Blog cover image about how west-facing glass affects a home after 3 PM, with window blinds in the background and the article title prominent.

What West-Facing Glass Does to a Redding Home After 3 PM

And why the right window treatment changes more than you think

Est. Read Time: 6-8 minutes

Editor’s Note

At Plaza Interiors, the window treatment conversation almost never starts with window treatments. It starts with a house that feels too hot to enjoy, a bedroom that never gets fully dark, or a brand new floor someone wants to protect for years to come. These are real problems that Redding homeowners deal with every summer, and they deserve a real answer. This piece is our attempt to meet people where that conversation actually begins, giving them the full picture before they ever walk through the door.

At Plaza Interiors, people don’t walk in asking about window coverings.


They walk in saying something much simpler.

"It's so hot in my house."

And once we start talking, it almost always leads back to the same place.


The windows.

If You've Lived Through a Redding Summer, You Already Know

There’s a point every year when it shifts. It’s no longer just warm. It’s relentless.

Redding regularly sits in triple digits for weeks at a time. July alone averages more than 28 days above 90°F with typical afternoon highs approaching 100°F. By 3 or 4 in the afternoon, the sun hits directly through the glass and you can feel the room change almost instantly. You adjust the thermostat. You move to another space. You close a door. But the heat keeps building. And at some point, it stops being a comfort issue and starts being something you work around
every single day.

Why Windows Are the Real Problem

A lot of newer homes are designed to feel open and bright — large windows, sliding glass doors, open layouts that let light pour from one room to the next. It looks beautiful.

Until summer hits.

We regularly see homeowners realize that those same features are letting in far more heat than expected. Especially in west-facing rooms. That afternoon sun in Redding is strong, and it doesn’t let up quickly

Here’s something Shasta County’s own heat-safety resources point out: about 40% of the heat that builds up in a home comes in through the windows. That one fact changes how you look at the problem  and the solution.

What Actually Works in Redding Homes

For heat reduction and better insulation: 

 Cellular shades, especially Hunter Douglas Duette, are one of the most effective solutions for Redding’s climate. The honeycomb structure traps
air at the window, reducing how much heat transfers into the room. They’re different from what
you’d find at a big-box store, and the difference is noticeable.

For room darkening and better sleep: 

A properly fitted room darkening roller or cellular shade works best but fit matters just as much as fabric. Hunter Douglas uses the term “room darkening” rather than blackout for good reason: even the best shade will have some light at the edges, and that’s just the nature of how windows work. What matters is minimizing those gaps with the right installation. When the fit is right, the result is a room that’s genuinely dark and noticeably cooler.

For large windows and sliding doors:

Scale matters. Solutions designed for oversized openings we recommend panel systems and layered treatments to create balance between light control, heat management, and how the room actually feels to live in.


Explore custom window covering options in Redding

What Most People Get Wrong

This is where most of the frustration comes from.


We regularly meet homeowners who already tried to fix the problem. They installed something labeled “blackout” and are surprised when light still comes through the edges which is actually expected, and why Hunter Douglas calls it room darkening instead. They chose shutters because they liked the look, but the room still overheats every afternoon. Or they ruled out certain options without realizing how flexible those solutions actually are.

It’s not that they made the wrong choice. They just didn’t have the full picture yet.

What the Sun Is Doing to Your Floors, Furniture, and Rugs

Sunlit music room with a grand piano, an acoustic guitar, bold wall art, and a long striped rug by large windows.

This is something people often don’t think about until they notice it and by then, the damage is already done.

Direct sunlight doesn’t just heat a room. It fades everything in its path. Flooring, rugs, upholstery, drapery…basically anything exposed to consistent direct sun will fade over time. It’s not a maybe. UV light breaks down the dyes and fibers in organic materials, and visible light contributes too. The only real protection is reducing how much direct sun reaches those surfaces in the first place.

One thing worth knowing: this applies to interior materials across the board. Rugs, hardwood, LVP, fabric furniture, artwork — all of it. The exception is outdoor-rated fabric specifically engineered with UV resistance, like what you’d find on patio furniture. Indoor materials aren’t built for that kind of exposure.

And there’s a heat layer on top of the fading. In rooms with large west-facing windows, floors absorb solar energy all afternoon and release it back into the room by evening. Darker flooring holds more of that heat. We’ve stood in living rooms where you can feel warmth radiating off the floor long after the sun has moved on.

Managing light at the window protects more than your comfort. It protects everything you’ve
invested in the room.

A Real Story From a Redding Home

A client came to Heather with a 1980s home on Westside Redding with original dual-pane aluminum windows that were still in great shape. No need to replace them. But the house had brand new flooring, and with the sun exposure those rooms were getting, that flooring wasn’t going to stay new for long.

Replacing the windows wasn’t really on the table anyway. Stucco exteriors make window replacement more complicated it’s not impossible, but it’s a bigger project than most homeowners want to take on when the windows themselves are perfectly functional.

The right answer was room darkening window coverings. They went in, the flooring got the UV protection it needed, and the rooms became noticeably more comfortable in the process.

That’s usually how it works. One solution that does more than one thing.

Where Motorization Makes More Sense Than You'd Think

Living room with large window blinds drawn, pink sofa, and wooden coffee table.

Motorization is often seen as a luxury but in Redding, it becomes something more practical than that.

Being able to schedule your shades to close during peak heat hours means your home is actively managing sunlight without you having to think about it. For PG&E customers, this can also align with peak energy-rate periods, reducing how hard your cooling system has to work. For homeowners inside Redding city limits, Redding Electric Utility recommends window treatments as one of their core strategies for reducing summer energy use alongside insulation and thermostat management.

In a climate where the sun changes the feel of a room hour by hour, that level of quiet control
adds up.

→ Learn about Hunter Douglas motorized shades

Fire Season Changes the Equation

This is specific to living here.

During fire season, windows stay closed. Airflow is limited. Homes have to hold their environment longer without outside help. Guidance from Shasta County’s heat and safety resources, AirNow and the EPA recommends keeping windows shut during smoke events which means your home has to manage heat and air quality from the inside.

That’s when window treatments stop being a design decision and become part of how your home actually takes care of you.

Plaza Tip:

Closing your shades during peak heat hours

Especially on west-facing windows, can noticeably reduce how much heat builds up inside. It’s
one of the simplest ways to protect your comfort, reduce strain on your cooling system, and keep your home more stable on the hardest days.

A Note About Hunter Douglas in This Climate

Not all window treatments are built the same, and the difference becomes very clear in a place like Redding.

Hunter Douglas designs shades specifically for performance not just appearance. Their Duette cellular shades are engineered to reduce unwanted solar heat through windows, and their motorized PowerView system lets you schedule, adjust, and automate without ever touching a cord.

As an authorized Hunter Douglas dealer in Redding, Plaza Interiors can walk you through which solutions actually make sense for your rooms, your windows, and the way you live — not just
what looks good in a catalog.

If Your House Feels Too Hot, Start Here

Most people don't need more options. They need the right starting point.

  • If your home feels too hot in the afternoon → focus on shades that reduce heat at the
    glass, not just light
  • If your bedroom never fully darkens → prioritize a room darkening system with a
    close, professional fit
  • If you have new flooring, rugs, or furniture you want to protect → room darkening or
    solar shades will reduce UV exposure and fading
  • If your windows are large or west-facing → look for treatments designed for scale and
    real coverage


This is usually where things start to feel manageable again

FAQ

What's the difference between blackout and room darkening shades?

“Blackout” is a common consumer term, but Hunter Douglas uses “room darkening” because even a well-fitted shade will allow a small amount of light at the edges, that’s just how windows work. Room darkening shades are designed to get as close to full darkness as possible. Professional fit minimizes those gaps significantly, which is why installation matters just as much as the fabric you choose.

Yes, especially in west-facing rooms. In a climate where afternoons regularly push into triple digits, room darkening shades reduce both heat and light at the window, which improves comfort and takes pressure off your cooling system. They also protect flooring, furniture, and rugs from UV fading — which adds up to real value over time.

They do. Room darkening shades block direct sunlight before it enters the home, which reduces solar heat gain at the glass. In Redding’s climate, this can make a noticeable difference in how a room feels, particularly in the afternoon hours when west-facing windows take the hardest hit.

Yes. Direct sunlight causes fading in flooring, rugs, upholstery, and fabric — UV light breaks down dyes and fibers over time, and visible light contributes too. Room darkening or solar shades reduce how much
direct sun reaches those surfaces. This is especially important for new flooring investments or quality furniture that you want to last. The exception is outdoor-rated fabric with built-in UV resistance. Interior materials aren’t engineered for that level of sun exposure.

Treatments that block or reduce solar heat gain not just light, perform best in west-facing rooms. Hunter Douglas Duette cellular shades are among the most effective because the honeycomb construction insulates at the window itself. Fit matters too: a shade that leaves gaps at the edges loses much of its benefit.

Cellular shades with a room darkening fabric and a close, professionally fitted installation are the most effective combination. Hunter Douglas Duette shades, available through Plaza Interiors as an authorized Redding dealer, are designed specifically for both insulation and light control in high-heat climates.

Closing Thought

Most people don’t start thinking about window treatments because of design.
They start because something doesn’t feel right. Because it’s too hot. Too bright. Too hard to ignore.

And once it’s fixed, the difference is immediate.

If you’ve been feeling it this season, it’s worth a conversation.

Come take a look when you’re ready.

Plaza Interiors is an authorized Hunter Douglas dealer serving Redding and Shasta County. Our showroom is located at 1828 Park Marina Drive.