Solar heat gain and u factor.
Nfrc 100 200 window.
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Nfrc recently implemented a new requirement nfrc 706 under its product certification program requiring insulating glass units igus used in nfrc certified and labeled products to be certified as meeting certain performance requirements by an independent ig certification program igc program s listed by.
Door specific rating the circled value shows you the rating a door has received.
Nfrc 100 is a set of procedures and guidelines for determining the u factors of windows and doors.
This standard combined the following standards into one document.
The window u factor shgc vt cr values presented in this report were determined using the therm and window computer programs in full compliance with nfrc 100 2010 200 2010 and 500 2010 and from information supplied by the manufacturer.
National fenestration rating council the nfrc certification program offers fenestration window and door manufacturers a third party verified nationally recognized method for demonstrating product u factor solar heat gain c.
Nfrc 200 is similar to 100 except it is used to determine the solar heat gain coefficient shgc and visible transmittance vt of windows and doors.
The voluntary specification for windows and glass doors establishes performance standards suitable for a majority of project applications.
Nwwda i s 2 for wood window units i s 3 for wood sliding patio doors and i s 8 for wood swinging doors.
Nfrc national fenestration rating council what are nfrc 100 and nfrc 200.
This radiation can cause your home to heat regardless of outside temperature which may be favorable or unfavorable depending on.
Both are technical documents intended for use by testing labs and other window and door.
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Due to ongoing product changes updated test results or new industry standards or requirements this data may changeover time.
Nfrc ratings are based on modeling by a third party agency as validated by an independent test lab in compliance with nfrc rpogram and procedural requirements.
Nfrc information thermal windows inc.
Each rating is split into two values.
Solar heat gain coefficient measures how well a product can resist unwanted direct or indirect solar radiation.
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Notice to consumers and other interested stakeholders regarding ig certification.
Nfrc 100 200 300 400 500.
