Background:

Amy and her family have lived in Boise for several years. The winters are cold, and while they keep their thermostat set to a comfortable temperature of around 68°F during the day, their heating bills have been rising steadily each year. Despite having a relatively modern HVAC system, the house always seems chilly in the winter, and they frequently find themselves cranking the heat up to compensate. This year, their utility bill was significantly higher than in previous years, even though they didn’t use the heater any more than usual.

Problem:

Amy decides to check the attic after noticing that the second floor of their home feels colder than the first floor, especially at night. She finds that there’s some insulation, but it looks uneven and much thinner in some areas. In certain places, the insulation is compressed, and in others, it’s settled lower than the surrounding areas, leaving gaps where heat can escape. There’s also some visible wear and tear on the existing insulation, likely due to age and settling.

Why More Insulation is Needed:

1. Settling Insulation: Over time, blown-in insulation can settle and lose its effectiveness. If the attic hasn’t been upgraded in years, the insulation might no longer be providing the required R-value to prevent heat loss. In Boise’s climate, this can lead to significant heat escaping through the roof during the winter months.
2. Compression: Insulation that is compressed, whether by foot traffic or improperly installed ductwork, loses its R-value. In areas where the insulation has been compacted, the home’s energy efficiency would decrease significantly, making it harder to maintain a comfortable temperature.
3. Under-Insulated Attic: Based on her findings Amy suspects that the attic’s R-value is far below the recommended range of R-49 to R-60. Without enough insulation, heat from the living areas rises into the attic and escapes into the outside air, making the furnace work harder to keep the house warm. This leads to higher energy consumption and rising utility bills.
4. Poor Air Sealing: If the attic isn’t properly sealed around vents, chimneys, or around the attic hatch, cold air can infiltrate from the outside, further exacerbating the heat loss. Amy notices some draftiness near the ceiling and around the attic door. These air leaks combined with insufficient insulation are making it harder for her home to stay warm.

Solution:

• Add More Insulation: Amy contacts 3e Insulation to get her attic inspected and the insulation upgraded. The inspector recommends adding more blown-in cellulose or fiberglass to bring the R-value up to at least R-49 (ideally closer to R-60). This will help prevent heat loss and ensure the house stays warmer during the cold Boise winters.
• Air Seal the Attic: In addition to adding more insulation, the contractor recommends air sealing any gaps and cracks around vents, chimneys, and the attic door. Sealing those leaks will prevent cold drafts from entering the living spaces, improving overall comfort and energy efficiency.
• Upgrade Ventilation (if necessary): If there is inadequate attic ventilation, the contractor may also suggest installing or improving ventilation to prevent moisture buildup, which can damage both insulation and the roof structure.

Outcome:

After the additional insulation and air sealing are completed, Amy notices a significant drop in her heating bills over the next few months. The house feels warmer, and the temperature is more consistent across all levels of the home. Amy is able to keep her thermostat set at a lower temperature while maintaining a comfortable environment, and her utility bills return to a more manageable level.

In Summary:

This scenario illustrates how a combination of settled, compressed, or insufficient insulation can lead to higher energy costs and discomfort in a home. For someone like Amy, who is dealing with rising heating costs in the winter, adding more attic insulation—along with sealing air leaks—can make a significant difference in reducing heat loss and improving energy efficiency.