HomeMy WebLinkAboutEnergy Calculation Form & Manual J's '.5
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Ener Efficiency Ratingsin Fiber lass Doors
Energy Y
A Y
8 Half light doorglass must be equal to or less than.25/.25 for U factor&SHGC
U-
10-
J . Doorglass largerthan half lights must be.30/.40 in North or North Central regions
Doorglass larger than half lights must be.30/.25 in South or South Central regions
0
F
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1/2' 1/2" 1/2' 1/2'Std 1" 1" 1"Std BBG BBG Std 1° Impact Impact Impact Impact
Clear Std Clear Low-E Clear Std low-E Clear Low-E Decorative Clear Std Std Low-E Decorative
N Low-E GBG GBG Low-E GBG (Closed) (Closed) Low-E GBG
Half Light U-Factor .28 .25 .29 .25 .27 .23 .23 .24 .21 .23 .25 .22 .22 .22
4r 36"&3/40val
i SHGC .20 .17 .17 .15 .20 .17 .15 .06 .03 .16 .17 .16 .14 .13
DTNT .21 .19 .18 .16 .21 .19 .16 - - .17 .20 .18 .16 .15
ST 28 28 28 28 32 32 32 35 35 32 35 35 35 35
t' 3/4 Light U-Factor .30 .27 .31 .26 .28 .24 .24 .26 .22 .24 .27 .24 .24 .24
48"&Large Oval SHGC .24 .21 .21 .18 .24 .21 .18 .07 .04 .19 .21 .19 .17 .16
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3 DTNT .25 .23 .22 .20 .25 .23 .20 - - .20 .24 .22 .19 .19
€ ST 28 28 28 28 - - - 35 35 32 35 35 35 35
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Full Light U-Factor .36 .32 .37 .31 .34 .28 .28 .30 .26 .28 .31 .26 .26 .27
C1
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64"&80" SHGC .31 .27 .27 .23 .31 .26 .23 .09 .05 .24 .27 .25 .22 .20
DTNT .33 .30 .28 .26 .33 .30 .26 - - .26 .32 .29 .25 .25
1 ST 28 28 28 28 30 30 30 35 35 32 35 35 35 35
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U-Factor:Defines the amount of heat loss.The lower the value,the less heat is transmitted through the entry door.
Solar Heat Gain Coefficient(SHGQ:The portion of directly transmitted and absorbed solar energy that enters
f'•I the interior.The lower the value,the less heat is transmitted through the entry.
T Daylight TransmissionMsibleTransmission(DTNT):Measures how much light comes through the entry.
The higher the value,from 0 to 1,the more daylight is let in over the unit area of the entry.
Sound Transmission(ST):Measures how much sound comes through the entry.
The higher the value,the more sound transmission is reduced.
The performance ratings above were developed by Architectural Testing using applicable NFRC procedures for determining
f; whole product performance.The ratings are determined for a fixed set of conditions and specs.
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