Extreme Clean Conservatory Roof Cleaner | UPVC & Glass Cleaning 20.0 kg

Manufactured by Extreme Clean

Why Choose Our Products?

Non-caustic pH-balanced conservatory roof cleaner formula – safe on UPVC glass aluminium & seals.

Destroys and lifts algae lichen moss & atmospheric grime from conservatory roofs and frames.

Water-repellent additive helps prevent future staining and pooling on conservatory roof panels.

Concentrated cleaner – dilute up to 1:10 for maintenance or use neat on heavy biological growth.

Easy application – spray on conservatory roofs agitate lightly rinse off – no harsh scrubbing needed.

Made & bottled in the UK in UN-approved HDPE drums.

Free next-day mainland UK shipping.

Extreme Clean Conservatory Roof Cleaner is a professional-grade, caustic-free detergent and biocide blend designed to restore and protect conservatory roofs and frames without damaging delicate surfaces. Formulated for use on glass or polycarbonate roof panels, UPVC rafters, gutters, and aluminium frames, this powerful cleaner removes stubborn traffic film, bird droppings, green algae, moss, and atmospheric grime while a quaternary biocide kills spores to help prevent regrowth.

Unlike harsh bleach-based products, the balanced pH formulation is gentle on seals, gaskets, and plastics, ensuring a safe clean that won’t cause etching, fading, or yellowing. Advanced surfactants break the bond between dirt and the surface, while a built-in hydrophobic additive creates a water-repellent layer that helps rain naturally wash away dirt, keeping conservatory roofs cleaner for longer with less frequent maintenance.

This concentrated solution can be diluted for routine cleaning or applied neat to tackle heavy biological growth, offering a cost-effective, professional-quality clean for homeowners and contractors alike.

Key Features & Benefits

Non-caustic formula: Safe for use on UPVC, glass, polycarbonate, aluminium, and rubber seals
Biocide action: Kills algae, moss, lichen, and spores to slow future regrowth
Protective finish: Hydrophobic additive reduces staining and water pooling
Powerful cleaning: Removes bird droppings, traffic film, and tough organic growth
Economical concentrate: Dilute up to 1:10 for maintenance or use neat for heavy contamination
Easy application: Spray on, lightly agitate, and rinse clean—no harsh scrubbing required
UK manufactured: Made and bottled in UN-approved HDPE drums for reliable quality

Ideal Uses

Glass and polycarbonate conservatory roof panels
UPVC rafters, gutters, and roof frames
Skylight surrounds and lantern roofs
Greenhouse glass and acrylic panels
Fascias, soffits, and cladding around conservatories

Sizes & Coverage

Pack Size	Dilution 1:10 (Maintenance)	Neat / Heavy Soil
5 L	≈ 150 m²	≈ 40 m²
20 L	≈ 600 m²	≈ 160 m²

Coverage will vary depending on surface texture and level of contamination.

Why Choose Extreme Clean Conservatory Roof Cleaner

pH-balanced formulation safe on plastics, glass, and seals
Destroys algae, moss, lichen, and atmospheric grime quickly and effectively
Water-repellent finish helps surfaces stay cleaner for longer
Concentrated formula provides excellent economy for both light and heavy cleaning
Simple spray-on, rinse-off application saves time and effort
Manufactured and bottled in the UK with free next-day mainland shipping

Safety First

Wear gloves, eye protection, and suitable workwear.
Work from the ground or a secure platform and follow proper ladder safety.
Pre-wet and protect nearby plants or grass to prevent scorch from runoff.

Dilution Guidelines

Light Dirt / Routine Cleaning: Dilute up to 1:10 with clean water.
Algae Streaks / Moderate Growth: Dilute to 1:4 with water.
Heavy Growth / Black Lichen Spots: Use neat for maximum strength.

Application Method

Shake or stir well before use.
Apply with a low-pressure sprayer, watering can, or soft extension brush, working from bottom to top to avoid streaking.
Allow a 2–5 minute dwell time, keeping the surface wet, do not allow the cleaner to dry.
Agitate stubborn areas with a non-scratch brush to lift ingrained dirt or algae.
Rinse thoroughly with a hose or low-pressure washer until runoff is clear.
For aged or stubborn staining, allow to dry and repeat after 24 hours if necessary.

Pro Tips

Clean on a cool, overcast day to reduce evaporation and avoid streaks.
Rinse all equipment with clean water after use to prolong tool life.

Important Restrictions

Not recommended for polished anodised aluminium without a test patch.
Do not mix with chlorine bleach, acidic cleaners, or other chemicals.
Always patch-test on delicate surfaces before full application.

Property	Value
Appearance	Clear, pale-green liquid
Odour	Mild detergent
pH (neat)	8 – 9
Active ingredients	Non-ionic & amphoteric surfactants, quaternary ammonium biocide, water-repellent additive
Dilution range	Neat – 1:10 water
Contact time	2–5 minutes
Biodegradability	> 90 % (OECD 301F)

Property	Value
Packaging	UN-approved HDPE – 5 L & 20 L
Shelf life	18 months (sealed, frost-free)
Transport class	Non-hazardous

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Frequently Asked Questions

What surfaces can Extreme Clean Conservatory Roof Cleaner be used on?

It is safe for glass, polycarbonate roof panels, UPVC rafters, gutters, aluminium frames, skylights, fascias, soffits, and greenhouse panels. Always test on delicate or polished surfaces first.

Is this cleaner safe for seals and gaskets?

Yes, the pH-balanced, non-caustic formula is designed to be gentle on rubber seals and gaskets while still effectively removing dirt and algae.

Can it be used on polycarbonate without causing yellowing?

Absolutely. The non-bleach, caustic-free formula will not etch or yellow polycarbonate panels when used as directed.

How should I dilute the product for regular cleaning?

For routine maintenance, dilute up to 1:10 with clean water. For heavier soiling or algae streaks, use 1:4, and apply neat for stubborn black lichen.

How long should the cleaner be left on the surface?

Allow it to dwell for 2–5 minutes while keeping the surface wet. Do not let the product dry during treatment.

Do I need to scrub the roof while cleaning?

Light agitation with a soft, non-scratch extension brush is recommended for stubborn dirt, but no heavy scrubbing is required.

Can I apply this cleaner with a pressure washer?

It can be applied with a low-pressure sprayer or watering can. A pressure washer may be used only for rinsing at a gentle fan-jet setting.

Will it damage nearby plants or grass?

Runoff may scorch foliage, so always pre-wet surrounding plants and rinse them well with fresh water after cleaning.

Is this product safe to use indoors or on enclosed structures?

It is intended for outdoor use. Always work in well-ventilated areas and avoid use in enclosed spaces without proper ventilation.

Can it remove black lichen stains completely?

Yes, when applied neat and allowed sufficient dwell time, it can break down black lichen spots. Repeat applications may be required for deeply ingrained marks.

How much area does one container cover?

A 5 L container covers around 150 m² at a 1:10 dilution or about 40 m² when used neat. Coverage varies with surface texture and contamination level.

Is the product safe for aluminium frames?

It is safe for most aluminium frames, but always test polished anodised aluminium in a small area first to ensure compatibility.

Can I use this cleaner in direct sunlight?

It is best to clean on a cool, overcast day to slow evaporation and reduce streaking for optimal results.

Does the cleaner provide any protection after rinsing?

Yes, a hydrophobic additive leaves a microscopic water-repellent layer that helps shed rain and slows future dirt build-up.

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£69.99 (inc VAT)

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Delivery within 24 to 48 hours

Size

20 Litres 5 Litres

Product variants

*subject to stock levels at the time of your order.