Updated April 2026
Summer in Southern California means more time outdoors, longer days, and a lot more sun exposure. But here’s something most people don’t think about: you’re also getting significant UV exposure inside your home.
The same windows that give you ocean views and natural light are letting in UV rays that damage your skin, fade your furniture, and heat up your living spaces. Here’s what the research says about UV exposure, and what you can do about it.
The Numbers on UV Exposure and Skin Cancer
The statistics are hard to ignore:
- One in five Americans will develop skin cancer in their lifetime.
- A person’s risk for melanoma doubles after just five sunburns.
- More people develop skin cancer from UV exposure than develop lung cancer from smoking.
- 90 percent of visible skin aging is caused by sun exposure.
UV radiation is a proven human carcinogen. It doesn’t matter if you’re on the beach or sitting in your living room… if sunlight is hitting your skin, UV is doing damage.
What About UV Exposure Indoors?
Most people assume they’re protected once they step inside. That’s not entirely true.
Standard window glass blocks UVB rays (the ones that cause sunburn), but it lets through most UVA rays. UVA penetrates deeper into the skin and is responsible for premature aging and long-term skin damage. It also fades hardwood floors, furniture, artwork, and fabrics.
If you spend time near windows at home or in the office, you’re still accumulating UV exposure. Over years, that adds up.
How Window Film Reduces UV Exposure
Quality window film blocks up to 99% of UV rays before they enter your home. That’s the same level of protection you’d get from high-end sunscreen, except it’s working 24/7 without reapplication.
For families with kids, home offices with big windows, or anyone concerned about long-term sun exposure, window film is one of the most effective solutions available. It also reduces heat and glare, which makes your home more comfortable and cuts down on AC costs.
Protecting Your Family This Summer
Here’s a simple checklist for reducing UV exposure:
Apply sunscreen daily – SPF 15 or higher reduces melanoma risk by 50%
- Limit direct sun exposure between 10am and 4pm
- Wear protective clothing and sunglasses outdoors
- Install window film on south and west-facing windows
- Check your windows – older glass offers less UV protection than you think
If you’d like to learn more about how window film can protect your family and your home, we offer free consultations throughout Los Angeles and Orange County. Call us at 310.372.5357 or use the contact form on this page.
