I don't think it would accomplish much. Caulking the gaps will work
Insulation comes from having air between the windows that doesn't
exchange with either the indoors or outdoors. The caulk will do that.
Some additional insulation comes from keeping the air that _is_
captured between the panes from circulating and carrying heat from one
piece of glass to the other, and bubble wrap would slow that down a
little, but I'm guessing it wouldn't do it very much.
Perhaps, but bubble wrap has probably not been tested for heat and fire
resistance. I would be concerned to create a fire and smoke hazard right
at my door...
"Someone" makes some "bublewrap" that is also a raidaton shied in that it
has a layer or two of reflector maerial. I wanted to use it to cover some
exposed HVAC ducts and the manufacturer's folks said it was OK.
How would bubble wrap work for insulation between a window and a storm
window or between a window and a screen? It would still allow light to
get through and it's not too expensive.
layers of plastic containing trapped air pockets (which is what bubble wrap
is) does act as effective insulation. It also lets sunlight through and thus
allows your house to absorb solar energy for additional heat. You would
probably be better off using several sheets of the small bubble wrap on a
window, rather than one big sheet with the big bubbles. Don't listen to the
bozos around here trying to criticize you - energy conservation doesn't make
you trailer trash, and being cheap is not evil.
"Civilisation will not attain to its perfection until the last stone
from the last church falls on the last priest."
-- Emile Zola
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