Mould on outdoor blinds is not only untidy but can also rapidly stain and damage your fabrics if left unchecked. As someone who has worked with outdoor blinds across WA for a long time, I have noticed how easy it is to get mould when one does not take all the necessary measures.
In Western Australia, most houses use awnings, like folding arm awnings, and outdoor blinds to reduce heat and for sun protection.
They require routine maintenance, just like any other home furnishings, to stay functional and good-looking. By using appropriate care and cleaning methods, you can extend the life of your blinds, save on expensive replacements, and keep them in good condition for their full lifespan.
This guide will contain tips on how to clean mould off outdoor blinds and ensure they still look great after installation.

What Causes Mould on Outdoor Blinds?
Although outdoor blinds, especially mesh fabrics like Vistaweave, are extremely important for protecting against the elements, it’s this exposure that makes them very susceptible to mould growth.
This often leads people to wonder whether outdoor blinds are waterproof, but even water-resistant fabrics can trap moisture if not dried and maintained correctly.
Mould is a sad thing on the outside blinds, but there are numerous ways to keep it off in the first place.
Here are potential causes why mould is growing on your outdoor blinds :
Exposure to Moisture, Humidity, Rain, and Shaded Areas
Mould loves damp environments. Humidity levels above 70% makes it a perfect home for mould. Outdoor blinds are constantly exposed to moisture, humidity, and rain, and if they are in a shaded area, they dry much more slowly. Such an environment is ideal for mould to settle, develop, and propagate.
Build-Up of Dirt and Organic Material
The mould might result from dust, pollen, and other debris that accumulate over time. They mix with moisture and provide food for mould. Even the smallest dust that sticks to the blinds can collect water and provide a haven for mould unless they are washed periodically.
Poor Airflow or Infrequent Cleaning Habits
Whenever blinds are wet, it creates a surrounding in which moulds can thrive. This is particularly true when your outdoor area lacks airflow, which can make your space feel sticky. The lack of cleaning also creates spaces where dirt and moisture can accumulate.
Why It’s Essential to Keep Your Outdoor Blinds Clean
Australian outdoor fabrics are designed to withstand some of the most demanding weather conditions the world has to offer, yet they still require regular treatment to remain at their best.
If you do not know how to clean outdoor blinds, then you are not alone. The thing is, it is easy to take care of them once the correct strategy is applied. They can be kept in wonderful condition for many years to come.
It is also much cheaper to keep your blinds in good condition than to repair or replace them later. Knowing how to get mould off fabric blinds and to maintain them in the right way saves money and stress.
So, here are some tips to help you clean mould off outdoor blinds and ensure your much-needed sun-shading screens are in the best condition!

Our Top Tips on How To Clean Outdoor Blinds
Outdoor blinds can easily have mould, particularly when dust, dirt or moisture has been allowed to accumulate. Spores do not take long to settle and propagate, which is why it is important to know how to clean mould off outdoor blinds.
Before you begin, consider the material you are working on. The process of cleaning outdoor blinds will be different depending on whether the blinds are made of fabric, PVC, canvas, or some other material.
This is because knowing which type of blind you have and how to handle each cleaning process will make the entire process smoother.
Learn How to Clean Outdoor Blinds Properly
When cleaning outdoor blinds, especially on-screen mesh types, it is always best to be gentle. Use a soft-bristle brush or a microfibre cloth, and rub it in circles on the fabric in a slow, steady motion.
This step will not require any detergent; only the brush or cloth is needed. After loosening, run the blinds under some cold water. A low-pressure, consistent spray will flush debris caught in the mesh weave without damaging the material.
On canvas blinds or awnings, use cold water to remove all water-based stains. Should they leave any stains, wash the fabric in warm water with a gentle, fragrance-free detergent, then rinse under clean water.
Bonus tip: It is common for people to ask whether they should remove their blinds before cleaning them. The great news is you don’t! Just leave them there, and just have a good stepladder to reach any higher point.
Know Your Stains – and Ways to Prevent Them
Due to their outdoor placement, blinds and awnings are in a constant state of exposure to various kinds of dirt, and these include:
- Bird droppings
- Soil and mud
- Sand
- Leaves and vegetation
- Food spills
Any of them can easily cause stains. The best solution is to act as soon as possible before the marks become permanent, and to avoid any trouble ahead.
Avoid Using the Wrong Cleaning Products
With numerous cleaning products on the market, it can be tempting to use whatever you have at home. But here’s the golden rule: do not do it!
Detergents, household cleaners, and insect sprays, which are mostly used indoors, cannot be applied to outdoor fabrics. These are materials that are usually treated to be UV- and weathering-resistant. Applying an inappropriate product to the item might damage the fabric’s covering.
Instead, use warm water as a general cleaning agent. Use a cleaning solution specifically developed to be highly effective on heavy-duty exterior fabrics used in awnings and blinds, to be on the safe side.
Use Proper Drying Procedures on Blinds and Awnings
After cleaning outdoor blinds, don’t forget one last thing: always allow the cloth to dry completely before you roll it up.
It may be a given fact; however, many individuals who looked up how to clean mould off outdoor blinds found that the mould had returned because the blinds were already covered, even though they were still wet. The dampness found in rolled-up blinds is where mould on blinds thrives.
Once you have removed stains and used the right method to get mould off fabric blinds, leave the blinds completely open until the material is completely dry. This normally takes little time on a hot day in Australia.
Preventing Mould and Mildew on Blinds and Awnings
Mildew is a widespread problem for outdoor blinds and awnings. It may grow very quickly and, if left unchecked, destroy the cloth.
The best strategy for dealing with both mould and mildew is prevention. A simple routine can save you down the track:
- Gently brush dirt and debris off the fabric regularly
- Rinse the blinds with cold water to remove dust and organic buildup
- Always ensure the fabric dries completely before rolling it away
Even with your best efforts, mildew may still develop, particularly in damp/shady spots. Should it happen, do not panic. Outdoor blinds can be effectively cleaned, and effective cleaning methods can be used to restore your blinds before it is too late.
How to Clean Mould Off Outdoor Blinds
Mould and mildew can wreak havoc on outdoor fabrics, and once you spot them, you’ll naturally want to remove them right away. However, it’s crucial to treat them correctly.
To safely treat mildew or mould, follow these steps:
- Choose a specialist mildew remover designed for outdoor fabrics.
- Wet the blind thoroughly with water until the fabric is fully soaked.
- Apply the mildew remover, gently scrubbing the stained spots with a soft cleaning brush. This is a safe method for anyone researching how to get mould off outdoor blinds.
- Rinse off the solution using a standard garden hose—never a high-pressure hose, as it can damage the fabric.
- Let the blinds dry completely in the sun before rolling them away.
Implement a Regular Outdoor Fabric Cleaning Strategy
Although it is a good idea to clean outdoor fabrics as soon as you notice any spots or mould, it’s better to set a rule to have them cleaned every month.
In addition to monthly care, arrange a more thorough cleaning every couple of years. This is more than spot cleaning; it aims to refresh the material. Regular maintenance and deep cleaning will keep mould off the blinds and help maintain the fabric’s strength and appearance.
How To Keep Your Blinds Looking Pristine All Year Round
Outdoor blinds are not cheap, so they need proper care to keep them looking beautiful. One of the major aspects of keeping outdoor blinds clean is knowing how to do it, as this can extend their lifespan and keep them looking good.
To make the most of your blinds’ resistance to mould and the elements, use durable, low-maintenance outdoor fabrics. Good-quality materials will make cleaning outdoor blinds easy and minimise the risk of damage from daily wear and tear.
Our experience at Outdoor Shades WA has taught us what it takes to offer sun protection solutions that withstand the rough Australian weather, require minimal maintenance, and remain aesthetically appealing for the next few years.

When to Avoid DIY Cleaning
While learning how to clean mould off outdoor blinds can help you keep up with routine maintenance, there are times when it is best to leave it to the experts. Trying DIY in the wrong scenario may ruin your blinds, break warranties and even be unsafe. Here’s when to reconsider cleaning them yourself:
Severe Mould Infestation
If the mould on the blinds is widespread or deeply rooted, it might not be sufficient to handle it yourself. Severe cases usually require specialised treatment to prevent permanent staining or structural damage. Once conventional methods for removing mould from roller blinds fail, it is time to bring in the professionals.
Permanent Stains or Deteriorating Material
Blinds that are cracked, brittle, discoloured, or have evidence of weakening should not be scrubbed or soaked. Cleaning outdoor blinds in this condition may worsen the damage.
Motorised Blinds with Electrical Components
When you are wondering how to clean outdoor blinds that are motorised, be careful. Electrical systems cannot blend with water. Any home cleaning, particularly that which requires soaking, hose-downs, or liquid treatment of moulds, may be hazardous and expensive to repair. A professional will know how to clean mould off outdoor blinds with motors without damaging them.
When Blinds Are Under Warranty with Strict Cleaning Rules
Some manufacturers come with instructions on how to get mould off blinds using only recommended products or procedures, especially for outdoor blinds brands like Ziptrak. Every warranty can be disqualified by using an incorrect cleaner or method. You should always consult the guidelines for removing mould from fabric, PVC, and roller blinds before attempting to remove it yourself.
How to Prevent Mould from Returning
After learning how to clean mould off outdoor blinds, the next step is to prevent its recurrence. Mould grows best in damp, dirty and poorly ventilated places, and therefore, a few simple habits can go a long way. This is one way of making your outdoor blinds last longer.
Clean Blinds Regularly
One of the best ways to prevent mould growth is to establish a monthly or seasonal ritual. Regular cleaning of outdoor blinds removes dirt, pollen, and other organic matter that mould thrives on. Being consistent makes it less likely that you have to constantly seek how to get mould off blinds in future.
Ensure Blinds Stay Dry Before Rolling Them Up
The first cause of mould on blinds is moisture. When cleaning or after a rain, blinds should always be left to dry first before they are rolled or folded.
Improve Airflow Around Outdoor Areas
The Canadian Conservation Institute notes that mould on textiles thrives when relative humidity (RH) is between 65–100% and when there’s poor air circulation.
Decent airflow will speed up the drying of outdoor blinds and also minimise the damp conditions that mould thrives in. Open your patio, deck, or alfresco area, where possible, and avoid congesting the space with large pieces of furniture that block airflow.
Use a Protective Waterproofing Spray (If Recommended)
A manufacturer-approved waterproofing or mould-resistant spray can be applied to some of the blinds, particularly fabric ones. These products cannot be used with all materials, so the first step is to check the label. The right spray will save the time and effort spent on deep cleanings.
Ensure They Remain Fixed and Smooth for a Long Time
Outdoor fabrics can accumulate dirt, marks, and mould because they are constantly exposed to the elements. Nevertheless, these problems can be avoided through early intervention.
When deciding on outdoor blinds, one should consider a high-quality, durable system that delivers the necessary shade and withstands the extremely fierce weather conditions in WA.
At Outdoor Shades WA, we not only provide blinds, but we do so professionally. We install outdoor blinds most appropriately, ensuring they remain fixed and smooth for a very long time.
Contact us to learn more about our range of outdoor blinds products and expert installation services.