Is your roof looking grimy with moss and algae? I know it’s tempting to grab a pressure washer for a quick fix, but using a pressure washer on your roof can cause serious damage, especially to shingle roofs. The high-pressure water can strip away protective granules, cause leaks, and even void your warranty! This could lead to expensive repairs and a shorter lifespan for your roof. But don’t worry, there’s a much safer way to get your roof looking like new! Soft washing, which uses gentle cleaning solutions, is the answer. It effectively removes dirt and grime without harming your roof. I’ve got a ton of info on this, so if you’re thinking about roof cleaning, keep reading to learn about the safest methods, roof types, and how to choose the right option for your home!.
The Sneaky Dangers of Pressure Washing Roofs
I know it might seem like a great idea to blast away all that gunk with a powerful stream of water, but when it comes to roofs, pressure washing can actually cause a lot of problems, especially on some types of roofs!
- If you have a roof made of asphalt shingles, you need to be very careful. Pressure washing can knock off all those tiny protective pieces called granules. When those granules are gone, your roof is in big trouble! It can start to break down way faster, and you might need to replace it sooner than you think.
- Water damage is also a big concern. You see, pressure washers shoot water with a lot of force, and this can push water into tiny cracks and holes in your roof. This can lead to leaks and nasty water damage inside your home!
- Did you know that pressure washing can even void your roof’s warranty? It’s true! If a company sees that you used a pressure washer on your roof, they might not pay for any repairs if something goes wrong.
- Also, water under high pressure can damage other stuff on your roof, like skylights, vents, or solar panels. The seals that keep these things waterproof can break and lead to leaks.
- If you have tile roofs, pressure washing can damage the tiles, causing them to crack or break.
- Finally, it’s not very safe to walk on a wet roof. It can be super slippery, and you might fall and hurt yourself. And if you’re trying to handle a pressure washer at the same time, it’s even more risky! Plus, water can get into electrical wires on the outside of your home, and that’s very dangerous.
Roof Types: Which Can Handle the Pressure?
So, you’re probably wondering, which roofs can handle pressure washing? Well, it turns out, there aren’t many. The most common types of roofs that can withstand pressure washing are:
- Metal roofs
- Concrete roofs
But for other roof types, I’d stay away from pressure washers:
- Tile roofs are tricky. Some people say it’s okay to use low pressure, but other sources say high pressure can crack or break the tiles.
- Newer cedar shake shingles can sometimes handle a light pressure wash if it’s followed up by an oil treatment, but it is important to be careful.
- Asphalt shingles should NEVER be pressure washed.
- Cedar shingles are also too fragile for pressure washing.
Soft Washing: The Gentle Way to Clean
If pressure washing is so risky, what should you do? Well, there’s this great method called soft washing! Soft washing is a safe way to clean your roof using low pressure and special cleaning detergents.
- Instead of using forceful water, soft washing uses special chemicals that kill mold, mildew, and algae. These chemicals are also really good at loosening dirt and grime.
- The cool thing is, after the cleaning, soft washing leaves behind a special layer that helps stop new yucky stuff from growing back.
- Soft washing is a much gentler process, so it won’t damage your roof. It can be used on almost any type of roof, from asphalt to metal.
- Professionals usually use a special pump to apply the cleaning mixture.
- Soft washing does a great job of removing the grime and algae, but sometimes it can take a few months to completely remove stubborn moss.
Other Ways to Clean a Roof
There are a few other methods for roof cleaning, too. Let’s check them out:
- Chemical Cleaning: This method uses chemicals to break down dirt and algae. It can make your roof look shiny and new again. It’s a fast process, but be aware that it may not be suitable for very steep roofs.
- Manual Cleaning: This is when you use brushes and tools to scrub the roof by hand. This should really be done by experts, so you don’t accidentally damage your roof.
- Combination Methods: Sometimes, experts might use a little bit of pressure washing in certain areas and then follow up with soft washing.
Should You Clean Your Own Roof? Or Call a Pro?
Okay, so now you know that pressure washing isn’t always the best idea. But what about cleaning your roof yourself? Well, I recommend that you should leave it to the pros. It can be very risky for a few reasons:
- Cleaning a roof yourself can be dangerous if you don’t know what you’re doing. You could fall off or hurt yourself!
- It’s also easy to cause serious damage to your roof or electrical system if you don’t know how to clean it the right way.
Here are some great reasons to call in a professional roof cleaning service:
- Professionals know how to clean all sorts of different roofs without causing any damage. They have the right tools and know the best way to use them.
- They know exactly how much pressure to use and which chemicals are safe.
- A professional can also spot any problems with your roof that you might not notice. They can also extend the life of your roof.
- The cost of a professional roof cleaning varies from $150 to $1,000 depending on the size and how dirty it is.
Extra Things to Keep in Mind
Here are a few extra tips for keeping your roof clean:
- If you see a lot of moss growing on your roof, it could mean there’s too much moisture. It might even be time to get a new roof!
- Remember, regular roof cleaning is super important for making your roof last.
- You could use copper strips near the top of your roof; the minerals will help to prevent future moss and algae growth.
- After cleaning your roof, ask your roof cleaner about using a biocide treatment to prevent regrowth.
- The best time to clean a roof is when it can stay dry for a few days afterwards.
Keeping Your Roof Clean and Safe
So, there you have it! Pressure washing is definitely not safe for all roofs, especially asphalt and cedar shingles. Soft washing is a much safer way to go for most roof types. It’s important to choose a method that works for your roof and your needs. And remember, it’s always a great idea to talk to a professional roof cleaner to make sure your roof is getting the best treatment possible! After all, a clean roof is a happy roof, and a happy roof means a happy home!
Tampa Roof Cleaning – Peerless Pressure Washing Inc
Is your Tampa roof plagued by unsightly moss and algae? Don’t risk damaging your roof with a pressure washer! Peerless Pressure Washing Inc offers a safe and effective alternative: soft washing. We understand that high pressure can strip away protective granules from asphalt shingles, cause leaks, and void warranties. Our specialized soft wash technique uses low-pressure and eco-friendly solutions to gently eliminate organic growth, leaving your roof clean without the risk of damage. Unlike pressure washing that only removes surface growth, soft washing kills the roots, providing a longer-lasting clean. While it may take a few weeks to see full results, a biocide treatment extends the life of the cleaning. Contact Peerless Pressure Washing Inc at (813) 230-5915 for a free quote and let us protect your roof! We’ll assess your roof’s needs and offer the best solution to keep it looking its best.
Frequently Asked Questions: Roof Cleaning and Pressure Washing
Can I use a pressure washer if I am very careful and use a low-pressure setting?
While some professionals suggest that using a very low-pressure setting might be safe on certain roof types, it’s generally not recommended for most roofs, especially asphalt shingles. Even with low pressure, there’s a risk of damaging the granules on asphalt shingles or forcing water under the tiles, which could lead to leaks. The risk outweighs the benefits for most homeowners. Soft washing is usually a better option.
How do I know if my roof is too old for any type of cleaning?
If your shingles are old, they may not hold up well to pressure washing. Also, if there is a lot of moss or algae growth, it may indicate that there is trapped moisture and that your roof may be nearing the end of its lifespan. It is best to have your roof inspected by a professional before any cleaning to determine if it is structurally sound enough for the process. Additionally, if your roof is already showing signs of damage, like missing or cracked shingles, it may be best to avoid cleaning it with any method other than possibly by hand with soft brushes.
How long does it take for soft washing to fully clean a roof?
Soft washing may not provide instant results like pressure washing. It can take anywhere from a few weeks to 3-6 months for the roof to be completely clean. The cleaning solution works to kill the moss and algae, and then rain will help wash away the residue. Sometimes, professionals will do a light rinse or brushing a week or two after application to remove the dead moss and debris. Some companies also offer a reapplication or rinse if the initial cleaning does not fully remove all the growth.
What type of cleaning solutions are used in soft washing, and are they harmful to my plants or pets?
Soft washing solutions typically contain sodium hypochlorite (bleach), water, and a surfactant. While effective, these chemicals can potentially harm plants and water systems if not managed correctly. However, there are eco-friendly, biodegradable options that are safer for the environment. Professional roof cleaners should take precautions to protect your landscaping and offer safer chemical options. It is important to also bag any downspouts to prevent the runoff from getting into water systems.
What is a biocide treatment, and is it really necessary?
A biocide treatment is a chemical application after the cleaning to prevent organic growth like moss and algae from returning too quickly. It is an important step to prolong the cleanliness of your roof and protect it from future damage. It’s usually applied every 3 to 4 years, but the frequency depends on your environment and other factors. It is often an optional service, so be sure to inquire about it when getting a quote.
Can I use a garden hose with a spray nozzle to clean my roof?
While a garden hose can help with rinsing or removing loose debris, it’s not effective enough for a thorough roof cleaning. It lacks the pressure needed to remove stubborn moss and algae. Plus, it does not kill the growth at its roots like a chemical cleaning will. If you attempt to use a garden hose, you still might need to use a cleaning solution with a pump sprayer.
If I hire a professional, how can I tell if they are qualified for roof cleaning?
When choosing a professional roof cleaner, look for someone who clearly explains their methods, emphasizes safety, and avoids high-pressure washing on delicate materials like asphalt shingles. They should also use environmentally safe chemicals, have a good reputation with customer testimonials, offer free quotes, and be able to evaluate the specific needs and condition of your roof. It’s also helpful if they can identify potential issues with your roof before beginning work.
