"Insulation" is one of those terms that everybody uses but few understand. So here's the absolute basics on the topic to help you make an informed decision:
- You know how a cool breeze can make you feel better even on the hottest day? Or how a hot desert wind can make you feel like you're melting? The common factor in both experiences is moving air. The freer air is to move in and out of your home, the harder it will be to maintain a constant comfortable temperature inside.
- Insulation counteracts this effect by trapping air in a closed space. That is how the bulk insulation in your walls works. It's also the principle behind modern double pane windows. The space in between panes contains either good old-fashioned oxygen or a special gas that's pumped into the gap. This creates a dead airspace that inhibits the flow of cold or warmth in and out of your home.
- Studies show that older windows can force your furnace or air conditioner to work up to 25% harder to keep the interior of your home comfortable. You don't have to be a math whiz to see how that can make your utility bills skyrocket while causing premature failure of your climate control system.
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