ROLE OF VEGETATION IN ENHANCING THERMAL COMFORT IN RESIDENTIAL BUILDINGS IN KOFARE ZONE 3 JIMETA, YOLA.

ABSTRACT This research investigates the role of vegetation in enhancing thermal comfort in residential buildings, with a particular focus on Kofare Zone 3 in Jimeta–Yola, Nigeria. Rapid urbanization, poor environmental planning, and the increasing reliance on mechanical cooling systems have contributed to high indoor temperatures and discomfort in many homes. The study aimed to examine how vegetation influences thermal comfort, assess the effects of different vegetation types and orientations, and identify strategies to improve indoor environmental quality. A quantitative research approach was employed, and data were collected from 50 residents through structured questionnaires. The results revealed that vegetation plays a significant role in moderating thermal conditions by providing shade, reducing solar radiation, and cooling the surrounding air through evapotranspiration. It was observed that large-canopy trees and well-oriented vegetation, particularly on the east and west facades of buildings, were more effective in reducing indoor temperatures. Additionally, the use of native, drought-tolerant plant species and regular maintenance enhanced vegetation performance and ensured sustained cooling effects. The study concludes that integrating vegetation into residential building design is a sustainable, cost-effective solution for improving thermal comfort and reducing dependence on mechanical cooling systems. It recommends that urban planners, policymakers, and homeowners prioritize vegetation planning and maintenance as a key component of residential development in hot climates.