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  2. Building insulation material - Wikipedia

    en.wikipedia.org/wiki/Building_insulation_material

    Cotton insulation costs about 10-20% more than fiberglass insulation. [25] ... Loose fill insulation fills the wall cavity better than batts. Wet-spray applications ...

  3. Building insulation - Wikipedia

    en.wikipedia.org/wiki/Building_insulation

    If the renovation is of a smaller nature, the renovation directive applies. 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 ...

  4. Cavity wall - Wikipedia

    en.wikipedia.org/wiki/Cavity_wall

    Cavity wall insulation is used to reduce heat loss through a cavity wall by filling a portion of the air space with material that inhibits heat transfer.

  5. External wall insulation - Wikipedia

    en.wikipedia.org/wiki/External_wall_insulation

    Types of External cromatic wall insulation systems (EWI Systems pictured above) An external wall insulation system (or EWIS) is a thermally insulated, protective, and decorative exterior cladding procedure involving the use of expanded polystyrene, mineral wool, polyurethane foam or phenolic foam, topped off with a reinforced cement based, mineral or synthetic finish and plaster.

  6. Energy efficiency in British housing - Wikipedia

    en.wikipedia.org/wiki/Energy_efficiency_in...

    The 2006 Review of the Sustainability of Existing Buildings revealed that 6.1 million homes lacked an adequate thickness of loft insulation, 8.5 million homes had uninsulated cavity walls, and that there is a potential to insulate 7.5 million homes that have solid external walls. These three measures alone have the potential to save 8.5 million ...

  7. Renewable heat - Wikipedia

    en.wikipedia.org/wiki/Renewable_heat

    Thicknesses of internal or external insulation typically range between 50 and 100 mm. Cavity wall insulation: A building with cavity walls can benefit from insulation pumped into the cavity. This form of insulation is very cost effective [clarification needed] [citation needed]. Programmable thermostats allow heating and cooling of a room to be ...

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