Abstract
The increasingly widespread use of galvanized roofs certainly has an effect on the occupants in the room below. Among them is a hot room temperature. For that reason, it is necessary to make new discoveries in the field of composites of natural materials to overcome them because most natural materials, especially natural stone, have low thermal conductivity, which means they can inhibit heat propagation. This study sought to ascertain how much andesite natural stone powder, combined with epoxy, can lower the room temperature when it is layered on a galvanized roof. Different amounts of natural stone powder applied to a galvanized roof results in different thermal conductivities. The temperature readings were taken at a height of 20 cm above the roof, right at the bottom galvanic, as well as the temperature in the room below. Our results showed that adding andesite natural stone powder to the roof was able to lower the room temperature, and the thicker the composite layer in coating the galvanized roof, the lower the room temperature under the roof.
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