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  2. Building insulation - Wikipedia

    en.wikipedia.org/wiki/Building_insulation

    9.5 4 13 13+3.8 13+7.5 ... bills which often reflects the buildings attic as being poorly insulated. ... 6.3 3.8 * These minimum insulation levels are higher if the ...

  3. Building insulation material - Wikipedia

    en.wikipedia.org/wiki/Building_insulation_material

    Cotton insulation is increasing in popularity as an environmentally preferable option for insulation. It has an R-value of around 3.7 (RSI-0.65), equivalent to the median value for fiberglass batts. The cotton is primarily recycled industrial scrap, providing a sustainability benefit.

  4. List of insulation materials - Wikipedia

    en.wikipedia.org/wiki/List_of_insulation_materials

    6.8: 55 [3] Foil-faced polyisocyanurate rigid panel (pentane-expanded) aged 5–10 years 2.54: 1 0.97: 5.5: 38 Polyisocyanurate spray foam 2.54: 1 0.76–1.46: 4.38.3: 30–57 Closed-cell polyurethane spray foam 2.54: 1 0.97–1.14: 5.5–6.5: 38–45 Phenolic spray foam 2.54: 1 0.85–1.23: 4.8–7: 33–48 Thinsulate clothing insulation [4 ...

  5. Glass wool - Wikipedia

    en.wikipedia.org/wiki/Glass_wool

    Glass wool batt insulation. Glass wool is an insulating material made from glass fiber arranged using a binder into a texture similar to wool.The process traps many small pockets of air between the glass, and these small air pockets result in high thermal insulation properties.

  6. R-value (insulation) - Wikipedia

    en.wikipedia.org/wiki/R-value_(insulation)

    Installed faced fiberglass batt insulation with its R-value visible (R-21) [1]. The R-value is a measure of how well a two-dimensional barrier, such as a layer of insulation, a window or a complete wall or ceiling, resists the conductive [2] flow of heat, in the context of construction. [3]

  7. Rigid panel - Wikipedia

    en.wikipedia.org/wiki/Rigid_panel

    A multi-family residential building under construction with rigid panel exterior insulating sheathing. Rigid panel insulation, also referred to as continuous insulation, [1] can be made from foam plastics such as polyurethane (PUR), polyisocyanurate (PIR), and polystyrene, or from fibrous materials such as fiberglass, rock and slag wool.

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