Usgbc Cool Roof Data

This system has been put into an online directory of more than 850 roofing products and is available for energy service providers building code bodies architects and specifiers property owners and community planners.

Usgbc cool roof data. Benefits of cool roofs. 78 steep sloped roof 2 12. A cool roof is a roofing system that delivers higher solar reflectance the ability to reflect the visible infrared and ultraviolet wavelengths of the sun reducing heat transfer to the building and higher thermal emittance the ability to radiate absorbed or non reflected solar energy than standard designed roofing products. That cool roofs would bring to los angeles including reduced smog formation reduced heat related illness death and increased energy savings.

Cool roofing is commonly specified in energy code or green building rating systems. Cool roof rating council crrc has created a rating system for measuring and reporting the solar reflectance and thermal emittance of roofing products. Starting october 1 2014 the 2014 los angeles green building code requires that roofing material used in residential buildings meet minimum values for 3 year aged solar reflectance and thermal emittance or for sri. Commercial buildings are benefiting from cool roof savings throughout the usa even in northern climates and that is fundamentally shifting the roofing marketplace.

Green building council s voluntary green building certification system. Cool roof rating council crrc oak ridge national laboratories ornl cool roof savings calculator. Cool roof rating council. City of los angeles cool roof ordinance building code requirements.

Leed is the u s. Historically cool roofs have been either white. The cool roof rating council provides radiative property data on roof surfaces to improve the energy efficiency of buildings while positively impacting the environment. Cool roofs are changing the roofing industry.

Listing programs such as the cool roof rating council crrc and energy star keep records of these properties for verification and public referral. One way to make a decision is to use the solar roof index sri to evaluate a cool roof. 3 year aged sri. Leed version 2 2 is the first national specification to use a relatively new measure of reporting a cool roof s properties.

Recognizing the array of benefits and the untapped potential for residential roofs the city council unanimously approved a residential cool roof requirement as part of the los angeles green building code. Parking cover 39. From rural areas to urban cities and everything in between a cool roof can be implemented to suit the needs of almost any building. 29 parking cover 29 leed v4.

Cool roofing is known to be very affordable overall with energy savings ranging from 7 15 of total cooling costs. Steep sloped roof 2 12. For example epdm was the most popular single ply membrane in the industry in 2003. Low sloped roof 2 12.

Green building council s leed 2 2 uses sri as a way to evaluate a cool roof. Minimum sri for cool roof materials in leed 2009 vs. Under leed version 4 1 2019.