Can You use Exterior Paint Inside? Here’s Why You Shouldn’t

You technically can use exterior paint inside, but it’s dangerous and not at all recommended due to dangerous volatile organic compounds in the paint.
Written by Matt Terzi
Reviewed by Melanie Reiff
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You can technically use exterior paint inside, but you really shouldn’t. Exterior paints contain high volumes of volatile organic compounds, or VOCs, which can be dangerous to people and pets.
At first thought, it might make sense to use exterior paint indoors, especially in bathrooms and kitchens where exposure to moisture is more common. But the risks are too severe to make this a good idea.
Here’s a guide to the design and function of interior and exterior paints brought to you by the home and car insurance broker app
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Interior vs. exterior paints: What’s the difference?

Simply put, interior paints are designed for indoor problems—they’re usually scratch and scuff resistant and designed to be washable—while exterior paints are designed to withstand the rigors of weather and temperature extremes.
Exterior paints need to hold up through blizzards, torrential rain, high winds, and everything from freezing to scorching temperatures. And they need to last through those conditions for a decade or longer, too.
To pull this off, exterior paints use a variety of volatile organic compounds (VOCs) that evaporate harmlessly into the open outdoor air. These VOCs allow the paint to resist mold and mildew, provide flexibility to expand and contract without cracking, and avoid fading due to exposure to direct sunlight all day long.

What are the risks of using exterior paint indoors?

Outdoors, exterior paint is harmless. But indoors, those VOCs would linger in your home, reducing air quality and posing problems for anyone with allergies or chemical sensitivities. Exterior paints used indoors can be dangerous even with good ventilation.
These additives can pose serious health risks for humans and pets alike, even after the paint is dried. That’s because exterior paint will continue to release unsafe levels of VOCs over time, and in a confined space, that can get risky.

Does homeowner’s insurance cover interior or exterior paint?

In most cases, your homeowner’s insurance isn’t going to pay for repainting a room or the exterior of your home unless it was damaged by one of the perils your policy covers. Insurance won’t cover typical wear, nor will it pay to fix a bad paint job.
If your home is damaged by, say, a storm or a fire, insurance will usually pay to repaint a room or the home’s exterior. It should be noted that floods and earthquakes both require special insurance policies because the damage in both instances can be immensely catastrophic. Contrary to popular belief, you can get flood insurance even if you don’t live in a flood zone.

How to save money on home, car, and renter’s insurance

Homeowner’s insurance may not cover getting your living room painted, but it’s a real life-saver when disaster strikes. A downed tree, a house fire, or an act of crime can be financially devastating.
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FAQs

Likewise, interior paint doesn’t really work outdoors either. Interior paint isn’t designed to be exposed to moisture, direct sunlight, or wild fluctuations in temperature, so it will fade and chip much more quickly when used outdoors.
One gallon of exterior paint should cover an area of roughly 250 to 400 square feet, and usually closer to 300 to 350 square feet. 
Empty and thoroughly clean your trash bin. Wipe down surfaces, including the floor and walls, with a mixture of water and white vinegar. Unclog sink and shower/ bathtub drains. Make sure you close up soaps, toothpaste tubes, and other odor sources in your bathroom.
As a rule, avoid painting your home’s exterior until the weather is consistently nice. Go by nighttime lows rather than daytime temperatures. You’ll want weather that’s consistently 50 degrees or warmer at night before using exterior paint during the day. 75 degrees is more ideal, too. Paint will take a very long time to dry if it’s cooler than that.
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