Home Insulation And Reduced Heat Loss | Benefits Of Home Insulation PowerPoint PPT Presentation

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Title: Home Insulation And Reduced Heat Loss | Benefits Of Home Insulation


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Home Insulation And Reduced Heat Loss
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About Us
  • An Overview of the Industry The industry of
    insulation materials have seen an evolution over
    a period of time.
  • From being used in the packaging of various
    products with its application being put to use in
    industries as well as households, insulation
    materials have now come to be used in the
    construction purposes and that is where they have
    found their real value.
  • Being able to reflect the heat and the cold that
    the nature has to offer, these sheets have
    managed to maintain a comfortable environment for
    people staying in very warm and equally cold
    areas.

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What is the Insulation?
  • Insulationsilently hidden in your walls, no
    moving parts to fixis a material you probably
    spend precious little time thinking about.
  • Then along comes subzero (or sweltering!)
    weather, a three-digit utility bill or chilly
    drafts, and you start thinking about it a lot!
  • At home, you ponder whether its worth the time
    and expense to add it to your ceilings, walls and
    basement.
  • At the store, you ponder which type, thickness,
    width and density to buy. And when you install
    it, you wonder just how good is good enough.
  • We asked insulation manufacturers and installers
    which questions they field mostand which
    blunders they see most. Following are six things
    they (and we) think you should know.

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Choosing Insulation
  • Insulation products come in two main categories
    bulk and reflective which are sometimes
    combined into a composite material.
  • For the many different products available see
    Insulation types and their applications below.
  • To compare the insulating ability of the
    products available, we need to look at their
    R-value, which measures resistance to heat flow.
  • The higher the R-value, the higher the level of
    insulation. Products with the same R-value have
    the same insulating performance if installed as
    specified.
  • Check the information supplied on the product,
    including the R-value, the price per square meter
    and whether it must be installed professionally
    or can be DIY some types of insulation require
    the use of masks and protective clothing.
  • Ensure that it suits your particular application
    and fits within the space available. Ask if
    performance guarantees or test certificates are
    available.
  • All insulation materials that are sold in
    Australia must meet Australian Standard AS/NZS
    4859, materials for the thermal insulation of
    buildings, even if they are imported.
  • Compare the environmental benefits of different
    products.

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Insulation Types And Their Applications
  • Bulk insulation mainly resists the transfer of
    conducted and convicted heat, relying on pockets
    of trapped air within its structure.
  • Its thermal resistance is essentially the same
    regardless of the direction of heat flow through
    it.
  • Bulk insulation includes materials such as glass
    wool, wool, cellulose fiber, polyester and
    polystyrene.
  • All bulk insulation products come with one
    material R-value for a given thickness.

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  • Reflective insulation mainly resists radiant
    heat flow due to its high reflectivity and low
    emissivity (ability to re-radiate heat).
  • It relies on the presence of an air layer of at
    least 25mm next to the shiny surface.
  • The thermal resistance of reflective insulation
    varies with the direction of heat flow through
    it.
  • Reflective insulation is usually shiny aluminum
    foil laminated onto paper or plastic and is
    available as sheets (sarking), concertina-type
    batts and multi-cell batts.
  • Together these products are known as reflective
    foil laminates, or RFL.
  • Dust settling on the reflective surface greatly
    reduces performance.
  • Face reflective surfaces downwards or keep them
    vertical.
  • The anti-glare surface of single sided foil
    sarking should always face upwards or outwards.

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Where to install insulation
  • Roofs and ceilings work in conjunction when it
    comes to insulation.
  • Install insulation under the roofing material to
    reduce radiant heat gain.
  • Install insulation in the ceiling to reduce heat
    gain and loss. In most cases ceiling insulation
    is installed between the joists (see Insulation
    installation).
  • External walls should be insulated to reduce
    radiant, conducted and convicted heat transfer.
    Wall insulation can be installed
  • within cavities
  • within stud frames
  • on the outside of stud frames
  • on the inside or outside of solid walls.

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Installation Increases The insulations R-value
By Over 20 Percent
  • The most important steps you can take
  • Fill the stud cavity from top to bottom and side
    to side. To avoid guesswork when insulating walls
    built from standard 92-5/8 in. long studs,
    purchase and install precut fiberglass batts that
    are 93 in. long and 15 in. wide. When you have to
    custom-cut batts at wall corners and other
    places, cut the batts 1 in. higher and wider than
    the cavity youre filling.
  • Split your insulation so half goes in front of
    and half goes behind electrical wires.
    Compressing insulation reduces its R-value.
  • Around electrical boxes, notch, rather than
    compress, the batt then tuck the cutout behind
    the box. To help prevent frozen pipes, insulate
    only on the cold side.

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How much insulation is enough?
  • The high-density insulation on the right, with
    more fibers and air spaces, can deliver up to 35
    percent more insulating value than standard
    insulation.
  • The payback period for retrofitting insulation
    varies greatly, but studies show that added
    insulation usually pays for itself in saved
    energy costs within 5 to 10 years.
  • In Minnesota, a typical payback period might be
    five or six years. Payback in more temperate
    areas takes longer, but remember that insulation
    reduces air conditioning costs too.

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Click Here For Buy Insulation Materials Online
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