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  2. Heat transfer coefficient - Wikipedia

    en.wikipedia.org/wiki/Heat_transfer_coefficient

    Architects and engineers call the resulting values either the U-Value or the R-Value of a construction assembly like a wall. Each type of value (R or U) are related as the inverse of each other such that R-Value = 1/U-Value and both are more fully understood through the concept of an overall heat transfer coefficient described in lower section ...

  3. Thermal transmittance - Wikipedia

    en.wikipedia.org/wiki/Thermal_transmittance

    Although the concept of U-value (or U-factor) is universal, U-values can be expressed in different units. In most countries, U-value is expressed in SI units, as watts per square metre-kelvin: W/(m 2 ⋅K) In the United States, U-value is expressed as British thermal units (Btu) per hour-square feet-degrees Fahrenheit: Btu/(h⋅ft 2 ⋅°F)

  4. Vacuum insulated panel - Wikipedia

    en.wikipedia.org/wiki/Vacuum_insulated_panel

    A vacuum insulated panel (VIP) is a form of thermal insulation consisting of a gas-tight enclosure surrounding a rigid core, from which the air has been evacuated. It is used in building construction, refrigeration units, and insulated shipping containers to provide better insulation performance than conventional insulation materials. [1] [2]

  5. Building insulation - Wikipedia

    en.wikipedia.org/wiki/Building_insulation

    Examples of renovation are post-insulation of a cavity wall and post-insulation of a sloping roof against the roof boarding or under the tiles. Note that every renovation must meet the minimum Rc value of 1.3 W/(m 2 ⋅K). If the current insulation has a higher insulation value (the legally obtained level), then this value counts as a lower ...

  6. External wall insulation - Wikipedia

    en.wikipedia.org/wiki/External_wall_insulation

    External wall insulation systems generally comprise firstly an insulation layer (an element which helps to achieve the requisite thermal performance); and secondly,a protected weatherproof finish (usually a render, although brick slips, [3] tiles, and decorative boards can also be used). Insulating render can also be an advantage in certain ...

  7. Kingspan Group - Wikipedia

    en.wikipedia.org/wiki/Kingspan_Group

    Kingspan Group plc is a building materials company based in Ireland, trading in over 80 countries with more than 210 factories employing over 22,000 people.The company operates with six divisions; Insulated Panels, Insulation, Light & Air, Water & Energy, and, Data & Flooring, Roof & Waterproofing.

  8. Dynamic insulation - Wikipedia

    en.wikipedia.org/wiki/Dynamic_insulation

    The insulation in the windward and leeward walls is behaving dynamically in the contra-flux mode with U-values of 0.0008 W/(m 2 K) and 0.1 W/(m 2 K) respectively. Since the building has a square footprint the average U-value for the walls is 0.1252 W/m 2 K. For other wind speeds and directions, the U-values will be different.

  9. Building insulation material - Wikipedia

    en.wikipedia.org/wiki/Building_insulation_material

    R-Value 3.4 – 3.8 (RSI-0.60 – 0.67) per inch (imperial units) Loose fill insulation fills the wall cavity better than batts. Wet-spray applications typically seal even better than dry-spray. Class I fire safety rating; No formaldehyde-based binders; Not made from petrochemicals nor chemicals with a high toxicity

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