If YETI can make a cup that keeps water cold or hot for hours and a cooler that holds ice for hours, then why aren’t we building houses with that same material?
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A YETI cooler’s walls are a vacuum which prevents heat transfer when the lid is closed. But open the lid a bunch on a cooler and it won’t work very well.
This is the major reason that a house does not perform as well as a YETI cooler. Most houses are not carefully built to limit the amount of air that leaks through small cracks and penetrations on its walls, floors, and ceilings. Essentially, houses often perform like a cooler with the lid open.
If a home’s walls were built like a YETI cooler’s and vacuum sealers there would likely still be places for air to sneak through the walls. This could occur, for example where the plumbing or electricity or exhaust fans pass through the walls, floors, and ceilings.
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