An experimental research of thermal insulation and storage effect of turf roofs in winter

Abstract

This study was comparison between architecture models with turf roofs covered by Manilagrass (Zoysia matrella Merr.) and Kentucky Bluegrass (Poa pratensis L.) and simulation model with slab roof. The experiment was carried out in a natural winter environment and environmental control room, under the conditions of fixed time and fixed temperature. As a result, in the slab roof, temperature rose in comparison with Manilagrass and Kentucky Bluegrass during the day and under the condition of heating, but temperature fell at night and under the condition of stop heating. Compared with this result, turf roofs stored heat and had an advantage which suppress the temperature fall at night. Therefore, it is clear that turf roofs were hardly changing of temperature.