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2. Building insulation material - Wikipedia

   en.wikipedia.org/wiki/Building_insulation_material

   Cellulose insulation is environmentally preferable (80% recycled newspaper) and safe. It has a high recycled content and less risk to the installer than fiberglass (loose fill or batts). [27] 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.

3. Cellulose insulation - Wikipedia

   en.wikipedia.org/wiki/Cellulose_insulation

   The cellulose insulation lost 26.4% less heat energy over time compared to the fiberglass insulation. It also was shown to tighten the structure more than 30%. [ 8 ] Subsequent real world surveys have cellulose performing 20–30% better at reducing energy used for heating than fiberglass.

4. Building insulation - Wikipedia

   en.wikipedia.org/wiki/Building_insulation

   In a narrow sense, insulation can just refer to the insulation materials employed to slow heat loss, such as: cellulose, glass wool, rock wool, polystyrene, polyurethane foam, vermiculite, perlite, wood fiber, plant fiber (cannabis, flax, cotton, cork, etc.), recycled cotton denim, straw, animal fiber (sheep's wool), cement, and earth or soil ...

5. List of insulation materials - Wikipedia

   en.wikipedia.org/wiki/List_of_insulation_materials

   This is a list of insulation materials used around the world. ... High-density fiberglass batts 2.54: 1 0.63–0.88: ... Cellulose loose-fill [14] 2.54: 1

6. Thermal insulation - Wikipedia

   en.wikipedia.org/wiki/Thermal_insulation

   Thermal insulation is the reduction of heat transfer (i.e., the transfer of thermal energy between objects of differing temperature) between objects in thermal contact or in range of radiative influence. Thermal insulation can be achieved with specially engineered methods or processes, as well as with suitable object shapes and materials.

7. Housewrap - Wikipedia

   en.wikipedia.org/wiki/Housewrap

   If moisture from either direction is allowed to build up within stud or cavity walls, mold and rot can set in and fiberglass or cellulose insulation will lose its R-value because of the heat-conducting moisture. House wrap may also serve as an air barrier if it is sealed carefully at seams. [1]