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JIS A 1493:2021

JIS A 1493:2021

$32.50

Thermal performance of windows and doors –– Determination of solar heat
gain coefficient using solar simulator

Published By Publication Date Number of Pages
JIS 2021-02-22 71
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This Standard specifies a method to measure the solar heat gain coefficient of complete windows and doors using a solar simulator.

This Standard applies to windows and doors

a) with various types of glazing (glass or plastic; single or multiple glazing; with or without low emissivity coatings, with or without paper sliding sashes, and with spaces filled with air or other gases),

b) with opaque panels,

c) with various types of frames (wood, plastic, metallic with and without thermal barrier or any combination of materials)

d) with various types of shading devices (blind, screen, paper sliding sash or any attachment with shading effects)

e) with various types of active solar fenestration systems [building-integrated PV systems (BIPV) or building-integrated solar thermal collectors (BIST)].

This Standard does not include the following :

f) shading effects of building elements (e.g. eaves, sleeve wall, etc.);

g) heat transfer caused by air leakage between indoors and outdoors;

h) ventilation of air spaces in double and coupled windows;

i) thermal bridge effects at the rebate or joint between the window or door frame and the rest of the building envelope.

This Standard does not apply to the following :

j) bay windows;

k) curtain walls;

l) industrial, commercial and garage doors.

NOTE 1 Solar simulators are specified in JIS C 8904-9.

NOTE 2 The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows.

ISO 19467 : 2017 Thermal performance of windows and doors — Determination of solar heat gain coefficient using solar simulator (MOD)

In addition, symbols which denote the degree of correspondence in the contents between the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/IEC Guide 21-1.

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JIS A 1493:2021
$32.50