Cool Roof Technology Journals

Standard or dark roofs can reach temperatures of 150 f or more in the summer sun.

Cool roof technology journals.

With all the focus on green building these days the market is heating up with interest in cool roof technology. This project has b. This article throws light on cool roof technology with a special emphasis on its suitability in the indian context. It is a relatively cheap option with substantial benefits.

Advances in building energy research. Cool roofs achieve this by reflecting some of the infrared ir light from the sun. Cool roofs can be made of a highly reflective type of paint a sheet covering or highly reflective tiles or shingles. In today s market a cool roof is defined by the reflectivity and emissivity requirements set by either title.

This results in lower absorption of solar heat and a cooler roof. A cool roof under the same conditions could stay more than 50 f cooler and save energy and money by using less air conditioning. Yet you may not be familiar with what exactly the term means so let s give you a quick primer on cool roof technology with a special emphasis on its suitability in the indian context. The study includes experiments and thermal modelling.

This cool roof technology was demonstrated under the cool roof and passive ventilation project implemented by taru leading edge pvt. It is a relatively cheap option with substantial benefits. Active cool roof effect. A cool roof is a roof that reflects more sunlight and absorbs less heat than a standard roof lowering roof temperature and releasing less heat into the environment.

7 mitigating urban heat island using cool roof technologies pp. Highlights we studied the energy impact of a cool roof in an office building in london. Roof reflectivity of 0 6 0 7 is optimum for london climate. Cool roofs is a green building technology that is especially suited to the climate of india.

Roof temperature is rated via solar reflectance and thermal emittance with ratings ranging between 0 and 1. Cool roofs is a green building technology that is especially suited to the climate of the india. Impact of cool roofs on cooling system efficiency. Overall energy demand reduces between 1 and 8 5 relative to an albedo of 0 1.

Cool roof requirements vary by region but generally are based on solar reflectance and. Thermal comfort improves by 2 5 c but heating demand increases by 10. What constitutes a cool roof. A cool roof prevents heat absorption by reflecting the sun s heat and then emitting its radiation back into the atmosphere.