Varnacular UK architecture suggests high windows (CIBSE, 1999) - High windows are most efficient at letting in daylight, particularly into the deeper part of the plan, and the aperture is less obstructed by other buildings, trees and the ground. The more sky that can be seen, the better the daylight, and high windows are best for this. - The benefits of high level glazing need balancing against the higher sky glare. If glare is a problem, however, this may be alleviated with internal or external shades, or light shelves. Compared with windows in normal positions, high level windows can let in more light, or they can be made smaller, reducing energy costs.
- Orientation affects the amount of daylight entering in a space. A preferred orientation for a building will often be with the longer axis aligned east-west, with solar shading were needed (south or north, according to the latitude of the country).
Window area not only affects the amount of daylight but also influences heat gain and heat loss. The daylight and thermal conditions are often in conflict with one another: that is, the greater the window area the greater the amount of daylight, but also the greater the heat loss and heat gain unless other elements are introduced to counter these effects. (CIBSE, 1999.p.11)
Lighting controls
REFERENCES
[1] The society of light and lighting, 2009. The SLL Lighting Handbook.[online] Available at: http://www.oneeffect.com/public/Lighting-Standards/sll%20handbook%20INTERNATIONAL.pdf [Accessed: 1 March 2014]
[2] CIBSE, 1999. Daylight and window design - Lighting Guide LG10:1999. [pdf]
IMAGES
[1] The society of light and lighting, 2009. The SLL Lighting Handbook.[graph] Available at: http://www.oneeffect.com/public/Lighting-Standards/sll%20handbook%20INTERNATIONAL.pdf. p. 56 [Accessed: 1 March 2014]
[2] CIBSE, 1999. Daylight and window design - Lighting Guide LG10:1999. [image] p.12
[3] CIBSE, 1999. Daylight and window design - Lighting Guide LG10:1999. [table] p.32[4] CIBSE, 1999. Daylight and window design - Lighting Guide LG10:1999. [table] p.62
[1] The society of light and lighting, 2009. The SLL Lighting Handbook.[online] Available at: http://www.oneeffect.com/public/Lighting-Standards/sll%20handbook%20INTERNATIONAL.pdf [Accessed: 1 March 2014]
[2] CIBSE, 1999. Daylight and window design - Lighting Guide LG10:1999. [pdf]
IMAGES
[1] The society of light and lighting, 2009. The SLL Lighting Handbook.[graph] Available at: http://www.oneeffect.com/public/Lighting-Standards/sll%20handbook%20INTERNATIONAL.pdf. p. 56 [Accessed: 1 March 2014]
[2] CIBSE, 1999. Daylight and window design - Lighting Guide LG10:1999. [image] p.12
[3] CIBSE, 1999. Daylight and window design - Lighting Guide LG10:1999. [table] p.32[4] CIBSE, 1999. Daylight and window design - Lighting Guide LG10:1999. [table] p.62