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Marlon 4mm Horticultural Insulated Polycarbonate Sheet 1220mm x 610mm

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Est. Delivery: 3-5 Working Days
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Corotherm multiwall polycarbonate is the light weight, impact resistant, insulating glazing sheet from Ariel Plastics. Corotherm sheets are available in clear for maximum daylight and a range of solar controlling tints. Full sheets can be purchased from the range of standard sheet sizes.

4mm Twinwall Corotherm is a light weight, impact resistant polycarbonate sheet, suitable for side cladding only, not suitable for roofing.  It is guaranteed for 10 years.

48hr delivery service

48 hour delivery is available on these sheets upon request - please state in the 'special instructions' section of checkout process or contact us on : 01752 692760 to arrange this. Please note there is a minimum order quantity of 5 sheets for this 48 hour delivery service.


• Excellent protection : against hailstones, vandalism and accidental damage.
• Fine optical clarity : clear material maximises light getting into the conservatory - light transmission of 82%.
• Creates : a bright and spacious feeling environment.
• Maximises : solar gain.
• Perfect : for sun lovers.
• Will : require blinds to prevent overheating in the summer months.
• High strength : weight ratio.
• Cost effective : as sheet weight is low, support structures can be lighter providing cost effective buildings.

Marlon provides high levels of insulation.

The Corotherm range by Ariel comes with a 10 Year Guarantee.





Size 1220mm x 610mm Colour Translucent Material Polycarbonate


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Questions & Answers


Why won’t the site allow me to add to cart


* COVID-19: Due to supplier issues this product isn't currently available to purchase.


Hi, can you supply 2 metre x 600 ?


Unfortunately these sheets are not available in that size, apologies.


Does this product have UV protection?


Yes the Marlon sheets have added Longlife protection which provides resistance against the effects of UV weathering. 


Hello, do you supply wider sheets. 610 isn't wide enough for our green house. Thank you


Unfortunately the 4mm is only available in this one size, apologies.


Can we pick sheets up from you please?


Collection is not possible on these items, but they can be ordered for delivery.


can this item be cut to size that is 95x44 cm and what are the delivery charges


We cannot offer a cut to size service on 4mm sheets I am afraid they are only available in this one set size and would need to be cut down on site. 

To check delivery charges best thing to do is add the item to your basket then view the basket in the top right hand corner of the screen.


Marlon 4mm Horticultural Insulated Polycarbonate.If this product is not suitable for roofing greenhouse please advise what is.


You would be able to use this for Roofing a Greenhouse, but they do not provide fixings/accessories for the 4mm sheets I am afraid so would need to find your own fixing solution. If you would like to email more details of your roof into us at sales@roofingsuperstore.co.uk we can look into this a bit more in depth for you.


5 / 5 11 reviews
jennifer rockett
15th August 2021
Very good product
Lucia Emery
29th July 2021
Brilliant but I will never ask a man to help.
Lyn Hayward
4th May 2021
Purchased to replace glass in greenhouse, easy to cut to size and easy to fit. Greenhouse now back to looking good and usable, very pleased with this product.
25th April 2021
My green house looks like new very happy
Ruth Hobart
5th April 2021
Great product, East to install, easy to cut.
Barbara Schroeder
5th April 2021
Easy to cut and easy to handle. Perfect as new roof for a greenhouse
Ian Stagg
19th December 2020
Just what I need to rebuild a green house after a storm. I had to reframe it & this was the best place for sizes & price even though I had to get them sent to North Wales! Great service, I would recommend & use them again.
19th July 2020
Good product delivered by roofing superstore on time. Very pleased.
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Marlon 4mm Horticultural Insulated Polycarbonate Sheet 1220mm x 610mm

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