Do Vinyl Windows Warp in the Florida Sun?
What Heat Does To Vinyl Window Frames Vinyl windows do not usually "melt" or suddenly fail just because a house sits in strong sun, but heat can absolutely change how they behave. A good window should move a little with temperature swings and still function normally. A poor one may bind, rattle, or take on a noticeable twist after repeated hot afternoons. Vinyl is popular because it resists rot and does not need painting, but it still has limits. Aluminum is stiffe