The effect of coated glazing on visual perception: A pilot study using scaleamodels

Abstract

A pilot study for investigating the effect of six coated glazing materials on visual perception of the interior and of the view out in scaled rooms is presented. The study, which involved 18 subjects, is carried out in Hørsholm (Denmark, lat. 55.4°N), under overcast skies and a north orientation. The methodology involves subjective ratings using a questionnaire and seven grade bipolar scales. The results of the statistical analysis (ANOVA) show that despite significant amplitude in daylight transmittance (50%—79%), the glazing type did not have any statistically significant effect on the perception of the sharpness of shadows in the room. It is also found that higher transmittance glazing (77%—79%) resulted in views that are more glaring compared with the views obtained with the other glazing types. In terms of light level, the reference glazing (which contained an iron-free pane) results in statistically significant differences in the ratings (brighter room) compared with the ratings from all glazing types, including glazing types of similar transmittance. Finally, it is found that higher transmittance glazing types result in more positive ratings for factors, such as naturalness, beauty, and pleasantness and sharpness.

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References

Laouadi A. , Parekh A. Lighting characteristics of complex fenestration systems. Proc. of IBPSA-Canada Esim Conference, Toronto, Ont., May 3—4 2006: 1—7.

Chain C. , Dumortier D. , Fontoynont M. Integration of the spectral and directional component in sky luminance modelling . Proceedings of the 24th session of the CIE, Warsaw, June 24—30. Vienna: CIE, 1999: 248—52.

Cooper JR , Wilshire TJ , Hardy AC Attitudes towards the use of heat rejecting/low light transmission glasses in office buildings. Proc. of the CIE TC-42 Daylight Symposium, Architectural Design Proc, Istanbul, 1973.

Bülow-Hübe H. Subjective reactions to daylight in rooms: effect of using low-emittance coatings on windows. Lighting Res. Technol. 1995; 2: 37—44.

Cuttle K. Subjective assessments of the appearance of special performance glazing in offices. Lighting Res. Technol. 1979; 11: 140—9.

Boyce PR , Eklund N. , Mangum S. , Saalfield C. , Tang L. Minimum acceptable transmittance of glazing. Lighting Res. Technol. 1995; 27: 145—52.

Boyce PR , Gutkowski JM , Beckstead JW , Rea M. Brightness-enhancing glazing. Report from MSR Scientific to Public Works Canada , Ottawa: Public Works Canada, March 1991.

Boyce PR , Beckstead JW , Gutkowski JM , Fan J. , Strobel RW Brightness- enhancing glazing: perception, performance and energy. Report from MSR Scientific to Public Works Canada, Ottawa: Public Works Canada, March 1992.

Aston SM , Bellchambers HE Illumination, colour rendering, and visual clarity. Lighting Res. and Technol. 1969; 1: 259—61.

10.

Boyce PR Investigations of the subjective balance between illuminance and lamp colour properties. Lighting Res. Technol. 1977; 9: 11—24.

11.

Kanaya S. , Hashimoto K. , Kichize E. Subjective balance between general colour render index, colour temperature, and illuminance of interior lighting. Publication CIE 1980; 50: 274—8.

12.

Hedge A. , Woodson H.

Effects of light source, illuminance and hue on visual contrast. Family Cons. Sciences

Res. J. 1999; 28: 217—38.

13.

Fotios SA , Levermore GJ Visual perception under tungsten lamps with enhanced blue spectrum. Lighting Res. Technol. 1995; 27: 173—9.

14.

Fotios SA , Levermore GJ The perception of electric light sources of different colour properties. Lighting Res. Technol. 1997; 29: 161—71.

15.

Knez I. A Model of Artificial Biotope and Organism: Luminous Environment and Gender; Effects Upon Mood and Cognition. Report SB:59. Gävle (Sweden): National Swedish Institute for Building Research, 1993.

16.

Knez I. Effects of indoor lighting on mood and cognition. J. Environ. Psychol. 1995; 15: 39—51.

17.

Berman SM Energy efficiency consequences of scotopic sensitivity. J. Illuminating Eng. Soc. 1992; 21: 3—14.

18.

Baron RM , Rea MS , Daniels SG Effect of indoor lighting (illumination and spectral distribution) on the performance of cognitive tasks and interpersonal behaviours: the potential mediating role of positive affect. Motivation and Emotion 1992; 16: 1—33.

19.

Fotios SA Experimental conditions to examine the relationship between lamp colour properties and apparent brightness. Lighting Res. Technol. 2002; 34: 29—38.

20.

Veitch JA , Tiller DK , Pasini I. , Arsenault CD , Jaekel RR , Svec JM The effects of fluorescent lighting filters on skin appearance and visual performance. J. Illuminating Eng. Soc. 2002 ; 37: 40—60.

21.

Knez I. , Enmarker I. Effects of office lighting on mood and cognitive performance and a gender effect in work-related judgment. Environment and Behaviour 1998; 30: 553—67.

22.

Cockram AH , Collins JB , Langdon FJ A study of user preferences for fluorescent lamp colours for daytime and night-time lighting. Lighting Res. Technol. 1970; 2: 249—56.

23.

Cowdroy R. A study of the scalar effect in the use of models for the assessment of glare, M. Blg. Sc. Thesis of the Macquarie University, Sydney, Australia, 1972.

24.

Lau J. Use of scale models for appraising lighting quality. Lighting Res. Technol. 1972; 4: 254—62.

25.

Astm. Standard practice for visual appraisal of colours and colour differences of diffusely-illuminated opaque materials. Standard D1729-96. West Conshohocken, PA (USA): American Society for Testing and Materials , 1996.

26.

Hesselgren S. The language of architecture. Lund, Sweden, Studentlitteratur 1969.

27.

Keppel G. Design and analysis: a researcher's handbook 2nd edn, Englewood Cliffs (NJ), Prentice-Hall, 1982.

28.

Crowder MJ , Hand DJ Analysis of repeated measures. Monographs on Statistics and Applied Probability . New York, Chapman and Hall 1990 (41).

29.

Veitch JA Principles of healthy lighting: a role for daylight: 5th EPRI Lighting Research Office Symposium: Light and Human Health, Orlando (FL), November 3—5. 2002.