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Additional
Information
Additional
Information for Window Film Manufacturers
Introduction
The
National Fenestration Rating Council, Incorporated ("NFRC")
has developed and operates a uniform national rating system for
energy performance of fenestration products, including windows,
doors, skylights, and similar products. The linchpin of the Rating
System is a procedure for determining the thermal transmittance
("U-factor") of a product. The U-factor rating procedure
is supplemented by procedures for rating products for solar heat
gain coefficient ("solar heat gain" or "SHGC"), visible
transmittance ("VT"), air leakage ("AL"),
and condensation resistance ("CR"). Together, these
rating procedures, as set forth in documents published by NFRC,
are known as the NFRC Rating System.
The
Rating System employs computer simulation and physical testing
by NFRC-accredited laboratories to establish performance ratings
for fenestration products and product lines. The Rating System
is reinforced by a certification program under which fenestration
manufacturer's/responsible parties may certify and label fenestration
products to indicate those performance ratings, if the ratings
are authorized for certification by an NFRC-licensed independent
certification and inspection agency ("IA"). The requirements
of the rating, certification and labeling program (the "Certification
Program") are set forth in the
NFRC PCP-2009.
To
become a participant in the NFRC Certification Program, please
contact the NFRC office at 301-589-1776 or by e-mail at pcp@nfrc.org
to request an NFRC Certification Program packet.
To
download the packet now, click here;
please note: be sure to request an
NFRC License Agreement from the NFRC directly, as this information
is not included in the packet download and is required to be completed
before certification authorization of any product can be obtained.
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