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Influence on thermal and visual comfort
- EN 14501 |
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Performance characteristics and classification
of a solar protection device or roller
shutter regard to visual and thermal comfort.
The standard defines the technical characteristics of 4 typical glazings
(A, B, C, D)
for the calculation of the 'gtot' value and classifies the
thermal and visual comfort. |
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| Class |
0 |
1 |
2 |
3 |
4 |
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very little effect |
little effect |
moderate effect |
good effect |
very good effect |
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| Glazing |
U
(W/m²K) |
g |
Ts |
Rs |
Rs' |
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A |
5,8 |
l0,85 |
0,83 |
0,08 |
0,08 |
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B |
2,9 |
0,76 |
0,69 |
0,14 |
0,14 |
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C |
1,2 |
0,59 |
0,49 |
0,29 |
0,27 |
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D |
1,1 |
0,32 |
0,27 |
0,29 |
0,38 |
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| Total solar energy transmittance
gtot - Classification |
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gtot |
gtot>=0,50 |
0,35<=
gtot<0,50 |
0,15<=
gtot<0,35 |
0,10<=
gtot<0,15 |
gtot<0,1 |
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Class |
0 |
1 |
2 |
3 |
4 |
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| Glare control - Classification |
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Tv
dir % |
Tv
dif<2 |
2<=Tv
dif<4 |
4<=Tv
dif<8 |
Tv
dif>=8 |
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Tv dir>=10 |
0 |
0 |
0 |
0 |
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5<Tv dir<10 |
1 |
1 |
0 |
0 |
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0<Tv dir<=5 |
3 |
2 |
1 |
1 |
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Tv dir = 0 |
4 |
3 |
2 |
2 |
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| Visual contact with the outside
- Classification |
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Tv
dir % |
0<Tv
dif<4 |
4<=Tv
dif<15 |
Tv
dif>15 |
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Tv dir>=10 |
4 |
3 |
2 |
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5<Tv dir<10 |
3 |
2 |
1 |
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0<Tv dir<=5 |
2 |
1 |
0 |
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Tv dir = 0 |
0 |
0 |
0 |
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How to use this search engine. |
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Select your classifaction : you can select your
different classification from the dropdown menu.
Search on
- Total solar energy transmittance gtot classification.
- Glare control classification.
- Visual contact with the outside classification.
In order the classify fabrics by solar energy transmittance the kind of
fabric (exterior or interior)
and glazing type should be defined to specify
the exact classification.
It is advised to select your kind of fabric
(exterior or interior) and the type glazing from the dropdown menus.
Combined searched can be produced by selecting multiple classifications
from the dropdown menus.
(exp. select a class 2 from the total solar energy dropdown menu and a
class 1 fabric regarding glare control
from the glare control dropdown menu).
One should keep in mind that dark fabrics have good contact with the outside
but lesser glare control. |
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Total
solar energy transmittance gtot - Classification |
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Glare control - Classification |
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Visual contact with the outside
- Classification |
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