Sun Screens vs. Window Film
RACHAEL'S WINDOW TREATMENT EXPERIMENTBoth bedrooms are similar in size, west facing, with the same window arrangements. On one window we installed an exterior sun screen, on the other we installed interior window film.
I turned off fans and lights in both bedrooms and placed a drinking glass in the light shining on the floor to measure both the temperature of the windows themselves and objects in the room. I measured the same panel of glass in each experiment and I measured identical panels in each room.
August 18, 2003 - afternoon high 107 degrees
| TIME |
PLACE |
ITEM |
TEMPERATURE |
| 2:40pm |
Bedroom #1 |
Window Temperature Glass Temperature |
93 83 |
| |
Bedroom #2 | Window Temperature Glass Temperature |
102 83 |
| 4:00pm |
Bedroom #1 |
Window Temperature Glass Temperature |
98 85 |
| |
Bedroom #2 | Window Temperature Glass Temperature |
113 85 |
| 4:50pm |
Bedroom #1 |
Window Temperature Glass Temperature |
99 85 |
| |
Bedroom #2 | Window Temperature Glass Temperature |
108 84 |
Rachael's two cents: Window in bedroom #2 was substantially hotter to touch than but both treatments work well and offer relief from the sun. I love the way the light looks and feels with the window film. It is a softer, more diffused light. I like the privacy of the screens and the fact that they cut more heat from entering the home.
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