Heat loss is the cause of significant energy waste in residential buildings. You might be surprised, however, to find that air leakage through infiltration is the most significant source of wasted energy.
Buildings lose heat in five basic areas. Heat is lost through structural areas like ceilings, walls and floors. Doors and windows create heat loss as well, simply by opening and closing and conducting energy outdoors. The last of the five categories or areas of heat loss is infiltration of air (basically air leakage) around windows, doors and in cracks in walls and floors.
Regardless of what you may have always understood to be true, infiltration and air leakage makes up the largest single percentage of heat loss in a residential building. Let’s look at the percentages of heat loss in a typical residential building:
- Infiltration / air leakage: 35%
- Windows and Doors: 18% – 20%
- Floors: 15% – 18%
- Walls: 12% – 14%
- Ceilings: 10%
Insulation and high quality building materials will create efficiency in many of the areas listed. Even with these measures, however, your building will continue to experience heat loss until you address the issue of infiltration and air leakage.
The air seal experts at Green Sentry Solutions understand the role of properly sealed windows in reducing building heat loss. We’ve developed products designed to help you seal around window and wall mounted AC units and significantly reduce heat loss in your multi-family buildings. Contact Green Sentry Solutions at (855) 477-3300 for a complimentary consultation.