Cool Roof Technology Journals

Roof temperature is rated via solar reflectance and thermal emittance with ratings ranging between 0 and 1.

Cool roof technology journals. Cool roofs is a green building technology that is especially suited to the climate of india. 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. Cool roofs is a green building technology that is especially suited to the climate of the india. Standard or dark roofs can reach temperatures of 150 f or more in the summer sun.

A cool roof under the same conditions could stay more than 50 f cooler and save energy and money by using less air conditioning. Cool roof requirements vary by region but generally are based on solar reflectance and. The study includes experiments and thermal modelling. Cool roofs are designed to lower the temperature of your home in summer months making you more comfortable and potentially reducing your energy bill.

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. Impact of cool roofs on cooling system efficiency. This project has b. Active cool roof effect.

In light of this cool roofing is one of the main strategies used to prevent future occurrences of heat island effects cool roofing is an emergent and powerful technology used for temperature control of buildings and areas. It is a relatively cheap option with substantial benefits. 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.

Thermal comfort improves by 2 5 c but heating demand increases by 10. Highlights we studied the energy impact of a cool roof in an office building in london. This article throws light on cool roof technology with a special emphasis on its suitability in the indian context. This cool roof technology was demonstrated under the cool roof and passive ventilation project implemented by taru leading edge pvt.

Whereas darker traditional roofing materials absorb sunlight the reflective surfaces of a cool roof reflect it away. Advances in building energy research. Overall energy demand reduces between 1 and 8 5 relative to an albedo of 0 1. Cool roofs achieve this by reflecting some of the infrared ir light from the sun.

With all the focus on green building these days the market is heating up with interest in cool roof technology. What constitutes a cool roof. 7 mitigating urban heat island using cool roof technologies pp. This results in lower absorption of solar heat and a cooler roof.