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  2. Building insulation material - Wikipedia

    en.wikipedia.org/wiki/Building_insulation_material

    The use of highly compressed straw bales as insulation, though uncommon, is gaining popularity in experimental building projects for the high R-value and low cost of a thick wall made of straw. "Research by Joe McCabe at the Univ. of Arizona found R-value for both wheat and rice bales was about R-2.4 (RSI-0.42) per inch with the grain, and R-3 ...

  3. Cellulose insulation - Wikipedia

    en.wikipedia.org/wiki/Cellulose_insulation

    Demand for insulation increased following the oil embargo of 1973–74, which caused energy costs for heating to skyrocket across the United States, driving interest in energy conservation. Insulation gained significant national attention in the U.S. as a cheap and available technology to increase the energy efficiency of homes. In 1977 ...

  4. Building insulation - Wikipedia

    en.wikipedia.org/wiki/Building_insulation

    Mineral wool insulation A semi-detached house with one half of the facade in the original state and the other half after insulation with polystyrene Old brick houses in Sosnowiec, Poland, insulated with polystyrene A single-family house in Bielsko-Biała, Poland, during the implementation of thermal insulation A historic building in Kuźnia Raciborska, Poland, during the implementation of ...

  5. Blowing agent - Wikipedia

    en.wikipedia.org/wiki/Blowing_agent

    A blowing agent is a substance which is capable of producing a cellular structure via a foaming process in a variety of materials that undergo hardening or phase transition, such as polymers, plastics, and metals. [1]

  6. Weatherization - Wikipedia

    en.wikipedia.org/wiki/Weatherization

    The American Council for an Energy-Efficient Economy estimates that up to February 2018 over 7 million homes have been weatherized, giving yearly savings of 2.6 TWh of electricity, 7.9 TWh (27 × 10 ^ 12 Btu) of fossil gas and 3.2 million metric tons (3.5 million short tons) of reduced carbon dioxide emissions. [10]

  7. Spray foam - Wikipedia

    en.wikipedia.org/wiki/Spray_foam

    Spray foam insulation or spray polyurethane foam (SPF) is an alternative to traditional building insulation such as fiberglass. A two-component mixture composed of isocyanate and polyol resin comes together at the tip of a gun, and forms an expanding foam that is sprayed onto roof tiles, concrete slabs, into wall cavities, or through holes ...

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