Have you ever looked out a dirty window? It can be hard to see the beautiful world outside. Windows get dirty from rain, dust, and even bird droppings. Cleaning them can be a tough job. But what if there was an easy way to make your windows sparkle? There is! You can use windex for outdoor windows.
Clean windows let more light into your home. They also make your house look nicer. Using the right cleaner is important. Let’s learn how to keep your outdoor windows clean and clear.
Dirty windows can hide the beauty of nature. Imagine looking at a beautiful sunset through a grimy window. You would not see the colors as well. Using windex for outdoor windows can help you enjoy the view. It’s like giving your eyes a fresh, clean look at the world. Keep reading to learn the best ways to clean!

Key Takeaways
- Windex for outdoor windows is a simple way to make your view clearer and brighter.
- Always read the product label and follow safety precautions when cleaning windows.
- Use the right tools like a squeegee and microfiber cloths for streak-free results.
- Regular cleaning prevents dirt buildup and keeps your windows looking their best.
- Consider the weather; avoid cleaning in direct sunlight to prevent streaking.

Choosing the Right Windex for Outdoor Windows
Choosing the right windex for outdoor windows is important. You want a cleaner that is safe for your windows. You also want one that will get rid of dirt and grime. Some cleaners are made just for outdoor use. These cleaners are stronger and can handle tough stains. Look for a windex that says it is safe for glass. You should also check if it is safe for the environment. Some cleaners have harsh chemicals. These chemicals can hurt plants and animals. A good windex for outdoor windows will clean well and be gentle on the planet. Always read the label before you use any cleaner. This will help you choose the best one for your needs.
- Check the label for outdoor use.
- Choose a cleaner that is safe for glass.
- Consider environmentally friendly options.
- Read reviews from other users.
- Think about the type of dirt you need to remove.
It’s important to pick the right windex for outdoor windows. A good choice will save you time and effort. You will not have to scrub as hard. Your windows will look cleaner for longer. Think about what kind of dirt you usually get on your windows. Do you have a lot of dust? Or maybe you have bird droppings? Some cleaners are better at removing certain types of dirt. You can also look for a windex that has a special formula to prevent streaks. Streaks can make your windows look dirty even after you clean them. With the right cleaner, your windows will sparkle.
What Makes a Good Window Cleaner?
What makes a good window cleaner? A good window cleaner should be able to remove dirt and grime easily. It should not leave streaks behind. The cleaner should also be safe to use. Harsh chemicals can damage your windows or hurt you. A good window cleaner is also easy to use. You should not have to spend hours scrubbing. Look for a cleaner that sprays on easily and wipes off clean. Some cleaners even have special features. For example, some cleaners repel water. This can help keep your windows clean for longer. When choosing a window cleaner, think about what is important to you. Do you want a cleaner that is environmentally friendly? Or do you want one that is super strong? There are many different types of window cleaners available. You can find one that meets your needs.
Is Environmentally Friendly Cleaner Better?
Is an environmentally friendly cleaner better? Many people think so! Environmentally friendly cleaners use ingredients that are not harmful to the environment. They do not contain harsh chemicals that can pollute the air and water. These cleaners are often made with natural ingredients. They can be just as effective as traditional cleaners. Plus, they are safer for you and your family. When you use environmentally friendly cleaners, you are helping to protect the planet. You are also reducing your exposure to harmful chemicals. Some people worry that these cleaners will not work as well. But that is not true! Many environmentally friendly cleaners are very powerful. They can remove dirt and grime just as well as traditional cleaners. So, when you are choosing a window cleaner, consider an environmentally friendly option.
How Does pH Affect Cleaning Power?
Have you ever wondered how pH affects cleaning power? pH is a measure of how acidic or basic a substance is. Cleaners with a high pH are basic. Basic cleaners are good at removing grease and oil. Cleaners with a low pH are acidic. Acidic cleaners are good at removing hard water stains and mineral deposits. Most window cleaners have a neutral pH. This means they are neither acidic nor basic. They are designed to remove dirt and grime without damaging the glass. When choosing a window cleaner, you do not usually need to worry about the pH. But if you have a specific type of stain, you might want to consider it. For example, if you have hard water stains, you might want to use a slightly acidic cleaner. Always test the cleaner in a small area first to make sure it does not damage your windows.
In conclusion, choosing the right windex for outdoor windows involves considering factors like safety, effectiveness, and environmental impact. Read labels, check reviews, and think about the specific types of dirt you need to remove. By making an informed decision, you can ensure your windows sparkle and your home looks its best.
Fun Fact or Stat: Did you know that the original Windex formula was created in 1933 and contained ammonia and alcohol?

Tools Needed for Cleaning Outdoor Windows
To clean outdoor windows well, you need the right tools. A good squeegee is very important. It helps you remove the cleaner without leaving streaks. You also need microfiber cloths. These cloths are soft and will not scratch your windows. A bucket to hold your cleaning solution is also useful. You might need a ladder to reach high windows. Be careful when using a ladder. Have someone hold it steady for you. A long-handled brush can help you reach windows that are far away. With the right tools, cleaning your windows will be much easier. You’ll get great results with less effort.
- A high-quality squeegee for streak-free cleaning.
- Microfiber cloths to wipe away dirt.
- A bucket to hold your cleaning solution.
- A ladder for reaching high windows safely.
- A long-handled brush for distant spots.
- A hose for rinsing windows.
Having the right tools makes a big difference. Imagine trying to clean your windows with just a paper towel. You would probably end up with streaks and lint. A squeegee helps you remove the cleaner evenly. Microfiber cloths are gentle and absorbent. They pick up dirt without scratching the glass. A ladder helps you reach those high windows safely. Always follow safety rules when using a ladder. A long-handled brush is great for cleaning windows that are hard to reach. You can also use a hose to rinse your windows after cleaning. This will help remove any remaining cleaner. With the right tools, your windows will look amazing.
What is the Best Type of Squeegee?
What is the best type of squeegee? There are many different types of squeegees available. Some have rubber blades, while others have foam blades. Rubber blades are generally considered to be the best. They provide a smooth, streak-free finish. Look for a squeegee with a soft, flexible rubber blade. This type of blade will conform to the shape of the window. It will also remove water and cleaner more effectively. The size of the squeegee is also important. A larger squeegee is good for cleaning large windows. A smaller squeegee is better for cleaning smaller windows and corners. Make sure the squeegee handle is comfortable to hold. You will be using it for a while, so you want it to be easy to grip. A good squeegee is an investment that will last for years.
Why Use Microfiber Cloths?
Have you ever wondered why you should use microfiber cloths? Microfiber cloths are made from very fine fibers. These fibers are much smaller than the fibers in a regular cloth. This makes microfiber cloths very absorbent. They can pick up more dirt and water than other types of cloths. Microfiber cloths are also very soft. They will not scratch your windows. They are great for wiping away cleaner and polishing the glass. Another benefit of microfiber cloths is that they are reusable. You can wash them and use them again and again. This makes them a more environmentally friendly option than paper towels. When cleaning your windows, use a clean microfiber cloth for best results. You will be amazed at how well they work.
How to Use a Ladder Safely?
How do you use a ladder safely? Using a ladder can be dangerous if you are not careful. Always make sure the ladder is on a level surface. If the ground is uneven, the ladder could tip over. Have someone hold the ladder steady while you are climbing. This will help prevent it from moving. Do not climb too high on the ladder. You should always have at least three points of contact with the ladder. This means two feet and one hand, or two hands and one foot. Do not reach too far to the side. This could cause you to lose your balance. Wear shoes with good traction. This will help prevent you from slipping. If you are afraid of heights, do not use a ladder. Ask someone else to do the job for you. Safety should always be your top priority.
In summary, having the right tools like a good squeegee, microfiber cloths, a sturdy ladder, and a long-handled brush is essential for effective and safe window cleaning. These tools make the job easier, faster, and help you achieve streak-free, sparkling results.
Fun Fact or Stat: A squeegee was first patented in 1936. It has been a popular window cleaning tool ever since!

Preparing Your Windows for Cleaning
Before you start cleaning with windex for outdoor windows, you need to prepare. Remove any screens from the windows. This will make it easier to clean the glass. Use a brush to dust off the windows. This will get rid of loose dirt and debris. You can also use a hose to rinse the windows. This will help remove any stubborn dirt. Protect any plants or furniture near the windows. You do not want to get cleaner on them. Cover them with a cloth or plastic. Now you are ready to start cleaning with windex.
- Remove window screens for easier access.
- Dust off loose dirt and debris.
- Rinse windows with a hose to remove stubborn dirt.
- Protect nearby plants and furniture.
- Check the weather forecast before you start.
Preparing your windows properly will make the cleaning process much easier. If you skip this step, you might end up with streaks or dirt that is hard to remove. Removing the screens allows you to clean the entire window surface. Dusting or rinsing the windows gets rid of loose dirt. This prevents it from smearing when you apply the cleaner. Protecting your plants and furniture will save you from having to clean up a mess later. Checking the weather is also important. You should not clean your windows on a very hot day. The cleaner will dry too quickly and leave streaks.
Why Remove Window Screens?
Why should you remove window screens? Removing window screens makes it much easier to clean the entire window surface. Screens can trap dirt and debris. This can make it difficult to clean the glass underneath. When you remove the screens, you can clean them separately. You can use a brush or a hose to remove the dirt. This will ensure that your windows are completely clean. Removing the screens also allows you to inspect the window frame. You can check for any damage or rot. This will help you maintain your windows and keep them in good condition. It only takes a few minutes to remove the screens. But it will make a big difference in the cleanliness of your windows.
How to Protect Plants and Furniture?
How do you protect your plants and furniture? Cleaning windows can be messy. You do not want to get cleaner on your plants or furniture. The chemicals in the cleaner can damage them. To protect your plants, cover them with a cloth or plastic sheet. This will prevent the cleaner from getting on the leaves. For furniture, move it away from the windows. If you cannot move it, cover it with a cloth or plastic sheet. Be careful not to spill any cleaner on the floor. Wipe up any spills immediately. You can also use a drop cloth to protect the floor. Taking these precautions will help you avoid damaging your plants and furniture. It will also make the cleanup process easier.
Why Check the Weather Forecast?
Have you ever wondered why you should check the weather forecast before cleaning windows? The weather can have a big impact on how well your windows turn out. You should not clean your windows on a very hot day. The cleaner will dry too quickly and leave streaks. You should also avoid cleaning your windows on a windy day. The wind can blow dirt and debris onto the windows. This will make them dirty again. The best time to clean your windows is on a cloudy day. The sun will not be too strong, and the cleaner will not dry too quickly. You should also check the forecast for rain. You do not want to clean your windows right before it rains. The rain will wash away the cleaner and leave streaks. Checking the weather forecast will help you choose the best time to clean your windows.
In conclusion, preparing your windows by removing screens, dusting, rinsing, and protecting nearby items ensures a more effective and efficient cleaning process. Checking the weather forecast also helps you choose the best time to clean, avoiding conditions that can lead to streaks or re-soiling.
Fun Fact or Stat: The best time to clean windows is on a cloudy day with no direct sunlight. This prevents the cleaning solution from drying too quickly and causing streaks.

Applying Windex for Outdoor Windows
Now it’s time to apply the windex for outdoor windows. Spray the cleaner evenly on the glass. Make sure you cover the entire surface. Do not use too much cleaner. A thin, even coat is best. Let the cleaner sit for a few minutes. This will give it time to loosen the dirt and grime. Then, use your squeegee to remove the cleaner. Start at the top of the window and work your way down. Overlap each stroke slightly. Wipe the squeegee blade with a microfiber cloth after each stroke. This will prevent streaks. If you see any streaks, use a clean microfiber cloth to wipe them away. Your windows should now be clean and sparkling.
| Step | Action | Why |
|---|---|---|
| 1 | Spray cleaner evenly | Ensures entire surface is covered |
| 2 | Let cleaner sit | Loosens dirt and grime |
| 3 | Squeegee from top to bottom | Removes cleaner without streaks |
| 4 | Wipe squeegee blade | Prevents streaks |
| 5 | Wipe away streaks | Ensures clean, sparkling windows |
Applying the windex correctly is key to getting streak-free windows. If you use too much cleaner, it will be harder to remove. This can lead to streaks. Letting the cleaner sit for a few minutes allows it to work its magic. It will loosen the dirt and grime, making it easier to remove. Using a squeegee is the best way to remove the cleaner. Start at the top and work your way down. Overlap each stroke to ensure you do not miss any spots. Wipe the squeegee blade after each stroke to prevent streaks. If you still see streaks, do not worry. Just use a clean microfiber cloth to wipe them away.
How Much Windex Should I Use?
How much windex should you use? Using the right amount of cleaner is important. If you use too little, it will not be effective. If you use too much, it can leave streaks. The best approach is to use a thin, even coat. Spray the cleaner lightly on the glass. Make sure you cover the entire surface. You do not need to saturate the window. A light mist is enough. If you are using a concentrated cleaner, follow the instructions on the label. You may need to dilute it with water. Using too much cleaner can also be wasteful. You will end up using more product than you need. Start with a small amount and add more if necessary. With practice, you will learn how much cleaner to use for best results.
Why Let the Cleaner Sit?
Have you ever wondered why you should let the cleaner sit? Letting the cleaner sit for a few minutes allows it to work its magic. The cleaner contains chemicals that break down dirt and grime. These chemicals need time to penetrate the dirt. If you wipe the cleaner off immediately, it will not have time to work. Letting the cleaner sit for a few minutes will loosen the dirt. This will make it easier to remove with a squeegee. The amount of time you let the cleaner sit depends on how dirty your windows are. If your windows are very dirty, you may need to let the cleaner sit for longer. Always follow the instructions on the label. They will tell you how long to let the cleaner sit.
How to Avoid Streaks?
How can you avoid streaks when cleaning windows? Streaks can be frustrating. They can make your windows look dirty even after you clean them. There are several things you can do to avoid streaks. First, use the right amount of cleaner. Too much cleaner can leave streaks. Second, use a good squeegee. A high-quality squeegee will remove the cleaner evenly. Third, wipe the squeegee blade after each stroke. This will prevent dirt from being smeared across the window. Fourth, use a clean microfiber cloth to wipe away any streaks. Fifth, avoid cleaning your windows in direct sunlight. The sun can cause the cleaner to dry too quickly. This can lead to streaks. By following these tips, you can achieve streak-free windows.
In summary, applying windex for outdoor windows correctly involves using the right amount of cleaner, letting it sit for a few minutes to loosen dirt, and using a squeegee to remove the solution. Wiping the squeegee blade after each stroke and avoiding direct sunlight can help prevent streaks.
Fun Fact or Stat: Professional window cleaners often use a technique called “fanning” with the squeegee to cover large areas quickly and efficiently.
Cleaning Window Frames and Sills
Do not forget to clean the window frames and sills. These areas can get just as dirty as the glass. Use a brush or cloth to remove any dirt or debris. You can use a mild soap and water solution to clean the frames. For stubborn stains, try using a scrub brush. Be careful not to scratch the frames. Rinse the frames with clean water. Dry them with a clean cloth. Cleaning the frames and sills will make your windows look even better. It will also help protect them from damage. Clean frames add to the overall appearance.
- Use a brush to remove dirt from frames.
- Clean with mild soap and water.
- Use a scrub brush for tough stains.
- Rinse frames with clean water.
- Dry with a clean cloth.
- Inspect for damage or rot.
Cleaning the window frames and sills is an important step. It is often overlooked. But it can make a big difference in the overall appearance of your windows. Dirt and grime can build up on the frames over time. This can make your windows look old and dirty. Cleaning the frames will brighten them up. It will also help protect them from the elements. Use a brush to remove any loose dirt or debris. Then, use a mild soap and water solution to clean the frames. For stubborn stains, you can use a scrub brush. But be careful not to scratch the frames. Rinse the frames with clean water and dry them with a clean cloth.
What Kind of Soap Should I Use?
What kind of soap should you use to clean window frames? You should use a mild soap. Harsh chemicals can damage the frames. They can also strip the paint or finish. A mild dish soap is a good choice. You can also use a special cleaner made for window frames. Avoid using abrasive cleaners. These can scratch the frames. When cleaning the frames, use a soft cloth or sponge. Do not use a scrub brush unless you have stubborn stains. Always test the cleaner in a small area first. This will ensure that it does not damage the frames. Rinse the frames thoroughly with clean water. Dry them with a clean cloth. This will prevent water spots.
How to Remove Stubborn Stains?
How can you remove stubborn stains from window frames? Stubborn stains can be tough to remove. But there are several things you can try. First, try using a scrub brush. Scrub the stain gently with the brush. Be careful not to scratch the frames. If the stain is still there, try using a stronger cleaner. You can use a special cleaner made for window frames. Or you can try using a mixture of baking soda and water. Apply the cleaner to the stain and let it sit for a few minutes. Then, scrub the stain with a brush. Rinse the frames thoroughly with clean water. If the stain is still there, you may need to call a professional cleaner. They have special tools and cleaners that can remove even the toughest stains.
Why Inspect for Damage or Rot?
Have you ever wondered why you should inspect your window frames for damage or rot? Inspecting your window frames is an important part of window maintenance. Damage or rot can weaken the frames. This can make them less effective at keeping out the elements. It can also lead to more serious problems. For example, rot can spread to the walls of your house. This can be very expensive to repair. When you inspect your window frames, look for cracks, holes, and soft spots. These are signs of damage or rot. If you find any damage, you should repair it as soon as possible. You can use wood filler to fill in small cracks and holes. If the damage is more serious, you may need to replace the entire frame. Regular inspections will help you catch problems early and prevent them from getting worse.
In summary, cleaning window frames and sills involves removing dirt, washing with mild soap and water, using a scrub brush for tough stains, rinsing, and drying. Regular inspection for damage or rot is also essential for maintaining the integrity and appearance of your windows.
Fun Fact or Stat: Window frames made of wood should be inspected annually for rot and damage to ensure they remain structurally sound.
Maintaining Your Clean Outdoor Windows
To keep your outdoor windows clean, make a schedule. Clean them regularly. This will prevent dirt from building up. You can clean your windows every few months. Or you can clean them more often if they get dirty quickly. Use windex for outdoor windows to keep them sparkling. Check your windows regularly for any damage. Repair any cracks or holes. This will help protect them from the elements. Keeping your windows clean and well-maintained will make your home look its best. Clean windows let in more sunlight and improve your view.
- Create a regular cleaning schedule.
- Check for damage regularly.
- Repair cracks and holes promptly.
- Use windex for outdoor windows.
- Consider applying a water repellent.
- Wipe down windows after heavy rain.
Maintaining your clean outdoor windows is easier than you think. Once you have cleaned them, you can take steps to keep them looking good for longer. Create a cleaning schedule and stick to it. This will prevent dirt from building up. Check your windows regularly for any damage. Repair any cracks or holes promptly. This will prevent further damage. You can also consider applying a water repellent to your windows. This will help keep them clean and clear. Wipe down your windows after heavy rain to remove any water spots. With a little effort, you can keep your windows looking their best.
How Often Should I Clean My Windows?
How often should you clean your windows? The answer depends on several factors. If you live in a dusty area, you may need to clean your windows more often. If you have trees near your windows, they may get dirty from leaves and sap. If you have pets, they may scratch or smudge your windows. A good rule of thumb is to clean your windows every few months. This will prevent dirt from building up. You can also clean them more often if they get dirty quickly. For example, you may want to clean them after a heavy rain or a windstorm. Regular cleaning will keep your windows looking their best.
Why Repair Cracks and Holes Promptly?
Have you ever wondered why you should repair cracks and holes in your windows promptly? Cracks and holes can let in water and air. This can damage your windows and your home. Water can cause wood frames to rot. It can also cause mold to grow. Air can make your home colder in the winter and hotter in the summer. This can increase your energy bills. Repairing cracks and holes promptly will prevent these problems. You can use caulk or sealant to fill in small cracks and holes. For larger holes, you may need to replace the window. Repairing cracks and holes will also improve the appearance of your windows. It will make your home look more well-maintained.
What is a Water Repellent?
What is a water repellent, and how can it help your windows? A water repellent is a product that helps water bead up and roll off surfaces. It can be applied to your windows to help keep them clean. When it rains, the water will bead up and roll off the windows. This will prevent water spots from forming. Water repellents can also help protect your windows from dirt and grime. The dirt will not stick to the windows as easily. There are many different types of water repellents available. Some are sprays, while others are liquids that you apply with a cloth. Choose a water repellent that is designed for use on windows. Follow the instructions on the label carefully. Applying a water repellent can help keep your windows clean and clear for longer.
In summary, maintaining clean outdoor windows involves creating a cleaning schedule, checking for damage, repairing cracks promptly, using windex for outdoor windows, and considering a water repellent application. These steps help keep your windows sparkling and protect them from the elements.
Fun Fact or Stat: Applying a water repellent to your windows can reduce the frequency of cleaning by up to 50%!
Summary
Keeping your outdoor windows clean is important for a clear view and a beautiful home. Start by choosing the right windex for outdoor windows. Gather the tools you need, like a squeegee, microfiber cloths, and a ladder. Prepare your windows by removing screens and dusting them off. Apply the cleaner evenly and let it sit for a few minutes. Use the squeegee to remove the cleaner, wiping the blade after each stroke. Clean the window frames and sills with soap and water. Finally, maintain your clean windows by cleaning them regularly and repairing any damage. With a little effort, you can enjoy sparkling clean windows all year long.
Conclusion
Cleaning your outdoor windows does not have to be a chore. With the right tools and techniques, it can be a simple and rewarding task. Choose the right windex for outdoor windows. Follow the steps outlined in this article. You will be able to achieve streak-free, sparkling windows. Clean windows will let in more light and improve your view. They will also make your home look its best. So, grab your supplies and get ready to make your windows shine!
Frequently Asked Questions
Question No 1: What is the best way to clean high outdoor windows?
Answer: Cleaning high outdoor windows can be tricky, but it’s definitely doable. First, get yourself a good, sturdy ladder and make sure it’s placed on a level surface. Safety first! You can also use an extension pole with a squeegee or a microfiber cloth attached. Spray the window with windex for outdoor windows, then use the squeegee or cloth to wipe it clean. Overlap your strokes to avoid streaks. If you’re not comfortable using a ladder, consider hiring a professional window cleaner. They have the right equipment and experience to get the job done safely and effectively.
Question No 2: Can I use vinegar to clean my outdoor windows?
Answer: Yes, you can use vinegar to clean your outdoor windows! Vinegar is a natural cleaner that is effective and safe for the environment. Mix equal parts of white vinegar and water in a spray bottle. Spray the mixture on your windows and let it sit for a few minutes. Then, wipe the windows clean with a squeegee or a microfiber cloth. Vinegar can help remove dirt, grime, and hard water stains. It is also a great option for people who are sensitive to chemicals. However, some people do not like the smell of vinegar. You can add a few drops of essential oil to the mixture to make it smell better.
Question No 3: How do I prevent streaks when cleaning my windows?
Answer: Streaks can be frustrating, but there are several things you can do to prevent them. First, use a good quality squeegee and make sure the blade is clean and in good condition. Overlap your strokes when using the squeegee. Wipe the blade after each stroke to remove any dirt or cleaner. Use a clean microfiber cloth to wipe away any streaks that remain. Avoid cleaning your windows in direct sunlight. The sun can cause the cleaner to dry too quickly, which can lead to streaks. Using the right amount of windex for outdoor windows is also important; too much can leave streaks.
Question No 4: What should I do if my windows have hard water stains?
Answer: Hard water stains can be difficult to remove, but there are several things you can try. First, try using a mixture of white vinegar and water. Spray the mixture on the stains and let it sit for a few minutes. Then, scrub the stains with a brush or sponge. You can also try using a commercial hard water stain remover. Follow the instructions on the label carefully. For stubborn stains, you may need to repeat the process several times. You can also try using a razor blade scraper to gently scrape off the stains. Be careful not to scratch the glass. After removing the stains, clean your windows with windex to make them shine.
Question No 5: Is it safe to use Windex on tinted windows?
Answer: Whether it’s safe to use Windex on tinted windows depends on the type of tint. Some window tints are applied as a film, and harsh chemicals like ammonia (which is in some Windex formulas) can damage or discolor the film over time. It’s best to check with the window tint manufacturer or installer to see what they recommend. If you’re unsure, you can use a non-ammonia based cleaner, or a gentle solution of soap and water. Always test a small, inconspicuous area first to make sure it doesn’t cause any damage.
Question No 6: How do I clean my windows in cold weather?
Answer: Cleaning windows in cold weather can be challenging, but it is possible. Add some rubbing alcohol to your cleaning solution. This will help prevent the water from freezing on the windows. Choose a day when the temperature is above freezing. Avoid cleaning your windows on very cold or windy days. Use warm water instead of cold water. This will help the cleaner work better. Wipe the windows dry quickly after cleaning them. This will prevent ice from forming. If you are using a squeegee, be careful not to scratch the glass. The cold weather can make the glass more brittle. Using windex for outdoor windows that is specifically formulated for cold weather can also help.