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  2. Cellulose insulation - Wikipedia

    en.wikipedia.org/wiki/Cellulose_insulation

    Many types of cellulosic materials have been used, including newspaper, cardboard, cotton, straw, sawdust, hemp and corncob. Modern cellulose insulation, made with recycled newspaper using grinding and dust-removing machines and adding a fire retardant, began in the 1950s and came into general use in the United States in the 1970s.

  3. 5 Things In Your Attic You Should Toss Immediately ... - AOL

    www.aol.com/5-things-attic-toss-immediately...

    Doing the job of clearing out the attic should be thought of as a start-to-finish project, even if that means going through one box every week rather than 10 boxes in a day but with a major mess ...

  4. List of insulation materials - Wikipedia

    en.wikipedia.org/wiki/List_of_insulation_materials

    This is a list of insulation materials used around the world. Typical R-values are given for various materials and structures as approximations based on the average of available figures and are sorted by lowest value. R-value at 1 m gives R-values normalised to a 1 metre (3 ft 3 in) thickness and sorts by median value of the range.

  5. 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 ...

  6. Sound attenuator - Wikipedia

    en.wikipedia.org/wiki/Sound_attenuator

    An inner perforated layer of light gauge sheet metal (baffle) The baffle is then filled with sound-absorptive insulation In high velocity systems, or when there is a concern for particulate matter in the air stream, a bagged or mylar-faced insulation is used. Packless sound attenuators do not include sound-absorptive insulation.

  7. Insulation - Wikipedia

    en.wikipedia.org/wiki/Insulation

    Thermal insulation, use of materials to reduce rates of heat transfer List of insulation materials; Building insulation, thermal insulation added to buildings for comfort and energy efficiency Insulated siding, home siding that includes rigid foam insulation; Insulated glazing, a thermally insulating window construction

  8. Baffle (heat transfer) - Wikipedia

    en.wikipedia.org/wiki/Baffle_(heat_transfer)

    In this case the baffle helps increase the efficiency of the stove as more heat leaves the gas before it exits. The baffles prevent the rotational flow without affecting radial or longitudinal flow. The tank is provided with baffles which prevent swirling and vortex formation. Except in very large tanks, four(4) baffles are placed.

  9. Kraft paper - Wikipedia

    en.wikipedia.org/wiki/Kraft_paper

    A roll of kraft paper. Kraft paper or kraft is paper or paperboard (cardboard) produced from chemical pulp produced in the kraft process.. Sack kraft paper (or just sack paper) is a porous kraft paper with high elasticity and high tear resistance, designed for packaging products with high demands for strength and durability.

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