Roofing With 3 Years Minimun Reflectance

Resources Leedcool Roof Rating Council

Resources Leedcool Roof Rating Council

Ce Center Cool Roofs For A Hot Planet

Ce Center Cool Roofs For A Hot Planet

Confindustria Ceramica

Confindustria Ceramica

Energy Star Roofing Cool Metal Roofing Kynar Mcelroy Metal

Energy Star Roofing Cool Metal Roofing Kynar Mcelroy Metal

Https Www Co Fresno Ca Us Home Showdocument Id 8294

Https Www Co Fresno Ca Us Home Showdocument Id 8294

Https Www Nps Gov Tps Sustainability Greendocs Doe Coolroofguide Sm Pdf

Https Www Nps Gov Tps Sustainability Greendocs Doe Coolroofguide Sm Pdf

Https Www Nps Gov Tps Sustainability Greendocs Doe Coolroofguide Sm Pdf

Only those roof products that meet the specifications listed in either table 1 or table 2 below may qualify as energy star qualified.

Roofing with 3 years minimun reflectance.

Effective january 1 2010 the standards will require that a cool roof material meet an aged solar reflectance value 3 year testing provided by the cool roof rating council crrc. The requirements apply to new construction and to retrofits or additions that replace or re coat at least 2 000 ft 2 of roof space for nonresidential buildings and 1 000 ft 2 of roof space for. You can install one with a three year aged solar reflectance index sri of 64 or you can instead opt for one with an aged sri of 55 combined with an aged thermal emittance of 0 75 or. Owens corning asphalt shingle products labeled as cool are rated with the cool roofing rating council ccrc for solar reflectance and thermal emittance.

The doe uses the low sloped cool roof definition from table 1 and defines steep sloped cool roofs as those with a 3 year aged sri of 29 or greater. The energy star program specifies minimum solar reflectance low slope. California s building energy efficiency standards for residential and nonresidential buildings title 24 part 6 contains requirements for the thermal emittance three year aged reflectance and solar reflectance index sri of roofing materials used in new construction and re roofing projects. 0 65 initial 0 50 aged.

Reflectance refers to the roofing material s ability to reflect the energy coming from the sun instead of absorbing it. A cool roof on residential buildings is defined as one with a 3 year aged solar reflectance of at least 0 20 and an infrared emittance of at least 0 75 or minimum sri of 16 in climate zones 10 through 15 for steep slope applications greater than 2 12 and where the roofing product has a density less than 5 pounds per square foot. Use roofing materials that have an sri equal to or greater than the values in table 1 meet the three year aged sri value if three year aged value information is not available use materials that meet the initial sri value for a minimum of 75 of the roof area of all new buildings within the project or install a vegetated green roof for at least 75 of the roof area of all new buildings within the project. If you re following iecc you have a couple of options for roof materials.

Materials lacking 3 year aged tested values for either solar reflectance or thermal emittance shall be assigned both a 3 year aged solar reflectance in accordance with section c402 3 1 and a 3 year aged thermal emittance of 0 90. Steep slope roofs must have an initial solar reflectance of 0 25. Aged solar reflectance tested in accordance with astm c 1549 astm e 903 or astm e 1918 or crrc 1 standard. Innate reflectance is measured on a scale from 0 to 1 with the latter being the highest level of reflectivity meaning it reflects 100 of all radiant energy coming in contact with it.

Http Www Dnr Louisiana Gov Assets Tad Builders Guide Chapter 10 Pdf

Http Www Dnr Louisiana Gov Assets Tad Builders Guide Chapter 10 Pdf

3 2 Opaque Envelope Assembly

3 2 Opaque Envelope Assembly

Http Www Ontarioca Gov Sites Default Files Ontario Files Building Cool Roof For Low Rise Residential 2016 Stds Pdf

Http Www Ontarioca Gov Sites Default Files Ontario Files Building Cool Roof For Low Rise Residential 2016 Stds Pdf

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Http Www Sjgov Org Commdev Cgi Bin Cdyn Exe Handouts Building Coolroofcochandout Pdf

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Https Www Buildsite Com Pdf Gaf2 Leed Gaf Green Building Playbook 1493401 Pdf

Fundamentals Of Building Construction Materials Methods 5 Th Edition Copyright C 2009 J Iano All Rights Reserved S Teep R Oofs 16 R Oofing Ppt Download

Fundamentals Of Building Construction Materials Methods 5 Th Edition Copyright C 2009 J Iano All Rights Reserved S Teep R Oofs 16 R Oofing Ppt Download

Fundamentals Of Building Construction Materials Methods 6 Th Edition Copyright C 2013 J Iano All Rights Reserved 16 Roofing L Ow S Lope R Oofs Ppt Download

Fundamentals Of Building Construction Materials Methods 6 Th Edition Copyright C 2013 J Iano All Rights Reserved 16 Roofing L Ow S Lope R Oofs Ppt Download

Http Ladbs Org Docs Default Source Forms Plan Check 2017 Green Building Code Correction Sheet For Additions And Alterations Residential Pdf Sfvrsn 10

Http Ladbs Org Docs Default Source Forms Plan Check 2017 Green Building Code Correction Sheet For Additions And Alterations Residential Pdf Sfvrsn 10

Is It Cool Professional Roofing Magazine

Is It Cool Professional Roofing Magazine

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Https Www Bestmaterials Com Pdf Files Pvc Membrane Reinforced Pdf

3 6 Envelope Features

3 6 Envelope Features

Chart Of Sri Values Berridge Manufacturing Co

Chart Of Sri Values Berridge Manufacturing Co

Ceu Evaluating Real World Performance Of Field Aged Tpo Roofs 2020 09 02 Building Enclosure

Ceu Evaluating Real World Performance Of Field Aged Tpo Roofs 2020 09 02 Building Enclosure

Agway Metals Inc

Agway Metals Inc

A Literature Review On The Improvement Strategies Of Passive Design For The Roofing System Of The Modern House In A Hot And Humid Climate Region Sciencedirect

A Literature Review On The Improvement Strategies Of Passive Design For The Roofing System Of The Modern House In A Hot And Humid Climate Region Sciencedirect

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Https Www Firestonebpco Com Content Dam Fsbp Migrated Document Latam En 16 169604 Pdf

Http 3in1roof Com Test Results Pdf

Http 3in1roof Com Test Results Pdf

Https Nerca Org Wp Content Uploads 2018 04 Building Code Update Pdf

Https Nerca Org Wp Content Uploads 2018 04 Building Code Update Pdf

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Https Encrypted Tbn0 Gstatic Com Images Q Tbn 3aand9gcqrn5ygh7ygz1l Usncsvjmsqhpq27fjsxvoajlqbfo1sg12ogj Usqp Cau

Solar Reflectance An Overview Sciencedirect Topics

Solar Reflectance An Overview Sciencedirect Topics

Energy Code Terminology Ppt Video Online Download

Energy Code Terminology Ppt Video Online Download

Https Www Cityofpaloalto Org Civicax Filebank Documents 19230

Https Www Cityofpaloalto Org Civicax Filebank Documents 19230

Title 24 Cool Roofs For California Homeowners And Building Owners

Title 24 Cool Roofs For California Homeowners And Building Owners

Buildings Free Full Text Reflective Roofing Use On Commercial Buildings In The United States An Energy Type And Cost Analysis Html

Buildings Free Full Text Reflective Roofing Use On Commercial Buildings In The United States An Energy Type And Cost Analysis Html

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