How Do You Measure Your Windows for Blinds?

To measure for blinds, first decide on an inside mount (inside the window frame) or an outside mount (on the wall or trim above it). For an inside mount, measure the width at the top, middle, and bottom and use the narrowest, then measure the height at left, center, and right and use the longest. For an outside mount, measure the area you want to cover and add a few inches on each side. Always measure to the nearest one-eighth inch, and never reuse one window’s numbers for another.

Inside mount or outside mount, which do you need?

The mount decides how you measure. An inside mount sits inside the window frame for a clean, built-in look that shows off the trim, and it needs enough depth in the frame for the blind to fit. An outside mount attaches to the wall or trim above and outside the opening, which makes a window look larger, hides an out-of-square frame, and blocks more light. Shallow frames, cranks, or obstructions often push you to an outside mount. Choose the mount first, because the measuring steps differ.

How do you measure for an inside-mount blind?

For an inside mount, precision is everything, because the blind is cut to fit snugly inside the opening:

  • Measure the width at the top, middle, and bottom of the opening. Use the narrowest of the three.
  • Measure the height at the left, center, and right. Use the longest of the three.
  • Do not round or adjust the numbers. The workroom makes the deductions needed for a proper fit.
  • Check the frame depth to be sure it is deep enough for the product you want.

How do you measure for an outside-mount blind?

For an outside mount, you are covering an area rather than fitting an opening. Measure the width of the space you want the blind to cover, then add about 2 to 3 inches on each side to block light and give privacy. For height, measure from where you will mount the headrail, usually a few inches above the opening, down to where you want the blind to end, whether at the sill, below it, or to the floor. More overlap means less light leak around the edges.

What are the most common measuring mistakes?

Custom blinds are cut to your numbers and cannot be returned, so small errors get expensive. The frequent ones are: measuring only one point instead of three across the width and height, rounding to the nearest inch instead of the nearest eighth, mixing up width and height (always list width first), reusing one window’s measurements for a similar-looking window, and forgetting to check frame depth for an inside mount. Bay windows, arches, and sliders add angles and stacking that are especially easy to get wrong.

Should you measure yourself or have a pro do it?

For a couple of standard windows, careful DIY measuring can work. For a custom order, and especially for a whole home or any specialty windows, a professional measure is worth it. On a custom blind, a fraction of an inch off means gaps, binding, or a unit that will not fit, and since it is cut to size it cannot be returned. That is why Long Island Custom Blinds includes professional measurement as part of the free in-home consultation, so the fit is guaranteed and the mistake risk is on us, not you.

FAQ

Do you measure width or height first for blinds?

Always width first, then height. The industry lists measurements as width by height, and reversing them is one of the most common ordering errors.

How much space do you need for an inside-mount blind?

Enough frame depth for the headrail to sit inside the opening, which varies by product. Deeper products like some cellular or wood blinds need more depth. If the frame is too shallow, an outside mount is the fix.

How accurate do window measurements need to be?

To the nearest one-eighth of an inch. Custom blinds are fabricated to your exact numbers, so rounding even to the nearest quarter or half inch can cause gaps or a poor fit.

Can you return custom blinds if they do not fit?

Usually not, because they are made to your specific window measurements. That is the biggest reason a professional measure is worth it on a custom order, since a mismeasured blind cannot be returned.

Rather not risk the measurement? Long Island Custom Blinds measures every window for you during a free in-home consultation across Nassau, Suffolk, and Queens. Call (516) 363-4670, visit longislandcustomblinds.com, or stop by our showroom at 2000 Fisher Avenue, Suite 122, Merrick, NY 11566.

Related services: Custom Blinds | Shop-at-Home Consultation | Professional Installation

More from the blog: How Much Do Custom Blinds Cost on Long Island? | Blinds vs. Shades: Which Is Better for Long Island Homes?

What Are Zebra Shades (Dual Shades), and Are They Worth It?

Zebra shades, also called dual or day-night shades, are roller shades made of alternating sheer and solid fabric bands. As you move the shade, the bands line up to either let in filtered light and a view, or overlap to give privacy and shade. They combine the look of a roller shade with the light control of a blind in one modern piece. For living rooms, kitchens, and home offices, they are often worth it. Here is how they work and where they fit.

How do zebra shades work?

A zebra shade is really two layers of banded fabric on a single roller. One position aligns the sheer bands over each other so light and the outside view come through softly. Roll the shade slightly and the solid bands shift to overlap the sheers, closing the view and cutting the light for privacy. You are not raising and lowering the whole shade, just nudging the bands in and out of alignment, which gives you a range of light levels from open to nearly blacked out.

What is the point of zebra shades?

They solve a common problem: wanting light and a view during the day without giving up privacy at night, all in one shade. Instead of layering a sheer and a blackout treatment, a zebra shade does both jobs. That makes them popular in rooms where light changes through the day, like living rooms, kitchens, and home offices. Their clean, modern banded look also suits updated Long Island interiors, which is part of why demand for them has grown.

Can people see in through zebra shades?

It depends on the position and the time of day. With the sheer bands aligned, you can see out and, in bright indoor light at night, someone outside can see soft shapes inside. Shift the bands so the solids overlap and daytime privacy is strong. For full nighttime privacy in a bedroom, a blackout shade or a zebra with a room-darkening option is the safer choice. Think of standard zebra shades as excellent for daytime privacy and view control, not guaranteed nighttime blackout.

How much do zebra shades cost?

Custom zebra shades on Long Island typically run about $150 to $400 per window installed, depending on size, fabric quality, and whether you add motorization. Motorized zebra shades, which are popular for their smooth banded movement, add roughly $150 to $400 per window. Larger windows and premium fabrics sit at the top of the range. As with any custom order, the exact price comes from measuring the specific window, so an in-home quote is the way to know.

What are the disadvantages of zebra shades?

A few worth knowing. Standard zebra shades are not true blackout, so a bedroom that needs full darkness may want a different or upgraded option. The banded fabric can collect dust and needs gentle cleaning. And because alignment matters, they work best on standard rectangular windows rather than arches or unusual shapes. In the rooms they suit, though, the flexibility of light, view, and privacy in one shade is exactly what makes them worth it.

FAQ

What is the difference between zebra blinds and zebra shades?

They are the same product under different names. Some people say zebra blinds because of the banded, blind-like light control, but the material is a roller shade fabric, so zebra shades is the more accurate term.

Are zebra shades good for bedrooms?

They are great for daytime light and privacy, but standard versions are not full blackout. For a bedroom that needs total darkness, choose a blackout shade or ask about a room-darkening zebra option.

Are zebra shades still in style?

Yes. Their clean, modern banded look has made them one of the trendier window treatments in recent years, and they suit updated, contemporary interiors well.

Can zebra shades be motorized?

Yes. Motorization suits zebra shades especially well, since the banded alignment moves smoothly by remote or app, and it removes cords for a child-safe, clean look.

Curious whether zebra shades fit your rooms? Long Island Custom Blinds brings samples to you with a free in-home consultation across Nassau, Suffolk, and Queens. Call (516) 363-4670, visit longislandcustomblinds.com, or stop by our showroom at 2000 Fisher Avenue, Suite 122, Merrick, NY 11566.

Related services: Custom Shades | Motorized Window Treatments | Shop-at-Home Consultation

More from the blog: Blinds vs. Shades: Which Is Better for Long Island Homes? | How Much Do Custom Blinds Cost on Long Island?

Roman Shades: Styles, Cost, and Are They Right for Your Home?

Roman shades are fabric window shades that fold up into soft, even pleats as they rise and lie flat and smooth when lowered. They give a window the warmth and softness of drapery with the clean function of a shade, which is why they are one of the most popular choices for living rooms, dining rooms, and bedrooms. Custom Roman shades on Long Island typically run $150 to $600 or more per window, depending on fabric, style, and lift. Here is how the styles differ and where they work best.

What are Roman shades?

A Roman shade is a single panel of fabric on a lift system. As you raise it, the fabric gathers into horizontal folds; as you lower it, it unrolls into a flat, tailored panel that covers the window. Unlike blinds, there are no slats to tilt, and unlike a roller shade, the fabric stacks in soft pleats rather than wrapping around a tube. That fabric look is what makes them feel more like a finished, decorated window than a purely functional one.

What are the main styles of Roman shades?

The style is mostly about how the folds look:

  • Flat-fold: a smooth, tailored panel with clean horizontal lines when raised. The most modern and versatile look.
  • Hobbled (looped): soft, cascading loops of fabric even when fully lowered, for a fuller, more traditional feel.
  • Relaxed: a gentle smile-shaped curve along the bottom for a casual, cottage look.

You can also add a liner, which changes both the look and the function, from light-filtering to full blackout.

How much do Roman shades cost?

Custom Roman shades on Long Island generally run $150 to $600 or more per window installed. Fabric is the biggest price driver: a standard fabric sits at the lower end, while designer, textured, or specialty fabrics push higher. A blackout or thermal liner, motorization, and larger windows all add cost. Because Roman shades can be made from custom fabric, you can match an existing room or supply your own material. An in-home measure and fabric selection give you the exact number.

What rooms are Roman shades best for?

Roman shades shine in rooms where you want softness and style: living rooms, dining rooms, bedrooms, and formal spaces. They layer beautifully under drapery or stand alone as the main treatment. With a blackout liner they work well in bedrooms, and light-filtering fabrics give a warm glow in living areas. They are less ideal for very humid or high-splash spots like a shower-side bath window or directly over a kitchen sink, where a faux-wood blind or moisture-friendly shade holds up better on Long Island.

Are Roman shades worth it?

For the right rooms, yes. They deliver a custom, decorator look that plain blinds cannot, add fabric warmth and texture, and can be lined for light control and insulation. They cost more than basic blinds, and the fabric needs gentle care, but on the windows people see most, living and dining rooms, that upgrade in style is usually worth it. Cordless and motorized lifts also make them safe and easy in homes with kids and pets.

FAQ

What is the difference between flat and hobbled Roman shades?

Flat-fold shades pull up into crisp, smooth folds and look tailored and modern. Hobbled shades keep soft, looped folds of fabric even when down, for a fuller, more traditional and luxurious look. Hobbled uses more fabric and usually costs a bit more.

Can Roman shades be blackout?

Yes. Adding a blackout or room-darkening liner behind the fabric makes a Roman shade block most light, which is ideal for bedrooms. Paired with an outside mount or side channels, the light gaps shrink even further.

Are Roman shades outdated?

No. Flat-fold Roman shades in particular are a current, clean look, and the style has stayed popular for years because fabric never really goes out of style. Choosing an updated fabric and a cordless or motorized lift keeps them modern.

Can you make Roman shades from your own fabric?

Often, yes. Custom Roman shades can be made from designer fabrics or, in many cases, fabric you supply, so you can match bedding, upholstery, or a specific room palette. Ask during your in-home consultation.

Want to see Roman shade fabrics in your own space? Long Island Custom Blinds brings hundreds of samples to you with a free in-home consultation across Nassau, Suffolk, and Queens. Call (516) 363-4670, visit longislandcustomblinds.com, or stop by our showroom at 2000 Fisher Avenue, Suite 122, Merrick, NY 11566.

Related services: Custom Shades | Drapery | Shop-at-Home Consultation

More from the blog: Blinds vs. Shades: Which Is Better for Long Island Homes? | How Much Do Custom Blinds Cost on Long Island?

Are Cellular (Honeycomb) Shades Worth It? Energy Savings on Long Island

For most Long Island homes, cellular shades are worth it. Their honeycomb pockets trap air at the window, which is the best insulation of any window covering and a real help against high Nassau and Suffolk energy bills. They cost a bit more than basic blinds, usually $60 to $220 per window, but they lower heating and cooling costs, soften light beautifully, and come in light-filtering to full blackout. The main tradeoffs are price and fabric care, which we cover below.

What are cellular shades?

Cellular shades, also called honeycomb shades, are made of pleated fabric that forms rows of small air pockets when you look at them from the side, like a honeycomb. Those pockets are the whole point: the trapped air creates a layer of insulation between your room and the glass. They raise and lower as one soft piece, come in single, double, and triple-cell versions, and range from sheer light-filtering to complete blackout depending on the fabric.

How much do cellular shades save on energy?

More than any other shade. The U.S. Department of Energy reports that 25 to 30 percent of a home’s heating and cooling energy is lost through windows, and insulating cellular shades are the strongest window-covering fix. The DOE finds they can cut heat loss through windows by up to 40 percent in winter and reduce unwanted solar heat gain by up to 80 percent in summer. On an older Long Island home with single-pane or aging double-pane windows, that shows up directly on the ConEd or PSEG bill through our cold winters and hot, humid summers.

How much do cellular shades cost?

Custom cellular shades on Long Island typically run $60 to $220 per window installed, depending on size, fabric, and cell type. A double-cell shade insulates better than a single-cell and costs a little more. Adding motorization, which is popular and child-safe, adds roughly $150 to $400 per window. A whole-home order usually lowers the per-window price. These are planning estimates; every window is priced to its exact size, so an in-home measure gives the real number.

What are the downsides of cellular shades?

They are not perfect for every room. The pleated fabric can collect dust and is harder to spot-clean than a wipeable faux-wood blind, so a steamy bathroom or a greasy kitchen window is not their best use. They cost more than basic aluminum or vinyl blinds up front. And because they raise and lower as one piece without tilting slats, you get less fine-grained daytime light control than blinds. For bedrooms, living rooms, and family rooms, though, the comfort and energy savings usually outweigh those points.

Do cellular shades look cheap or dated?

No, when you choose quality fabric. Premium cellular shades from brands like Hunter Douglas, Graber, and Norman come in rich textures, colors, and cordless or motorized lifts that read clean and current, not builder-grade. The thin, flimsy look people associate with cheap honeycomb shades comes from bargain stock versions. A custom shade in a good fabric, fit precisely to the window, looks tailored and modern.

Are cellular shades right for your Long Island home?

They are an easy yes for bedrooms and main living spaces, especially in older South Shore and North Shore homes where drafty windows drive up energy costs. Choose blackout cells for bedrooms and nurseries, and light-filtering cells where you want a soft glow with privacy. For kitchens, baths, and waterfront-facing rooms with high humidity near the Great South Bay or the Sound, a faux-wood blind may serve better. The best call comes from seeing samples in your own light, which is exactly what an in-home consultation is for.

FAQ

What are the cons of cellular shades?

They cost more than basic blinds, the fabric collects dust and is harder to clean than a wipeable slat, and they offer less precise daytime light control since they do not tilt. In the right rooms, the insulation and look outweigh these.

Do cellular shades really lower energy bills?

Yes. The DOE reports they can cut window heat loss by up to 40 percent in winter and solar heat gain by up to 80 percent in summer, which matters on Long Island’s high energy costs and older windows.

Single-cell or double-cell shades, which is better?

Double-cell shades have two rows of air pockets, so they insulate better and are the stronger choice for very cold or very sunny windows. Single-cell shades cost a little less and are fine for milder rooms.

Are cellular shades good for blackout in bedrooms?

Yes. Blackout cellular shades with room-darkening fabric, especially paired with side channels, block nearly all light, making them a top pick for bedrooms, nurseries, and media rooms.

Want to see cellular shades in your own light? Long Island Custom Blinds brings the showroom to you with a free in-home consultation across Nassau, Suffolk, and Queens. Call (516) 363-4670 or visit longislandcustomblinds.com.

Related services: Custom Shades | Motorized Window Treatments | Shop-at-Home Consultation

More from the blog: Blinds vs. Shades: Which Is Better for Long Island Homes? | How Much Do Custom Blinds Cost on Long Island?

How Much Can Window Blinds Actually Save on Energy Bills?

Window blinds and shades reduce heating and cooling costs by 10–25% for most homes, according to data from the U.S. Department of Energy. The DOE estimates that about 30% of residential heating and cooling energy escapes through windows. Adding the right window coverings creates a thermal barrier that slows that transfer — keeping cooled air inside during summer and heated air inside during winter.

For a Long Island household spending $200–$300 per month on electricity during peak summer, that translates to $20–$75 in monthly savings from window treatments alone. The variation depends on the product type, how many windows are covered, and whether the treatments are used consistently throughout the day.

The Physics Behind the Savings

Windows lose energy in two directions. In summer, solar radiation passes through the glass, strikes interior surfaces, and converts to heat — forcing your AC to run harder. In winter, heat inside the home conducts through the glass and radiates outward, making your furnace work overtime.

Window treatments address both problems. Reflective surfaces bounce solar radiation back before it enters the room. Insulating materials, like the air pockets in cellular shades, slow conductive heat transfer. The combination means your HVAC system cycles less frequently, which is where the savings come from.

The key metric is the U-Factor — a measure of heat transfer through a window assembly. Lower is better. A standard double-pane window has a U-Factor around 2.6 W/(m²·K). Adding a single-cell honeycomb shade drops that to approximately 1.6, a 38% reduction in heat transfer.

Savings by Product Type

ProductSummer Heat Gain ReductionWinter Heat Loss ReductionEst. Annual Savings
Cellular, honeycomb shadesUp to 80%Up to 40%15–25%
Reflective blinds and roller shades45–65%10–20%10–15%
Plantation shutters40–50%Moderate10–15%
Motorized shades, any productSame thermal performance as base product — value comes from consistent daily use through automated scheduling.
Cellular, Honeycomb Shades

Cellular shades are the highest-performing option for energy efficiency. Their honeycomb structure traps air in sealed pockets, creating insulation that works in both directions.

Double-cell designs outperform single-cell by creating two insulating air layers instead of one. For Long Island homes with older windows, double-cell cellular shades represent the single biggest efficiency upgrade you can make without replacing the glass.

Explore cellular shades →

Reflective Blinds and Roller Shades

When fully closed on a sunny window, highly reflective blinds reduce heat gain by roughly 45%, per DOE data. Roller shades with a reflective or metallic backing push that to 50–65%.

Light-colored finishes reflect more solar radiation than dark ones. If you are buying blinds specifically for energy savings, white or off-white with reflective backing outperforms every other color.

Explore roller shades →

Plantation Shutters

Wood and composite shutters add mass and an air gap between the louver panel and the window, slowing conductive heat transfer.

Shutters perform best when louvers are fully closed. Angled louvers let in light but also allow some heat transfer. The trade-off between light control and thermal performance is adjustable throughout the day.

Explore plantation shutters →

Motorized Shades With Scheduling

Motorization does not change a shade’s thermal properties, but it eliminates the biggest variable in energy savings: human behavior. A shade that stays open all day in an empty house provides no energy benefit.

Automated shades programmed to close during peak sun hours, roughly 11 a.m.–4 p.m. on Long Island in summer, and reopen in the evening deliver consistent performance every day, whether anyone is home or not.

A Toronto office retrofit documented a 12% reduction in HVAC costs after installing automated honeycomb blinds — a result attributed entirely to consistent scheduling rather than any change in the product itself.

Explore motorized blinds →

What Affects Your Actual Savings

FactorImpact on Savings
Window orientationSouth- and west-facing windows absorb the most solar energy. Covering these alone accounts for the majority of cooling savings.
Fit and installationA gap of just 1/4 inch on each side can reduce a shade’s effectiveness by 20–40%. Inside-mount with precise measurements outperforms outside-mount.
Consistency of useData assumes treatments are closed during peak hours. Motorized scheduling solves the human-behavior variable.
Existing window qualityHomes with older single-pane windows gain the most. Modern Low-E glass already provides some protection, so the incremental benefit is smaller.
Number of windows coveredCovering south and west exposures alone captures roughly 60–70% of total possible savings at a fraction of the cost.

Long Island-Specific Context

Long Island energy costs run higher than the national average due to PSEG Long Island and National Grid rate structures. The average Long Island household pays roughly $200–$300 per month for electricity in summer, with AC accounting for a large share.

At the conservative end of the savings range, 10%, that is $20–$30 per month. At the upper end, 25%, it is $50–$75 per month. Over a five-year period, the cumulative savings from energy-efficient window treatments often exceed the initial cost of the products — especially for cellular shades and motorized systems.

Many Long Island homes were built in the 1950s–1970s with windows that have limited thermal performance by modern standards. The case for quality window coverings becomes a straightforward cost-of-ownership calculation rather than a pure aesthetic decision.

The Payback Period

A full-home installation of cellular shades on Long Island typically runs $2,000–$5,000, depending on the number and size of windows. With annual energy savings of $250–$750, the payback period is approximately 3–7 years. After that, the savings continue for the life of the product, typically 10–15 years for quality cellular shades.

Motorization adds $150–$300 per window but can accelerate savings by ensuring consistent daily use. The payback math shifts further in your favor if you are also avoiding furniture replacement from UV fading.

How to Start

1. Identify Your Worst Windows

Walk through your home at 2 p.m. on a sunny day. The rooms that feel hottest have the windows that need attention first.

2. Prioritize South and West Exposures

These face the most intense afternoon sun and contribute the most to your cooling load.

3. Choose Cellular Shades for Maximum Efficiency

If budget allows, choose double-cell cellular shades in a light-filtering or blackout opacity.

4. Get Precise Measurements

A 1/4-inch error reduces performance significantly. Professional in-home measurement eliminates this risk.

Long Island Custom Blinds offers free shop-at-home consultations where we measure every window and recommend products based on orientation, room use, and your energy goals — with no obligation to purchase.

Frequently Asked Questions

How much do blinds save on electric bills?

Window blinds reduce heating and cooling costs by 10–25%, depending on the product type and how consistently they are used. For a Long Island home spending $250 per month on summer electric, that is $25–$62 per month.

Which blinds save the most energy?

Cellular, honeycomb shades deliver the highest energy savings — up to 25% reduction in heating and cooling costs — due to their insulating air-pocket design.

Do blinds help in winter too?

Yes. Cellular shades reduce heat loss through windows by up to 40% in winter. Opening south-facing blinds during sunny winter days to capture free solar heat, then closing them at sunset, maximizes the benefit in both directions.

Is it worth motorizing blinds for energy savings?

For homes where no one is present during peak heat hours, roughly 11 a.m.–4 p.m., motorization ensures shades close automatically every day. The consistency can mean the difference between theoretical savings and actual savings on your bill.

Do I need to cover every window?

Covering south- and west-facing windows alone captures 60–70% of the total possible savings. Start there and expand if budget allows.

How Much UV Do Window Blinds Actually Block?

Most quality window blinds and shades block between 95% and 99% of ultraviolet radiation, depending on the product type and fabric density. Cellular shades with solid fabric block over 99% of UV rays. Solar shades block 95–97%. Standard window glass, by comparison, blocks about 97% of UVB rays but only 37% of UVA rays — and UVA is the wavelength responsible for most interior fading and material degradation.

That gap between glass-only protection and what a proper window treatment provides is where furniture fading, hardwood floor discoloration, and fabric breakdown happen.

Why Glass Alone Falls Short

Standard residential glass stops nearly all UVB radiation, the type that causes sunburn, but allows the majority of UVA radiation to pass through. UVA penetrates deeper into materials and is the primary driver of fading in fabrics, wood finishes, leather, and artwork.

According to the University of Central Florida’s Florida Solar Energy Center, ultraviolet radiation accounts for approximately 40% of the total fading damage to interior furnishings. Visible light contributes another 25%, and heat accounts for the remaining 25%, with miscellaneous factors making up the rest.

The practical takeaway: even rooms that feel shaded or do not receive direct sunlight still experience UV exposure throughout the day. UVA rays penetrate cloud cover effectively, so overcast days on Long Island provide almost no natural protection for your interiors.

UV Blocking by Product Type

ProductUV BlockHow It Works
Cellular shades, solid fabric99%+Dense fabric layers absorb and block UV across the full spectrum.
Solar shades, 3% openness95–97%Tight weave reflects UV while allowing filtered visible light through.
Solar shades, 5–10% openness85–93%Wider weave trades some UV protection for more view and natural light.
Plantation shutters, closed95%+Solid louver material blocks UV when fully closed while remaining adjustable.
Roller shades, standard fabric80–95%Protection varies by fabric weight, opacity, and material construction.
Roller shades, blackout99%+Opaque backing blocks virtually all light and UV.
Faux wood blinds, closed90–95%Solid slat material blocks UV, though gaps between slats reduce total coverage.
Standard aluminum blinds, closed85–90%Reflective surfaces bounce UV, but slat gaps limit full coverage.

The key variable across all products is coverage completeness. A cellular shade that extends fully across the window opening blocks 99%+ because there are no gaps. Horizontal blinds with slats, even when closed, have micro-gaps between each slat where UV can pass through. That is why slatted blinds sometimes leave striped fading patterns on furniture and floors.

What UV Damage Looks Like in a Home

UV damage accumulates gradually. Most homeowners do not notice it until they move a piece of furniture and see the color difference beneath it. Common signs include:

Hardwood Floors

Unprotected sections can yellow or darken unevenly, especially near south- and west-facing windows. The damage is cumulative and typically irreversible without refinishing.

Upholstered Furniture

Fabric dyes break down over time, causing color shift and eventual weakening of fibers. Cotton and linen tend to fade fastest. Solution-dyed acrylics and olefin resist UV better, but they can still degrade after years of unfiltered exposure.

Leather

UV exposure dries out natural oils, leading to cracking and surface discoloration. Regular conditioning can slow the process, but it does not prevent UV-related damage without proper filtering at the window.

Artwork and Photographs

Pigments and photographic dyes are among the most UV-sensitive materials in a home. Gallery-quality framing with UV glass protects individual pieces, but window treatments help protect the entire room.

Which Rooms Need UV Protection Most

South-Facing Rooms

South-facing rooms receive the most consistent UV exposure throughout the year. The sun tracks across the southern sky, delivering direct light for 6–8 hours per day in summer.

West-Facing Rooms

West-facing rooms take concentrated afternoon UV from roughly 1–6 p.m., which are the hours when UV intensity is often highest. These rooms are where homeowners typically see the most dramatic fading if windows are uncovered.

East-Facing Rooms

East-facing rooms receive morning UV exposure. The intensity is lower than afternoon sun, but the cumulative effect over years can still cause noticeable fading on furniture positioned near windows.

North-Facing Rooms

North-facing rooms receive the least direct UV. Light-filtering roller shades or standard blinds are typically sufficient for these areas.

For Long Island homes, where many living rooms, dining rooms, and primary bedrooms face south or west to maximize natural light, UV protection is a practical necessity for preserving the furnishings inside those rooms.

Matching the Product to the Problem

Protecting Hardwood Floors

Cellular shades or roller shades with UV-blocking fabric provide the most consistent protection because they cover the full window opening without gaps. For rooms where you want to keep the view, solar shades at 3–5% openness can block 93–97% of UV while still allowing you to see outside.

Protecting Furniture Near Windows

Move high-value pieces away from direct sun paths whenever possible. For furniture that stays in place, cellular shades or blackout roller shades provide the highest UV block. Pairing light-filtering shades with a top-down/bottom-up feature lets you block UV at the lower half of the window, where furniture sits, while allowing diffused light in from above.

Kitchens and Bathrooms

Faux wood blinds or composite plantation shutters resist moisture while still blocking 90–95% of UV when closed. Fabric-based options can trap humidity in these rooms, so hard materials are often a better fit.

Whole-Home Protection With Minimal Effort

Motorized shades programmed to lower during peak UV hours, typically 10 a.m.–4 p.m., can protect every room without anyone needing to remember to close them. This is especially valuable for Long Island households where both adults work and no one is home during the hours when UV exposure peaks.

How to Evaluate UV Protection When Shopping

Two metrics matter most when comparing products:

UPF, or Ultraviolet Protection Factor

UPF measures how much UV radiation passes through a fabric. A UPF of 50 means only 1/50th, or 2%, of UV rays penetrate the material. For window treatments, look for UPF 30 or higher, which blocks at least 97% of UV.

Openness Factor

Openness factor applies specifically to solar shades and indicates the percentage of the weave that is open. Lower openness means more UV is blocked. A 1% openness shade blocks more UV than a 10% openness shade, but it also allows less visible light and view.

When comparing products, ask for the specific UV block percentage rather than relying on marketing terms like “UV-resistant” or “sun-safe,” which do not have standardized definitions.

Professional Measurement Prevents Gaps

UV protection is only as good as the coverage. A shade that is 1/2 inch too narrow on each side leaves a 1-inch strip of unfiltered UV entering the room — enough to create a visible fading line on a hardwood floor within six months.

Long Island Custom Blinds measures every window on-site during a free shop-at-home consultation to ensure inside-mount shades fit flush within the frame, helping eliminate light gaps and maximize UV coverage.

FAQ

Do all blinds block UV rays?

All window coverings reduce UV exposure to some degree, but the percentage varies widely. Cellular shades and blackout roller shades block 99%+. Standard aluminum blinds with slats block 85–90% but allow UV through the gaps between slats.

Can UV rays come through closed blinds?

Through solid-fabric treatments like cellular or roller shades, virtually no UV passes when the shade is fully closed. Through slatted blinds, including horizontal or vertical blinds, small amounts of UV can penetrate the gaps between slats. This is why slatted products sometimes leave striped fade patterns on floors.

Do solar shades protect furniture from fading?

Yes. Solar shades with a 3% openness factor can block up to 97% of UV rays, which addresses the primary cause of furniture fading. They are especially effective because they can remain down throughout the day without making the room feel dark.

How long before UV damage becomes visible?

On south- or west-facing windows, unprotected hardwood floors and fabrics can show noticeable fading within 6–12 months. The damage is cumulative, meaning it begins immediately but takes time to become visible.

Is UV protection the same as light filtering?

No. Light filtering describes how much visible light passes through a treatment. UV blocking describes how much ultraviolet radiation is stopped. A shade can be light-filtering, allowing soft daylight into the room, while still blocking 99% of UV rays. Cellular shades in a light-filtering opacity are a good example because they let diffused light in while stopping nearly all UV.