ZEMCH 2019 International Conference Proceedings April.2020 | Page 329
Table 2. Classification of the investigated fabrics according to the normalized score determined in this
work and performance classes according to the European standard EN 14501.
ID
N1
N2
N3
N4
N5
N7
N8
N6
N9
Color
White
Grey‐white
Black‐grey
White
Grey‐white
White
Grey‐white
Black‐grey
Black‐grey
OF (%)
1
1
1
3
3
10
10
3
10
Score [0‐1]
0.09
0.15
0.33
0.41
0.52
0.62
0.63
0.65
0.78
EN 14501 [0‐5]
1
1
2
1
1
3
3
2
4
All results presented in this paper will have to be confirmed during the next months by applying
the same protocol to more human subjects (up to 60). Afterwards, the next steps will be: 1. Evaluate the
answers to the other seven questions of the questionnaire; 2. Evaluate if the visual contact with the
outside can be satisfactorily correlated with known properties of the solar protection devices; 3.
Compare with other metrics (few); 4. Apply the same (or similar) methodology to other kinds of
shading devices such as external perforated curved louvers.
Author Contributions: Methodology, G.F., W.B., F.E., D.L., and S.V.; investigation, W.B. and G.F.; formal analysis,
G.F.; writing—original draft preparation, G.F.; writing—review and editing, W.B.; project administration, W.B.
Funding: This research was funded by the National Commission for Scientific and Technological Research
(CONICYT), Chile, under research grant FONDECYT 1181686. The authors also gratefully acknowledge the
research support provided by CEDEUS under the research grant CONICYT/FONDAP 15110020
Conflicts of Interest: The authors declare no conflict of interest.
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