energy audit in Maryland, call us at 800-219-3484 or visit our website.

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