Over the years, I've seen lots of posts on the benefits/drawbacks of dual pane windows when compared to single pane. Quite often, window weight is addressed as part of these discussions. I've seen posts that say you'll add several hundred pounds. So I was curious how much weight it would have added if my travel trailer had been equipped with dual pane windows.
Can someone please double check my calculations and assumptions to see if this sounds correct.
Model: 2017 GDRV Reflection 297RSTS Travel Trailer.
Window sizes:
20" x 22" (3 each) = 1,320 square inches
13" x 34" (1 each) = 442 square inches
26" x 34" (2 each) = 1,768 square inches
27" x 22" (2 each) = 1,188 square inches
34" x 45" (2 each) = 3,060 square inches
20" x 27" (1 each) = 540 square inches
Total 8,318 square inches
8,318 sq in/144 sq in = 57.76 square feet
1/8" Tempered safety glass = 1.62 pounds per sq ft. (Note: glass thickness was measured with a caliper)
57.76 sq ft x 1.62 pounds = 93.6 pounds.
So I'd anticipate that my trailer would have gained 93.6# if I'd gone with dual pane windows. Plus, there may be a little added weight for larger mounting channels and hardware.
Does this sound about right? If so, it might be a good baseline for trying to calculate how much added weight DP windows may add. A larger fifth wheel would probably add a little more weight if it had more glass. Maybe a good round number would be 100 to 125 pounds of extra weight for dual pane windows?
(Note: Please keep this thread focused on window weight and not other attributes of various window types).
Jim
Can someone please double check my calculations and assumptions to see if this sounds correct.
Model: 2017 GDRV Reflection 297RSTS Travel Trailer.
Window sizes:
20" x 22" (3 each) = 1,320 square inches
13" x 34" (1 each) = 442 square inches
26" x 34" (2 each) = 1,768 square inches
27" x 22" (2 each) = 1,188 square inches
34" x 45" (2 each) = 3,060 square inches
20" x 27" (1 each) = 540 square inches
Total 8,318 square inches
8,318 sq in/144 sq in = 57.76 square feet
1/8" Tempered safety glass = 1.62 pounds per sq ft. (Note: glass thickness was measured with a caliper)
57.76 sq ft x 1.62 pounds = 93.6 pounds.
So I'd anticipate that my trailer would have gained 93.6# if I'd gone with dual pane windows. Plus, there may be a little added weight for larger mounting channels and hardware.
Does this sound about right? If so, it might be a good baseline for trying to calculate how much added weight DP windows may add. A larger fifth wheel would probably add a little more weight if it had more glass. Maybe a good round number would be 100 to 125 pounds of extra weight for dual pane windows?
(Note: Please keep this thread focused on window weight and not other attributes of various window types).
Jim
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