Other kinds of radiant barriers combine reflective materials (usually aluminium foil) with materials like plastic films, cardboard and kraft paper. The most effective radiant barrier sheathing is a structural roof sheathing panel which consists of an OSB panel with heat-reflecting foil laminated to one side. The hotter the attic, the more the heat moves down to the cooler building below. While heat is radiated and conducted in all directions it always moves from hot areas to cold areas. Convection is when heat is transferred through the air inside the attic and heats the insulation and conduction occurs when heat moves through the insulation to the building below. Radiation (infra-red) is augmented by convection and conduction. Radiation from the sun is the primary source of heat affecting your attic temperature. While radiant barriers do contribute significantly to the reduction of cooling (and in some cases heating) costs, they are not the panacea to energy efficiency some make them out to be they need to be utilized as part of a cohesive building envelope. It’s also a fact that the color and reflectance of a substance doesn’t add to its efficiency as a radiant barrier. NASA has employed radiant barriers since the Apollo program for use on equipment, astronaut suits and spacecraft to protect against thermal radiation and for insulation in the fluctuating temperatures of space. They were not, for example, invented by NASA, but rather by the far less exciting German businessmen Schmidt and Dykerhoff in 1925. Radiant barriers have become somewhat shrouded in urban myth.
A radiant barrier can lower that heat transfer, keep the attic space cooler and lower cooling costs by up to 17% in warmer climates. The temperature of the attic space increases and that heat is transferred to the building below increasing summer energy consumption and cooling costs.
Attics heat up when the sun’s radiant energy heats the shingles and the heat is transferred to the interior attic space through the roofing materials via conduction. It does not store any personal data.Radiant barriers are utilized to reduce summer heat gain in attics. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly.
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