Can I Use Exterior Paint On The Inside Walls?
Here’s Everything DNVR North Residents Need to Know About Using Outdoor Paint On The Inside.
Table of Contents:
- VOCs: A Health Risk Indoors
- Paint Compatibility: Why It Matters
- Spread Rate: Coverage Differences
- Drying Time: What to Expect
- Exceptions for Using Exterior Paint Indoors
- Why Interior Paint Shouldn’t Be Used Outside
- Recommended Paints for Interior and Exterior Projects
When it comes to home painting projects, many DNVR North homeowners wonder: “Can I use exterior paint inside?” The simple answer: It’s not recommended. Let’s explore why it’s best to avoid exterior paint indoors.
VOCs: A Health Risk Indoors
One major reason is VOCs (volatile organic compounds). Exterior paint contains higher VOC levels, releasing harmful gases that compromise indoor air quality. This is especially important in sealed homes during Denver’s winters.
Tip for Denver North Residents: Opt for low-VOC interior paint to keep your indoor air clean, especially during colder months when ventilation is limited.
Paint Compatibility: Why Interior and Exterior Paint Differ
Exterior paints are formulated to withstand outdoor conditions—sun, rain, and fluctuating temperatures—while being flexible enough to expand and contract. Indoors, however, this flexibility makes the paint less durable. Interior paints are designed to handle scuffing and daily wear with a more rigid finish.
Spread Rate: Coverage Differences
Interior paints offer better coverage:
- Exterior paint: Covers about 300 sq. ft. per gallon.
- Interior paint: Covers roughly 375 sq. ft. per gallon.
You’ll need more exterior paint to cover the same area indoors, increasing both cost and effort.
Drying Time: What to Expect
Exterior paint takes longer to dry. While interior paints are ready for recoat in 1-2 hours, exterior paints may take up to 4 hours between coats, making indoor use less efficient, especially in poorly ventilated spaces.
Exceptions: When You Can Use Exterior Paint Indoors
Exterior paint can sometimes be used in spaces like:
- Garages
- Sheds
- Workshops
However, even in these cases, interior paint is generally the better choice.
Why Interior Paint Shouldn’t Be Used Outside
Interior paints aren’t designed to withstand outdoor elements. They’ll crack, fade, and lack UV resistance, making them unsuitable for exterior use. Exterior paint is formulated to handle Denver’s climate, including the harsh UV exposure and varying temperatures.
Recommended Paints for Your Home
For interior spaces, use 100% water-based acrylic-latex paint. Consider the following finishes based on the room:
- Satin, eggshell, or semi-gloss: Great for kitchens and bathrooms due to durability and easy cleaning.
- Flat or matte: Ideal for low-traffic areas like bedrooms or living rooms.
For exteriors, use 100% water-based acrylic-latex paint on siding and trim, while opting for oil-based enamel for doors and metal surfaces.
Need Expert Advice? Contact Daeco Painting Today!
Not sure which paint is right for your project? The experts at Daeco Painting Company are here to help DNVR North homeowners make the best choices. Contact us today for a free consultation!
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