Term
|
Definition
| a basic measurement of thermal transfer (btus per hour) |
|
|
Term
|
Definition
| a numerical measure of resistance to the flow of heat |
|
|
Term
|
Definition
| keeps a building cooler in the summer and warmer in the winter by slowing down the passage of heat through the exterior surfaces of the building |
|
|
Term
|
Definition
| reduces convective drafts; reduces energy consumption of the building (heating and cooling) to a fraction of the cost |
|
|
Term
| 3 basic forms of insulation |
|
Definition
| 1. rigid foam & foam-in-place; 2. fiberglass blankets & batts; 3. blow-in loose fill |
|
|
Term
| rigid foam & foam-in-place |
|
Definition
| highest R value per inch of thickness; very flammable |
|
|
Term
| fiberglass blankets & batts |
|
Definition
|
|
Term
|
Definition
| usually used in attic spaces only; easy and quick installation |
|
|
Term
| Why is glass generally the most problematic envelop material? |
|
Definition
| high heat loss in winter (low R values), high heat gain in summer (direct solar radiation) through unshaded glass and poor orientation |
|
|
Term
| criteria for selection of glass |
|
Definition
| energy performance, structural adequacy (wind-load, earthquake, snow-load resistance), temperature related stress/resistance, fire resistance, safety resistance |
|
|
Term
|
Definition
| process of placing glass or glazing in windows and making a weather tight joint between the glass and its frame |
|
|
Term
|
Definition
| synthetics that are particularly effective in allowing for the thermal expansion and contraction of glass |
|
|
Term
|
Definition
| often used as alternate material to glass in skylights |
|
|
Term
|
Definition
| ratio of solar heat gain through a specific type of glass that is relative to the solar heat gain through a 1/8" (3mm) ply of clear glass under identical conditions |
|
|
Term
| as this number decreases, heat gain is reduced, which means a better performing product |
|
Definition
|
|
Term
|
Definition
| tempered, heat-strengthened, laminated, fire rated, spandrel, fitted |
|
|
Term
|
Definition
| made by sandwiching a transparent polyvinyl butyric (PVB) interlayer between sheets of glass which are all bonded together under heat and pressure |
|
|
Term
|
Definition
| glass that is reheated and rapidly cooled, which causes it to break into pea-sized pellets |
|
|
Term
|
Definition
| glass that increases R value (insulating value) and prevents condensation from forming on the glass; can be manufactured from almost any type of glass; sealed air space |
|
|
Term
|
Definition
| glass has a silver coating that restricts energy flow; coating is applied on the inside face of double pane insulating glass that restricts thermal energy flow in a specific direction depending on placement |
|
|
Term
|
Definition
| tinted to absorb a high degree of solar radiation, thus transmitting less solar heat and glare into building |
|
|
Term
|
Definition
|
|
Term
|
Definition
| made by placing wire mesh in the middle of glass during manufacturing process; glass remains intact and restricts the expansion of fire |
|
|
Term
|
Definition
| glass that has an imprint on the surface with silk screened patterns of ceramic based paint (which consists of pigmented glass particles called frits) |
|
|
Term
|
Definition
| has an opaque band covering the edge of floors in curtain walls (usually tempered or heat strengthened) |
|
|
Term
|
Definition
| has a silver coating, usually used in interiors |
|
|
Term
|
Definition
| sheet of glass made by floating molten glass on a bed of molten metal (tin) |
|
|
Term
|
Definition
| exterior wall system that is attached to the structural framework of a building and carries no weight other than its own and wind loading that it transfers to the structure |
|
|
Term
|
Definition
| New York; Gordon Bunshaft of Skidmore, Owings, and Merrill (SOM); 1951-52; first example of the curtain wall expressed as an uninterrupted glass membrane |
|
|
Term
|
Definition
| takes into consideration ingress/egress, visual connection with street, security |
|
|
Term
|
Definition
| non-load bearing, multi level spans, supported by floor framing, site fabricated/prefab, climate modification, higher wind loads, image |
|
|
Term
|
Definition
| made up of tempered glass sheets suspended from special clamps, or spider fittings and are stabilized against wind pressure by perp. stiffeners and/or cables |
|
|
Term
|
Definition
| used as structural elements to carry glass gravity and wind loads |
|
|
Term
|
Definition
| Beijing, China; Simone Giostra & Partners and Arup; 2008 Olympics; world's largest color LED display combined with China's first photovoltaic system to be integrated into a glass curtain wall (100% energy sufficient) |
|
|
Term
| idea of a "folding facade" or a "fabricated facade" |
|
Definition
| to create a double skin that has a dual purpose: one explores the depth of the facade as a space that will be locally accessible through volume and plane projections creating occupiable space; second to allow for ventilation and airflow in the intermediate cavity |
|
|
Term
|
Definition
| special glass with integrated solar cells, to convert solar energy into electricity (power for an entire building can be produced within the roof and facade areas |
|
|
Term
| drawn glass (Fourcault process) |
|
Definition
| sheet pulled directly from a container of molten glass; glass seen in older houses that; replaced by float glass |
|
|
Term
|
Definition
| prior to both drawn and float glass; dimensionally inaccurate and often created visual distortions |
|
|
Term
| primary issues affecting the use of glass |
|
Definition
| orientation, shading, and type of glass |
|
|
Term
|
Definition
| two main areas of concern are where glass fits into aluminum framing system and the perimeter of framing systems |
|
|
Term
| types of glass curtain walls |
|
Definition
| stick system, unitized system, unit and mullion system, panel system, and column cover and spandrel system |
|
|
Term
|
Definition
| oldest and most widely used; only one that does not consist of prefab wall units |
|
|
Term
|
Definition
| breathing, patterned, textured, articulated, performative, media, interactive,green, biomimetic, self-cleaning, inflatable-membrane, high performance |
|
|
