C4-14 Flashcards
The efficient and effective use of direct, diffuse, or reflected sunlight to provide full or supplemental illumination for building interiors during hours of sunlight.
Daylighting
Excellent color rendition and brilliance. Diminishes the need for artificial light in buildings and thus saves lighting costs up to 80% (in some buildings)
Sunlight
A combination of direct, reflected, and diffuse sunlight.
Daylight
Travels in a straight-line path from the sun. More intense than diffuse and reflected sunlight.
Direct Light
Strikes a surface and reflects off the surface in another direction.
Reflected light
Is light that has been reflected or refracted by clouds, glazing, or other objects.
Diffuse Light
A measure of how easily heat travels through an assembly of materials.
Overall Coefficient Of Heat Transfer
The fraction of solar heat that is transmitted through the glazing and ultimately becomes heat.
Solar Heat Gain Coefficient
Is the percentage of visible light that is transmitted through the glazing.
Visible Transmittance
The ratio between SHGC and VT of a single glazing.
Light - to solar Gain Ration
These glazing materials is long life, high light transmission, hardness, and stiffness.
Glass
This glazing material is much lighter in weight and are resistant to shattering, do they pose less of a safety hazard.
Plastic
This glazing material is combined in a composite to minimize the limitations of each.
Glass and plastic combined
Main functions are to bring daylight and fresh air and introduce a view of the outdoors.
Windows
Is a design term that describes window size, arrangement, and glazing type.
Fenestration
Is a fenestration arrangement in a upper story wall that extends above one roof surface.
Clerestory Window System
An interior courtyard covered with glazing.
Atrium
Limit solar gains in the summer because the steep angle of the summer sun with respect to the glass.
South-facing windows
Exposed to considerable direct sunlight during these times of the day. Windows facing in these direction should only be used when no other method of introducing daylight is possible and where control of direct sunlight and glare is achievable.
East - and west facing windows
_____________ provide good quality daylighting, excessive heat loss and mean radiant temperature in the winter is a concern in cold climates.
North-facing windows
Is a transparent panel located in a roof opening that allows direct and diffuse sunlight into the building.
Skylights
A type of skylight system that is raised, typically triangular shaped, extension of a roof and that has at least one glazed surface.
Roof monitor
A passive (non-mechanical) architectural element or mechanism that allows sunlight to enter deep into a building.
Reflective Lights Shelves
Most commercially available light pipes consist of an exterior, roof-mounted transparent dome, a reflecting metal pipe and a diffuser for installation at the ceiling level of the space.
Light Pipes
