In which type of construction is conventional liquid termite treatment NOT recommended?

The question addresses the effectiveness of conventional liquid termite treatments in relation to different types of construction. Conventional liquid treatments involve applying products that create a treated barrier in the soil to prevent termite entry into structures.

Concrete block foundations with basement windows below grade are not suitable for conventional liquid termite treatment primarily due to the specific construction characteristics of such buildings. In these types of foundations, moisture can accumulate and contribute to the overall movement of soil and termites. The presence of below-grade windows can create a pathway for termites to enter, circumventing the protective barrier established by liquid treatments. Additionally, the porous nature of concrete blocks can also absorb moisture, further complicating the treatment effectiveness.

In contrast, wood frame houses, metal frame buildings, and single-story homes typically present more straightforward scenarios for applying liquid treatments, as the barriers can more effectively address soil contact systems without the complications introduced by below-grade windows or other structural features that could allow termites access despite the treatments.