Construction and Insulation
Insulated glass or storm windows used to reduce heat
loss (storm windows and double-pane insulated glass will
reduce heat loss by approximately 50 to 51 percent, while
triple-pane windows will reduce heat loss by
approximately 68 percent).
Storm doors used on all exterior doors (storm doors
will reduce heat loss through exterior doors by
approximately 35 to 40 percent).
Weatherstripping is installed around jambs of all
doors and operable windows (heat losses due to
infiltration can increase heating costs by sizeable
amounts).
Caulking around all door and window frames is in good
condition to reduce infiltration heat loss (caulking
normally dries out with time and needs replacing).
Heating ducts/runs are wrapped with insulation except
where they pass through heated rooms (metal runs in
unheated crawl spaces, basements and attics lose heat to
these cold areas). Note: If possible, the system should
be designed so heat runs do not pass through unheated
areas.
Hot water pipes are wrapped with insulation except
where they pass through heated areas (metal or plastic
pipes in unheated crawl spaces, basements and attics lose
heat to these cold areas Note: If possible, the water
supply system should be designed so pipes do not pass
through unheated areas.
Attic and gable areas are adequately ventilated (see
point above in design features section concerning attic
ventilation requirements).
Sill sealer/filler has been placed around top of
foundation wall below sill plate (to reduce infiltration
into basement area).
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Tips & Techniques: Energy Checklist For Homes
