What Are The Major Sources of Air Infiltration img

What Are The Major Sources of Air Infiltration or Air Leakage in a Building

Air infiltration, or air leakage, is a common problem in many buildings, especially older ones. Air infiltration occurs when outside air enters the building through cracks, gaps, and other openings in the building envelope. This can lead to a number of problems, including reduced energy efficiency, poor indoor air quality, and increased heating and cooling costs. Here are the major sources of air infiltration or air leakage in a building:

Windows and doors: Windows and doors are often the biggest sources of air infiltration in a building. Gaps and cracks around window frames and door frames can allow outside air to enter the building.

Walls: Even well-built walls can develop cracks and gaps over time, allowing air to seep through. Poorly sealed electrical outlets and light fixtures in the walls can also contribute to air infiltration.

Attic and roof: Leaks in the roof or attic can allow outside air to enter the building. Poorly insulated attics can also contribute to air infiltration.

HVAC systems: Heating, ventilation, and air conditioning (HVAC) systems can be a major source of air infiltration if they are not properly sealed or insulated. Ductwork can develop leaks or gaps, allowing air to escape.

Chimneys and vents: Chimneys and other vents on the roof or walls can allow outside air to enter the building if they are not properly sealed.

Foundation: Cracks or gaps in the foundation can allow air to enter the building from below.

Reducing air infiltration in a building is important for improving energy efficiency and indoor air quality. Common solutions include sealing gaps and cracks in the building envelope, adding weatherstripping to windows and doors, and improving insulation in the attic and walls. A professional energy audit can help identify specific areas of air infiltration in a building and recommend solutions to address the problem.

At Window Door Specialists, we offer a variety of energy-efficient windows and doors that can help reduce air infiltration and improve the energy efficiency and comfort of your home or building. Contact us today to learn more about our products and services.

The Window And Door Specialist