An awning is one of the most practical additions to a UK garden, patio, balcony, caravan or shopfront. It provides shade on sunny days, creates a more comfortable outdoor space and helps protect furniture, doors and windows from light rain. However, most awnings are not designed to withstand constant heavy rain without maintenance. Over time, the fabric can lose its original water repellent finish due to UV exposure, wind, dirt, pollution, mould, folding and general weathering.
When an awning starts absorbing water, the fabric can become stained, heavy, slow to dry and more vulnerable to mould and mildew. The good news is that you can restore and improve the water repellent performance of suitable awning fabric with the right cleaning and coating system.
At Nanocoating.co.uk, we sell specialist fabric cleaning and protection products for awnings, parasols, outdoor covers, caravan awnings and other textile surfaces:
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NC Nano Fabric Cleaner for cleaning awning fabric before treatment
- NC Nano Coating for Fabric, Leather & Suede for making suitable fabric water, dirt and stain resistant
Together, these products provide a practical system for awning waterproofing, outdoor fabric protection, caravan awning waterproofing fabric care and long lasting rain resistance.
Quick overview and answer
If you are asking Can you waterproof an awning?, yes, you can make suitable awning fabric water repellent again by cleaning it with NC Nano Fabric Cleaner, allowing it to dry fully and then applying NC Nano Coating for Fabric, Leather & Suede. The coating helps rainwater bead on the surface instead of soaking into the fibres.
If you are asking How to waterproof a fabric awning?, the best method is to clean the fabric, dry it completely, test the coating on a hidden area and spray NC Nano Coating for Fabric, Leather & Suede evenly across the canopy, with extra attention to seams, edges and high exposure areas.
If you are asking What is the best waterproof fabric for awnings?, high quality acrylic, polyester and solution dyed outdoor fabrics are commonly used because they resist UV, weathering and moisture better than untreated natural fabrics. However, even good awning fabrics benefit from periodic cleaning and reproofing.
If you are looking for the Best awning waterproof spray, NC Nano Coating for Fabric, Leather & Suede is a strong choice for suitable fabrics because it creates breathable, invisible water and dirt repellent protection without changing the look or feel of the material when applied correctly.
Why awning waterproofing matters
Awnings, canopies and sunshades are constantly exposed to outdoor conditions. Even if your awning is mainly used for shade, it will still encounter rain, dew, wind, dust, pollen, bird droppings, air pollution and UV light.
Over time, this exposure can weaken the fabric’s original protective finish. Once the surface no longer repels water, rain can soak into the fibres instead of rolling away.
This can cause:
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Dark damp patches
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Mould and mildew growth
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Green algae deposits
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Staining from dirt and pollution
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Musty odours
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Fabric discolouration
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Longer drying times
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Weakened fibres
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Reduced fabric lifespan
- More difficult cleaning
Waterproofing an awning helps restore rain resistance and makes the fabric easier to keep clean throughout the season. Want to learn more? Read our in-depth guide about water and stain repellent spray for fabric.
Water repellent versus waterproof awnings
The terms waterproof and water repellent are often used together, but there is an important difference.
- Water repellent means the fabric pushes water away. Droplets bead on the surface and roll off more easily. The material can still breathe, which helps reduce trapped moisture and mould risk.
- Water resistant means the fabric can resist water to a certain level but may eventually absorb moisture during prolonged rain or pressure.
- Waterproof means water cannot pass through the material under specific conditions. This usually requires specialist coatings, laminates or sealed construction.
For most awning fabrics, breathable water repellency is the best goal. A heavy sealed layer can trap moisture, affect flexibility and encourage condensation or mould.
NC Nano Coating for Fabric, Leather & Suede is designed to make suitable awning fabrics water repellent and dirt repellent while preserving the fabric’s appearance and flexibility.
What Nanocoating.co.uk sells
Nanocoating.co.uk supplies specialist nano coatings and cleaners for fabric, leather, suede and other surfaces. For awning protection, the recommended system is NC Nano Fabric Cleaner followed by NC Nano Coating for Fabric, Leather & Suede.
NC Nano Fabric Cleaner is used before waterproofing. It helps remove dirt, algae, pollen, bird droppings, grease, stains and surface contamination. A clean surface is essential because protective coatings work best on clean, dry fibres.
NC Nano Coating for Fabric, Leather & Suede is applied after cleaning and drying. It creates an invisible water and stain repellent treatment that helps protect the fabric against rain, dirt and outdoor contamination.
This system helps with:
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Awning waterproofing
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Awning fabric protection
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Caravan awning waterproofing fabric maintenance
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Patio canopy protection
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Shop awning cleaning and coating
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Outdoor textile water repellency
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Dirt and stain resistance
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Mould and mildew prevention support
- Easier seasonal cleaning
Who is this solution for?
This awning protection system is suitable for anyone who wants outdoor fabric to stay cleaner, drier and longer lasting.
It is ideal for:
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Homeowners with patio awnings
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Garden and balcony owners
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Caravan and motorhome owners
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Restaurants, cafés and pubs with outdoor canopies
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Hotels and holiday lets
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Shopfront awning owners
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Event venues with fabric covers
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Facilities managers maintaining outdoor textile surfaces
- Anyone searching for the Best awning waterproof spray
It is especially useful before the outdoor season, after deep cleaning or when water no longer beads on the fabric.
Which awning materials can be treated?
NC Nano Coating for Fabric, Leather & Suede can be used on many suitable outdoor textiles. Always test first on a small hidden area, especially on coloured, coated, delicate or older materials.
Suitable awning fabrics may include:
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Acrylic awning fabric
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Polyester awning fabric
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Canvas awnings
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Cotton blend canopies
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Solution dyed outdoor textiles
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Caravan awnings
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Patio awnings
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Balcony awnings
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Pergola covers
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Shopfront awnings
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Fabric sunshades
- Outdoor textile covers
Some awnings already have a factory coating, PVC backing or specialist waterproof membrane. These materials may absorb coating differently, so testing is essential.
Can you waterproof an awning?
Yes, you can waterproof an awning in the practical sense of making it water repellent. If the fabric is intact and suitable for treatment, NC Nano Coating for Fabric, Leather & Suede can help restore water beading and reduce moisture absorption.
However, coating will not repair:
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Holes in the fabric
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Torn seams
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Broken stitching
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Cracked waterproof backing
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Damaged frame parts
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Poor drainage angle
- Water entering through fixtures or wall connections
If your awning leaks because of fabric damage or failed seams, repair those issues first. Then clean and reproof the fabric for the best result.
How to waterproof a fabric awning
To waterproof a fabric awning, follow a proper clean, dry and coat process.
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Step 1: Open the awning fully
Extend the awning so the fabric is accessible and under light tension. -
Step 2: Remove loose dirt
Brush away dust, leaves, pollen, cobwebs and dry debris. -
Step 3: Clean the fabric
Use NC Nano Fabric Cleaner to remove dirt, algae, bird droppings, stains and surface contamination. -
Step 4: Allow full drying
The fabric must be completely dry before coating. Do not apply waterproofing spray to damp fabric. -
Step 5: Test first
Apply NC Nano Coating for Fabric, Leather & Suede to a hidden area and check for colour or texture changes. -
Step 6: Apply the coating evenly
Spray the coating across the fabric in controlled, overlapping passes. -
Step 7: Focus on vulnerable areas
Treat seams, edges, stitching, valances and areas where water runs or gathers. -
Step 8: Let the coating cure
Keep the awning extended in dry weather while it cures. -
Step 9: Test water repellency
Sprinkle water on the fabric. If droplets bead and roll away, the treatment is active.
What is the best waterproof fabric for awnings?
The best waterproof fabric for awnings depends on use, budget and exposure. In general, outdoor awning fabrics are designed to resist UV, rain and dirt better than ordinary household textiles.
Common options include:
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Acrylic fabric
Often used for high quality awnings because it offers good colour stability, UV resistance and outdoor durability. -
Polyester fabric
Lightweight, practical and often used for domestic awnings and canopies. It benefits from regular waterproofing treatment. -
Solution dyed outdoor fabric
The colour is built into the fibre, which improves fading resistance. -
PVC coated fabric
Highly water resistant, but less breathable and sometimes less natural looking. -
Canvas or cotton blend fabric
Strong and traditional, but more absorbent unless properly treated.
Even the best awning fabric needs maintenance. Cleaning with NC Nano Fabric Cleaner and treating with NC Nano Coating for Fabric, Leather & Suede helps maintain water repellency and reduce dirt absorption.
Best awning waterproof spray
The Best awning waterproof spray should protect against rain, dirt and stains without making the fabric stiff, sticky or shiny. It should also allow the material to remain breathable where possible.
NC Nano Coating for Fabric, Leather & Suede is a strong option because it provides:
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Water repellent protection
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Dirt and stain resistance
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Invisible finish
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Breathable fabric performance
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Suitable use on many outdoor fabrics
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Easy spray application
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Support against mould and mildew conditions
- Long lasting seasonal protection
For best performance, always clean first with NC Nano Fabric Cleaner.
Awning Cleaner before waterproofing
Cleaning before coating is essential. If dirt, algae, pollen, bird droppings or grease remain on the surface, the waterproofing spray may not bond properly. It can also trap stains in the fabric.
NC Nano Fabric Cleaner works as an Awning Cleaner for suitable fabrics. It prepares the textile for coating by removing contamination and refreshing the surface.
Cleaning first helps:
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Improve coating performance
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Remove algae and dirt
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Reduce staining
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Prevent sealing in contamination
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Create more even water repellency
- Extend the life of the awning fabric
Do not coat a wet awning. Let it dry completely before applying NC Nano Coating for Fabric, Leather & Suede.
Caravan awning waterproofing fabric
Caravan awnings face some of the toughest outdoor conditions. They are set up in fields, campsites and coastal areas, where rain, mud, grass, condensation and wind are common. They are also folded, packed and stored, which can wear down factory protection over time.
For Caravan awning waterproofing fabric, use the same process:
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Pitch or spread out the awning fabric
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Brush away loose dirt and grass
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Clean with NC Nano Fabric Cleaner
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Dry fully before coating
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Spray NC Nano Coating for Fabric, Leather & Suede evenly
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Treat seams, roof panels and lower edges carefully
- Let the fabric cure before packing away
Never store a caravan awning while damp. This is one of the fastest ways to develop mould and musty odours.
What to do if your awning gets wet
If your awning becomes wet during rain, the most important rule is to let it dry before retracting or storing it for long periods.
If the awning gets wet:
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Leave it extended when safe until it dries
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Remove leaves and dirt that hold moisture
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Do not roll it away while soaked unless absolutely necessary
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Reopen it to dry as soon as possible
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Check for mould or mildew after wet storage
- Recoat if water no longer beads
A treated awning dries faster and is less likely to hold dirt, but good drying habits are still important.
How often should you waterproof an awning?
The frequency depends on exposure, fabric type and use. Awnings that stay outside all season need more frequent care than those used occasionally.
General guidance:
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Once per year for normal domestic use
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Twice per year for heavy exposure
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After deep cleaning
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Before the main outdoor season
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When water no longer beads
- After long periods of sun, rain or coastal exposure
A simple test is to sprinkle water on the fabric. If droplets bead and roll off, protection is still active. If water soaks in and darkens the fabric, it is time to clean and recoat.
How to waterproof a horse blanket
The keyword How to waterproof a horse blanket is related because horse blankets and awnings are both outdoor textiles that need water repellency while remaining breathable. The process is similar: clean the fabric with NC Nano Fabric Cleaner, let it dry fully and apply NC Nano Coating for Fabric, Leather & Suede evenly to suitable fabric.
This shows how versatile the coating is for outdoor textile protection, including awnings, caravan fabric, garden parasols, horse rugs, cushions and covers.
Problems prevented by awning waterproofing
Using NC Nano Fabric Cleaner and NC Nano Coating for Fabric, Leather & Suede helps prevent or reduce:
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Rainwater absorption
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Mould and mildew
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Green algae
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Dirt and pollen build up
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Bird dropping stains
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Musty odours
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Slow drying fabric
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UV related fabric weakening
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Difficult seasonal cleaning
- Premature fabric replacement
The cleaner prepares the fabric. The coating protects it.
Maintenance tips for a longer awning lifespan
To keep your awning in good condition:
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Brush off loose dirt regularly
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Remove bird droppings quickly
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Do not retract the awning while wet for long periods
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Clean with NC Nano Fabric Cleaner before coating
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Reapply NC Nano Coating for Fabric, Leather & Suede when water stops beading
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Avoid aggressive cleaners and bleach
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Let the fabric dry before storage
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Check seams and edges for wear
- Use the awning at the correct angle so rain can run off
Good maintenance reduces mould risk and keeps the fabric looking better for longer.
Frequently asked questions (Q&A)
Can you waterproof an awning?
Yes. Clean the awning with NC Nano Fabric Cleaner, let it dry completely and apply NC Nano Coating for Fabric, Leather & Suede. This makes suitable fabric water repellent and easier to clean.
How to waterproof a fabric awning?
Open the awning, clean the fabric, dry it fully, test first and spray NC Nano Coating for Fabric, Leather & Suede evenly across the surface. Focus on seams, edges and high exposure areas.
What is the best waterproof fabric for awnings?
Acrylic, polyester and solution dyed outdoor fabrics are common high performing awning materials. However, all outdoor fabrics benefit from regular cleaning and reproofing.
What is the Best awning waterproof spray?
NC Nano Coating for Fabric, Leather & Suede is a strong choice for suitable awning fabrics because it provides transparent, breathable water and dirt repellent protection.
Do I need an Awning Cleaner first?
Yes. Use NC Nano Fabric Cleaner before coating. A clean, dry surface gives the best waterproofing result.
Can I waterproof a caravan awning?
Yes. For caravan awning waterproofing fabric, clean it with NC Nano Fabric Cleaner, dry fully and protect with NC Nano Coating for Fabric, Leather & Suede.
Will the coating change the colour of the fabric?
The coating is designed to be transparent, but always test first because awning fabrics and dyes vary.
Protect your awning with Nanocoating.co.uk
An awning adds shade, comfort and value to an outdoor space, but the fabric needs care to stay water repellent and clean. Rain, UV, dirt, algae and pollution can all weaken the material over time.
NC Nano Fabric Cleaner prepares awning fabric by removing dirt, stains and surface contamination. NC Nano Coating for Fabric, Leather & Suede then protects suitable fabrics with an invisible water and dirt repellent layer.
Whether you need the Best awning waterproof spray, an Awning Cleaner, or a practical system for Caravan awning waterproofing fabric, Nanocoating.co.uk offers a simple way to maintain cleaner, drier and longer lasting outdoor textiles.
About Nanocoating.co.uk
At Nanocoating.co.uk, our specialists develop high-quality nano coatings and nano cleaners for a wide range of surfaces, helping you protect materials for longer and spend less time cleaning.
Our products are manufactured in the Netherlands and developed with performance, safety and sustainability in mind. They are formulated without intentionally added PFAS and developed in accordance with applicable chemical safety and regulatory requirements, including UK REACH requirements for the Great Britain market.
Whether you want to protect glass, wood, stone, metal, textiles, sanitary surfaces or outdoor materials, Nanocoating.co.uk offers professional-grade nano coating solutions for everyday use at home, in the garden and in commercial environments.
Why customers choose Nanocoating.co.uk
✅ Money-back guarantee if you are not satisfied
✅ Free UK delivery on orders over £40
✅ Order before 23:30 on working days for same-day dispatch
✅ Secure purchase protection through Trusted Shops
✅ Safe and reliable payment options, including Klarna and credit card
✅ High-quality nano coatings and nano cleaners manufactured in the Netherlands
✅ Formulated without intentionally added PFAS
✅ Developed with performance, safety and environmental responsibility in mind
✅ Specialist nano coating and nano cleaning solutions for cleaner, easier-to-maintain surfaces
At Nanocoating.co.uk, we believe surface protection should be effective, easy to apply and safe to use. That is why our nano coatings and cleaners are developed to deliver long-lasting performance while avoiding unnecessary substances and supporting responsible product formulation.