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Bob Villa’s American Home, Top
10 Home Improvement Scams, fall 1997,
“The hot item these days is
thermo plane windows. Invariably, the low priced versions are unsuitable for
your home.”
Nation’s Window’s Windows 101,
1999,
“PVC (vinyl) expands and contracts and can warp due to heat.”
Window Renewal Magazine, April
1999,
“Vinyl windows have negative features. They are susceptible to temperature
fluctuations, expanding and contracting with changes in heat and cold. This
causes wear in two ways. First, the joints, even if welded, are subject to
stress. Second, the seals in glass are out under pressure and can eventually
lead to seal failure.”
Fenestration Magazine, Vol. 6,
No. 5,
“UV or IR (infrared) wavelength of sunlight Affects PVC (vinyl). UV affects the
impact strength and color retention of the window.
The more critical factor is
that heat build up from IR can cause distortion of PVC framing.”
Fenestration Magazine,
May/June 1993,
“What happens to PVC (vinyl) in warmer regions of the US? Will
heat turn the framing into soft, melted material? Will the windows change color
from white to yellow or brown to beige? If it’s hit with an object, will a
piece break off? Rigid PVC is brittle and discolors under UV light. Other
concerns are wind-loads.”
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