A very rough go at measuring the actual heat loss performance of the bubble wrap

A research/information page referred to by: VIDEO: bubble wrap window insulation

Someone did their best to measure the effect of taping bubble wrap to a window to reduce heat loss. He had a room with two side-by-side windows, left one window alone and put bubble wrap on the other.

Results were:

Temp of room 67F (room temperature)
Temp of bubblewrap 60.5F (inside surface of bubble wrap)
Temp of glass 55.3F (inside surface of glass)

The last two are temperatures at each window. It shows quite a bit LESS heat loss on the bubblewrap window versus untreated window.

For more on this see: Do window insulation films reduce heat loss in winter?

Article Reference: 

http://www.builditsolar.com/Projects/Conservation/bubblewrapperformance.htm