Edmonton sits at 53° north latitude — about as close to the Arctic Circle as Hamburg or Liverpool. People assume that means our UV exposure is mild. It isn’t. In summer, Edmonton has 17 hours of daylight in June. The sun sits low in the sky for much of that time, which means it angles through your living room windows for hours, not minutes. The Edmonton UV index hits 7-9 most clear summer days — well into the “high” and “very high” range. Hardwood floors fade. Leather couches dry out. Photographs on the wall lose their colour. The HVAC works overtime trying to compensate for the heat gain. This guide explains how UV damages a Canadian home, what kinds of window coverings actually block UV (versus just looking like they do), and how to choose the right combination for your specific exposure.
What UV Actually Does to Your Home
Three kinds of damage happen at once when sun streams through a window:
Fading. UV radiation breaks down the chemical bonds in dyes and finishes. Dark hardwood floors fade to gray. Coloured fabrics lose saturation. Wood furniture finishes turn yellow then brittle. The damage is cumulative and irreversible — once the colour is gone, no refinishing brings it back fully.
Heat damage. Visible light and infrared radiation heat surfaces directly. A black leather couch in a south-facing window can reach 60°C surface temperature on a July afternoon. Repeated thermal cycling cracks finishes, dries out leather, and warps wood. The room itself becomes unusable in summer without aggressive air conditioning.
Material breakdown. Plastics yellow and become brittle. Adhesives weaken. Window-frame caulking dries out. Even paint on south-facing walls fades over years. UV is the slow-motion enemy of every interior finish. A typical Canadian living room with un-protected south or west exposure shows visible fading within 2-3 years. Within 7-10 years the difference between sun-exposed and shaded areas is dramatic. Most homeowners notice when they move a piece of furniture and see the unfaded floor underneath.
Why “UV-Resistant Glass” Isn’t Enough
Modern double- or triple-pane windows block 50-75% of UV-B radiation (the kind that causes sunburn). They block far less UV-A — the longer-wavelength radiation that causes most fading damage. Standard residential glass blocks only 20-30% of UV-A. The Low-E coatings on modern windows are designed to reduce heat transfer, not to block UV specifically. Some help — most don’t help much. If your floors are fading despite “energy-efficient” windows, this is why. To meaningfully reduce UV damage, you need an additional layer between the sun and your interior: a window covering, a window film, or both.
Solar Roller Shades: The Workhorse Solution
Solar shades are roller shades with an open-weave fabric specifically engineered for UV reduction. The “openness factor” is the percentage of the fabric area that is open weave — lower openness means more UV blocked but less visibility.
Openness factors:- 1% openness: Blocks 99% of UV. Very dim view through the fabric. Best for west-facing rooms with extreme sun.
- 3% openness: Blocks 97% of UV. Slightly clearer view. Good general-purpose choice for south-facing rooms.
- 5% openness: Blocks 95% of UV. Clear view through the fabric. Popular for living rooms where the view matters.
- 10% openness: Blocks 90% of UV. Most see-through option. Use when you want to maintain the view as much as possible.
For Edmonton homes, we typically recommend 3-5% openness on south and west exposures. Anything more open lets too much radiation through; anything tighter dims the room more than most homeowners want during the day. Solar shade fabric also reflects heat, which means lowering the shade during peak sun reduces the temperature in that room by 3-5°C. Over a hot summer, that translates into measurable air conditioning savings.
Window Film: The Invisible Layer
Window film is a thin polymer applied directly to the interior glass. It blocks UV without changing how the window looks from inside or outside. Modern UV-blocking window films can stop 99%+ of UV radiation while still being optically clear. You can keep your view, your natural light, and your blinds fully raised, and still protect everything inside from fading. The downside: cost. Professional film installation runs $8-$15 per square foot. A typical 60×60 inch window costs $300-$550 to film. For a whole-house south-facing wall of windows, the bill adds up quickly. When does film make sense?
- Heritage windows that you can’t easily cover with a roller shade.
- Picture windows where you want to preserve the view.
- Combined with solar shades on extreme exposures, for layered protection.
- Patio doors where you also want to use the door without raising a shade every time.
Films come with a 10-15 year warranty against bubbling, peeling, or discoloration. Reputable installers in Edmonton offer transferable warranties — useful at resale.
Cellular Shades: Thermal Plus UV
Cellular (honeycomb) shades aren’t primarily UV products, but they do block roughly 99% of UV when fully closed. The advantage of cellular over a closed roller shade is the thermal benefit — the trapped air in the honeycomb pockets provides insulation as well as light blocking. For north-facing rooms where heat loss in winter is the main issue, cellular shades reduce that loss by 15-25%. For south-facing rooms in summer, the same shades reduce solar heat gain by 30-60%. So you get UV protection plus year-round energy benefit. The drawback: when cellular shades are closed for UV protection, the room is dark. They’re not see-through like solar shades. For rooms where you want UV protection while still seeing out, solar roller shades are the better choice.
Drapery With UV-Blocking Liners
Most lined drapery includes an interlining that blocks UV — but the amount varies enormously by liner type.
Standard cotton or polyester liner: Blocks 50-70% of UV. Helpful but not a serious UV solution.
Blackout liner: Blocks 99%+ of UV when drapery is closed. Major UV solution for bedrooms or media rooms where you’d close the drapery anyway.
Thermal foam-backed liner: Blocks 95%+ of UV plus reduces heat transfer. Heaviest liner option. Use for severe sun exposure or older windows with poor energy performance. For UV protection through drapery, the only realistic approach is to keep the drapery drawn during peak sun. If you tend to leave drapery open in the daytime (most people do), pair drapery with solar roller shades that handle the UV during the day while drapery handles the look in the evening.
Direction Matters: Where Your Windows Face
The right UV solution depends on which direction the window faces. In Edmonton:
South-facing. Sun streams through these windows for most of the day in winter, and for the early afternoon hours in summer. Solar shades with 3-5% openness are the standard recommendation. Pair with UV film on the glass for premium protection of valuable interiors.
West-facing. The hardest exposure. Late afternoon sun in summer is intense and angled, hitting interiors directly. 1-3% openness solar shades plus UV film make sense here. Some homes also benefit from exterior shades or awnings for the worst rooms.
East-facing. Morning sun, less intense and shorter duration. Standard 5-10% solar shades are usually sufficient. UV film optional unless you have very fade-prone furnishings.
North-facing. Minimal direct sun. UV protection isn’t needed; focus instead on heat loss with cellular shades for energy efficiency. The mistake most homeowners make is treating all windows the same. A whole-home install should match the right product to the right exposure, not put the same shade on every window.
The Fade Test (Try It in Your Own Home)
Want to know how bad your UV problem actually is? Two-week test: Take a piece of bright-coloured construction paper. Cut it in half. Tape one half to the wall in your most sun-exposed window (right against the glass). Put the other half in a drawer for comparison. After 14 days, compare. If the window-mounted half has visibly faded, that’s the rate at which everything else in that room is fading too. The construction paper is just easier to measure. If you see noticeable fading after two weeks, you have a UV problem. The fix isn’t drapery you forget to close — it’s a permanent solution that works while you’re at work and the curtains are open.
The Stuff Most at Risk
Some materials fade faster than others. Prioritize UV protection in rooms with:
Hardwood floors. Especially walnut, cherry, and dark-stained oak. Fading shows up first as a colour shift in the area near the window. Once you see the difference between the sun-exposed and shaded areas, the damage is permanent.
Leather furniture. Dries out and cracks under repeated UV and heat exposure. Black leather fades to gray in 3-5 years on a south-facing wall.
Original art or framed photographs. Even art on archival paper fades over time. Museum-grade UV-filtering glass on framed pieces helps; for unframed art, the room needs to do the protecting.
Antiques and finished wood. Original finishes are more sensitive than modern polyurethane. A $5,000 antique sideboard near a south-facing window will need refinishing within 10 years if it isn’t protected.
Coloured area rugs. The exposed parts fade much faster than the parts under furniture. Rotate rugs every 6 months to even out fading, or protect the room with solar shades.
Insurance and Resale
Two practical points most homeowners don’t think about:
Insurance claims. Most home insurance policies do NOT cover UV-related fading or heat damage. It’s classified as “wear and tear” rather than a covered peril. The repair costs come out of your pocket.
Resale value. Faded floors, cracked leather, and yellowed window frames are common reasons buyers reduce offers on south- and west-facing homes. Investing $2,000-$5,000 in solar shades and UV film before listing often returns 3-5x that on the sale price. If you’re moving into a new build with major south or west exposure, the first thing to do (before furniture even arrives) is install UV protection. Any damage to floors and finishes during the first summer is permanent.
What We Recommend by Room
- Living room (south or west): Solar roller shades 3-5% openness, motorized for ease of use.
- Living room (north or east): Cellular shades for heat retention; UV is a smaller issue.
- Bedrooms: Blackout cellular or roller shades. UV blocking is automatic with blackout fabric.
- Kitchen: Solar shades or roller shades 5% openness. Maintain visibility for cooking and outdoor views.
- Home office: Solar shades 1-3% openness behind the desk to reduce screen glare while protecting equipment.
- Patio doors: See our patio door guide — solar shades or vertical sheers depending on the use case.
- Picture windows with views you want to preserve: UV film on glass plus light solar shades for layered protection.
For a free in-home UV consultation in Edmonton or surrounding areas, our team brings fabric samples, an actual UV meter, and shows you exactly what your interior is being exposed to.
Book your free measure.
Frequently Asked Questions
Does Edmonton really have a UV problem?
Yes. The Edmonton UV index reaches 7-9 most clear summer days, which is “high” to “very high.” Combined with 17-hour daylight in June, the cumulative UV exposure on south and west windows is significant. Edmonton homes show measurable fading within 2-3 years of new construction without UV protection.
Are solar shades better than blackout shades for UV?
For during-the-day UV protection where you want to maintain a view, solar shades are better — they block 90-99% of UV while still being see-through. Blackout shades block UV more completely (99%+) but the room is dark when they’re closed. Use blackout in bedrooms, solar in main living areas.
How much does UV-blocking window film cost?
Professional installation runs $8-$15 per square foot. A typical 60×60 inch window costs $300-$550. Whole-home south-facing installs run $3,000-$8,000 depending on window count and film grade. Films come with 10-15 year warranties.
Can I just close the curtains during the day?
You could, but most homeowners don’t — and even drawn drapery only blocks UV when it’s actually closed. Solar shades and window film provide UV protection while you live normally with the windows open and the room lit. The point is permanent protection that doesn’t require behavior change.
Will UV protection make my room darker?
Solar shades reduce visible light by roughly the same amount as the openness percentage — a 3% solar shade reduces visible light by ~85% compared to bare glass. Window film barely affects visible light at all (most modern UV films are optically clear). The right combination depends on whether you want a dimmer room or a fully-lit room with invisible UV protection.
What about exterior shades and awnings?
Exterior shades and awnings are extremely effective because they stop UV before it hits the glass. They’re standard in much of Europe and parts of the US, but rare in Canada because of snow loads and winter conditions. We can install retractable exterior shades on protected south-facing patios; for general use, interior solar shades plus film are more practical for Edmonton homes.
