Term
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Definition
| A basic measurement of thermal transfer (btus per hour) |
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Term
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Definition
| A numerical measure of resistance to the flow of heat |
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Term
| Thermal Insulation does these 3 things: |
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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.
Reduces convective drafts. Reduces energy consumption of the building (heating & cooling) to a fraction of the cost |
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Term
| The 3 basic forms of insulation: |
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Definition
1. rigid foam and foam-in-place
2. fiberglass blanket and batts
3. blow-in loose fill |
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Term
| _____ insulation has the highest R value per inch of thickness, and is very flammable. |
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Definition
| rigid foam and foam-in-place insulation |
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Term
| ___ insulation is non-combustible. |
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Definition
| fiberglass blanket and batts insulation |
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Term
| _____ insulation is used in attics only, and is a fast/easy installation. |
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Definition
| blow-in loose fill insulation |
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Term
| _____ is the most problematic envelop material. |
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Definition
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Term
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Definition
| High heat loss in winter due to low R values. High heat gain in summer due to direct solar radiation through unshaded glass and poor orientation. |
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Term
| ________ is the process of placing glass or glazing in windows and making a weather tight joint between the glass and its frame. |
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Definition
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Term
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Definition
| is the process of placing glass or glazing in windows and making a weather tight joint between the glass and its frame. AND Glass panels set into grooves designed to receive them, held in place with glazing beads, points, or clips, and sealed in place with various glazing compounds. |
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Term
| The idea of a "folding facade" or “fabricated façade” is to create a double skin that has a dual purpose: |
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Definition
| one explores the depth of the façade as a space that will be locally accessible through volume and plane projections creating an occupiable space; and second to allow for ventilation and airflow in the intermediate cavity. |
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Term
| Hydrophilic self-cleaning system: |
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Definition
| It literally means 'attracting water', and is the opposite of 'hydrophobic' (water-repellent). That makes water droplets spread out, across the surface of the glass. Basically, it means water spreads evenly over the surface of the glass to form a thin film that washes away and dries off quickly without leaving unsightly 'drying spots'. |
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Term
| Hydrophobic self cleaning system: |
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Definition
| coatings that repel water and dirt and prevent water drops from drying on the glass pane and leaving ugly stains. The biggest problem of this type of coating is that most of these coatings do not exhibit enough hydrophobicity for the self-cleaning effect to work. |
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Term
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Definition
| (contact angle with water > 1500) |
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Term
| Currently, there exist two main categories of self-clean coatings: ____ and ___ |
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Definition
| hydrophobic and hydrophilic. |
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Term
| Drawn glass--or Fourcault process-- |
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Definition
| is a sheet pulled directly from a container of molten glass. |
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Term
| ____% of today’s glass is “float glass” because of the finished product has near-perfect parallel surfaces. |
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Definition
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Term
| _____ ______ is dimensionally inaccurate and often created visual distortions. |
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Definition
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Term
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Definition
| Direct solar radiation through glass generally results in the most heat gain |
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Term
| The primary issues affecting the use of glass: 3 things |
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Definition
Orientation of glass
Shading of glass
Type of glass |
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Term
| Types of Glass Curtain Walls: |
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Definition
Stick system
Unitized system
Unit and mullion system
Panel system
Column cover and spandrel system |
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Term
| ___ ____ (curtain wall) is the oldest and most widely used system. |
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Definition
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Term
| The remaining four systems are different from the stick system because ... |
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Definition
| they consist of prefabricated wall units. |
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Term
| Criteria For the Selection of Glass-5 things: |
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Definition
Energy Performance
Structural Adequacy
Temperature related stress / resistance
Fire-resistance [where applicable]
Safety-resistance [where applicable] |
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Term
| COLUMN COVER AND SPANDREL SYSTEM |
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Definition
| Consists of vision-glass assemblies and spandrel units supported by spandrel beams btw exterior columns |
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Term
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Definition
| consists of preassembled homogenous sheet metal panels with glass infills spanning from floor to floor. appearance is more integrated and comprehensive rather than grid pattern. |
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Term
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Definition
| 1 or 2-story high mullions are installed before preassembled wall units are lowered into place behind mullions |
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Term
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Definition
> Consists of preassembled, framed wall units
> Either pre-glazed or glazed after installation
> Shipping bulk
> Assembly has less field labor and very little installation time required |
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Term
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Definition
> Consists of tubular metal mullions& rails assembled piece-by-piece.
> Vision and spandrel units
> Low shipping / handling costs
> Assembly easily adjusted to on-site conditions |
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Term
| These synthetics are particularly effective in allowing for the thermal expansion and contraction of glass: |
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Definition
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Term
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Definition
| is the ratio of solar heat gain through a specific type of glass that is relative to the solar heat gain through a 1/8" (3 mm) ply of clear glass under identical conditions. |
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Term
| As the shading coefficient number ___, heat gain is ___, which means a _____ performing product. |
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Definition
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Term
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Definition
| made by sandwiching a transparent polyvinyl butyric (PVB) interlayer between sheets of glass bonding the three layers together under heat and pressure. |
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Term
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Definition
| glass that is reheated and rapidly cooled, which causes it to break into pea-sized pellets. |
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Term
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Definition
| Glass that increases R-value (insulating value) and prevents condensation from forming on the glass. |
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Term
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Definition
| Glass that has a silver coating that restricts energy flow. |
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Term
| ______ glass behaves somewhat like a mirror reflecting heat and glare, and therefore, its performance is similar to heat –absorbing glass. |
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Definition
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Term
| Heat-Absorbing Glass (actinic glass)is |
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Definition
| tinted to absorb a high degree of solar radiation, and thus, it transmits less solar heat and glare into building. It is usually bronze, gray, or blue-green in color. |
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Term
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Definition
| Glass that remains intact and restricts the expansion of fire. |
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Term
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Definition
| Glass that has an imprint on the surface with silk screened patterns of ceramic based paint. |
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Term
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Definition
Ingress / egress
Visual connection with street
Security |
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Term
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Definition
Non load bearing
Multi level spans
Supported by floor framing
Site fabricated / prefabricated
Climate modification
Higher wind loads |
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Term
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Definition
| is used to hold tempered glass in structural glass walls |
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