Insulation is critical to the cooling and heating efficiency of your
home. Many materials have used for insulation, from newspaper and
other cellulose-materials to fiberglass and mineral wool. Many newer
insulation types provide a vapor barrier if installed properly. Your
home inspection will identify if insulation is missing, identify the
insulation type & material used in the crawlspace and attic, as well
as the condition of the insulation in these areas & on the HVAC
ducts.
Commonly found insulation defects:
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Improperly installed insulation on a new home
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Insulation missing (not installed) on an inspection of a new
construction home
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Damaged and loose insulation on HVAC ducts in the crawlspace