What is the impact of insufficient attic ventilation?

Insufficient attic ventilation has several significant impacts, including reduced energy efficiency, accumulation of heat, and an increased risk of moisture damage.

When an attic is not properly ventilated, the heat generated by the sun can accumulate, raising the temperature in the attic space. This trapped heat can lead to increased cooling costs during hot weather because the air conditioning system has to work harder to maintain comfortable indoor temperatures. This directly contributes to reduced energy efficiency, as more energy is consumed to cool down the living areas beneath the attic.

Moreover, insufficient ventilation can lead to elevated humidity levels, especially in climates where warm air holds more moisture. This can create a favorable environment for moisture-related problems, such as mold growth and wood rot. Over time, these issues can cause significant damage to the structural integrity of the home and can lead to costly repairs.

By addressing both the heat accumulation and moisture risks, proper attic ventilation helps maintain a comfortable temperature, reduces energy bills, and protects the home from moisture damage. Therefore, the answer encompasses all these important factors.