How To Pressure Wash A Roof?

How To Pressure Wash A Roof

You want your roof to be clean and new, but you don’t know how to do it? You’re not alone. Pressure washing is one of the best ways to clean a dirty house, but if you’re doing it for the first time, there are some things that might help! From setting up your machine in just the right spot, to what materials you’ll need-everything from water and soap to gloves and goggles just in case things get too messy!

This post will show you everything about pressure washing so that when it comes time for cleaning day on the roof, all you have to do is read this blog post over again. And then enjoy your newly cleaned home.

How To Pressure Wash A Roof?

Pressure washing a roof is not an easy task. You need to know when and where to set up your machine, what materials you’ll need-everything from water and soap, to gloves and goggles just in case things get too messy!

We have the solution for you! This article will give you all the information you need on how to pressure wash a roof so that it’s clean, safe, and looking new again. It also includes some helpful tips on how to avoid common mistakes like overspray or getting caught in wet weather while working on your house.

Step 1: Test your pressure washer to make sure it works

If you have a pressure washer, then get out there and test it to make sure that the machine is actually working.

Step 2: Turn off power to water source

Before you start, turn off the power to your water source. This will reduce the number of tripped breakers in your house. And it’ll help keep you from getting shocked.

Step 3: Cover or move all outdoor furniture, plants, or anything else that might get spray on it

Cover any furniture, plants, or other items that are outside, preferably with tarps or something else where they can’t get wet. Or move them somewhere out of reach if necessary.

Step 4: Pressure wash from the bottom up, not top down

First start by pressure washing your deck. As always, you should begin at the bottom and work your way up-pressure washers shoot water out very powerfully so it’s best to keep furniture and other items out of direct line of fire.

After that, move on to the side of your house. Again, begin at the bottom and work your way up.

Finally, do the ‘trunk’ or roof line of your home. Again beginning at the bottom and working your way up.

Step 5: Clean gutters (if possible)

Cleaning gutters is a little bit trickier since you’ll need to be up on a ladder. But if you can clean those at the same time as your roof without too much trouble, go for it!

Step 6: Rinse and enjoy!

After all that work your roof will look like new again! You can step back and admire your work before cleaning up and turning power back on.

Is it OK to pressure wash a roof?

Yes, pressure washing a roof is possible and can be done safely. Roofs are usually made of aluminum and copper and the texture will not be harmed by mild pressure water.

Pressure washed roofs should also never be power-washed and should always be done with a low-pressure nozzle for those that use low-pressure machines.

Does pressure washing a roof cause damage?

Many people are wondering if pressure washing a roof can cause damage. The answer is not always, but there is a chance that the surface of your roof might be damaged. The likelihood of it happening depends on the pressure you use and how well you rinse to avoid water spots.

It’s important to protect any starter shingles and get permits before doing anything like this. If you don’t, then there’s a high chance that you’ll get fined for damages afterwords.

There are many reasons people might want to pressure wash their roofs and decks: to remove mildew and other stains, maintain wood surfaces, remove graffiti, and to help keep surfaces free of hard-water build-up or other buildup from materials such as algae.

As you might have guessed, there are a few steps to properly pressure washing your roof and avoiding damage.

When would you want to pressure wash a roof?

Pressure washing a roof is not something that should be done on a whim or in the spur of the moment. It is a task that requires planning and preparation. You should definitely find someone to help you if this is your first time pressure washing a roof, as it can be dangerous and at the very least requires some of your own safety equipment such as gloves and goggles which you might not otherwise use.

When would be the best time of year to wash a roof?

There’s no one perfect time to wash a roof other than maybe winter, when the weather is cold and you probably don’t want to be standing on your wet roofs anyway. If you live in a warm climate like Florida or Southern California, then washing your roof whenever it seems dirty (which might be every few months) should suffice.

Do I need any special equipment?

Of course! You’re pressure washing a roof, after all. Do not try to do this job with just your garden hose or anything less than an industrial-strength power washer that can shoot 1800 psi water at the surface you are cleaning – this kind of equipment is safe for roofs and decks because it sprays instead of blasting.

You’ll also want a good soap for your roof with a degreaser to prevent mold from returning. For those difficult stains, you might have to use an acid-based product as well – just be sure that it will not harm the surface you are cleaning.

What about pressure washer safety?

When working high above the ground atop a ladder or with a power washer, it is important to pay attention to safety. Always be sure you are properly secured on your roof, deck or high surface and that you know where you are walking. Keep people away from the area as well so they don’t wonder into the path of flying water.

Is there anything else I should know?

Yes! You should know that pressure washers can be loud and will produce a small amount of water mist. When you’re finished, it’s important to rinse the entire surface with clean water until there is no soap left on it; this is where a wet/dry shop vacuum might come in handy as well if you don’t want to stand around with a hose. You also don’t want to direct your pressure washer toward landscaping as this could cause damage to the plants and roots, either from the water itself or from lower oxygen levels due to soil saturation after washing.

In general, you should only pressure wash a roof when you see that it needs cleaning and avoid doing it if you only see the water beading up on your roof, which means that it is clean already.

Before you start pressure washing a roof, make sure you know how to use the equipment properly and are in good physical condition – this may include having someone with you in case of falls or problems. Never try to do anything high-risk when working with a power washer.

After you are finished, make sure to be thorough with rinsing your roof, removing any soap residue that might cause future problems or damage. With this simple task, you can make your house look brand new again!

How To Pressure Wash A Roof

Tips on how to pressure wash a roof

  • Avoid working when it’s wet outside, not just for you but for your roof too!
  • Use a converter to hook up your pressure washer to a water hose if possible. The converter will give you much more control over the power of the water coming out.
  • Wear protective equipment such as glasses and gloves while working on your home, just in case!
  • Protect your landscaping and house from the water spray. You don’t want to have a bunch of overspray going everywhere.

You’re done! Now that you know how to pressure wash a roof, you can have your own clean home again in less time than it takes for new tar to dry!


This article gives you all the information you need on how to easily and safely pressure wash your roof. It includes helpful tips on avoiding common mistakes like overspray or wet weather and also tells you when and where to set up your machine, what materials you’ll need (like water and soap), and more.

References : Should I Pressure Wash My Roof?

Noah Burns

I am Noah Burns- The Guy behind I will Make You Smart. I love to experiment and test new products with an aim to create informative contents for readers like you. It is my aim to make this site a leading source of information and reviews to help consumers make more informed buying decisions.

Recent Posts