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16mm & 25mm Bronze Polycarbonate Multiwall Roofing Sheet

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Bronze Marlon ST Multiwall polycarbonate sheet is a lightweight insulating glazing sheet manufactured from damage resistant polycarbonate. Light in weight but rigid in structure, Marlon ST multiwall roofing sheets and accessories offer an incredibly adaptable yet economical roofing or glazing solution.
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We have the machinery and expertise to manufacture bespoke items in acrylic, polycarbonate and many other plastics, from one-offs to large production runs. Read more about the various services we offer, or complete the form below to request a quote.

CNC Routing

Our advanced Multicam Apex 3R (3 Axis) CNC routers allow us to provide an extensive range of precision CNC routing services. Read more

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Laser cutting is a fabrication process that uses a thin, intensely focused stream of light to cut through a range of different materials, including plastics and acrylics.  Read more

Diamond & Flame polishing

Edge polishing is a fabrication process that polishes the edges of acrylic panels, removes any cutting marks, and achieves a smooth, glossy finish.  Read more

Rotary & Laser Engraving

Laser engraving is a fabrication process that uses a laser beam to physically remove the surface of a material to create an indentation that is noticeable to both the eye and touch.  Read more

Line Bending

Line bending is a process that’s used to make precise folds in plastic and acrylic components. Our line bending fabrication service allows us to bend plastic and acrylic sheets along a defined ‘line’ – without any need for gluing or joining.  Read more

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Bronze Marlon ST Multiwall polycarbonate sheet is a lightweight insulating glazing sheet manufactured from damage resistant polycarbonate. Light in weight but rigid in structure, Marlon ST multiwall roofing sheets used alongside the complete Marlon ST rage of fitting accessories offer an incredibly adaptable yet economical roofing or glazing solution. Bronze polycarbonate multiwall sheeting is available in both 16mm and 25mm thicknesses.

Marlon ST multiwall sheets are available in a range of standard sizes but can also be supplied cut to size ready for immediate installation.

Typical applications

  • Lean-to extensions
  • Car ports
  • Conservatories
  • Pergolas
  • Gazebos
  • Sun rooms
  • Swimming pool covers
  • Rooflights
  • Canopies
  • Walkways

Key features

  • Order cut to size
  • Part of the high quality Marlon ST Range
  • Lightweight
  • Rigid
  • Hight structural strength
  • High light transmission
  • Good insulation
  • Solor control
  • Easy installation
  • UV protection

The Marlon ST Polycarbonate Roofing System

Image of Multiwall installation

Polycarbonate Roofing Sheet

Twinwall and Multiwall Polycarbonate sheet available in Clear, Opal and Bronze finishes in standard sheet sizes or cut to size.

Glazing Bar

Roofing Glazing Bars are fitted to rafters to support and join roofing sheets.

End Cap

Glazing Bar End Caps are fitted to the ends of glazing bars for a neat finish.

Side Flashing

Glazing Side Flashing is used to finish the side edges of the polycarbonate roofing sheet.

End Closure

The Roofing End Closure finishes the front edge of the roofing sheets.

Butyl Flashing

Butyl Wall Flashing Tape is applied where the roofing sheet meets the wall to prevent water entering the joint between the two surfaces.

Solid Tape

Solid Roofing Tape is used to cover and seal the open flutes at the end of the roofing sheets, it's specifically used to seal the end of the roofing sheet that meets the wall.

Breather Tape

Roofing Breather Tape is applied to the open edge of the bottom side of the roofing sheets. It creates a protective seal while permitting air to move freely in and out of the sheet, helping minimise condensation.


Description

Easy to handle and install

The Marlon ST range is suitable for DIY installation. Marlon polycarbonate roofing sheets and fitting accessories are all light in weight and easy to handle. If not ordering roofing sheets cut to size multiwall polycarbonate can be cut on site using a saw with a fine toothed blade.

Cut to Size

Take advantage of our cut to size service. Order multiwall polycarbonate sheets cut to size, delivered to your door, ready for installation.

Please note - All multiwall and multiwall polycarbonate sheet ordered cut to size (rather than in standard sheet sizes) are supplied with the top edge sealed with Marlon breather tape and the bottom edge sealed by Marlon solid tape. Sheeting ordered in standard sizes rather than cut to size is supplied without tape with the flutes open. Breather tape and Solid tape should be applied to the open ends during installation.

Marlon ST Range

Bronze Multiwall Polycarbonate Sheet is part of the Marlon ST Range. The range includes various finishes of multiwall polycarbonate sheeting plus all to fixing accessories required to complete your project.  

Lightweight

Light in weight but rigid and self-supporting. The multiwall stricture of the sheet creates it's rigidity, the amount of polycarbonate used to create the sheet is relatively low, keeping the weight and cost of the sheet down.

Light Transmission

Multiwall polycarbonate sheet offers excellent light transmission. Keep the elements out but let the natural light flood in.  The 16mm Bronze finish has 18% light transmission and the 25mm has 7%. The Clear and Opal finishes offer differing levels of light transmission and diffusion to suit your requirements. Cut energy costs by utilizing natural light over artificial light.

Insulation

The multiwall structure of Marlon ST sheet provides a thermally insulating glazing solution. Achieve U-values as low as 0.83W/m²K.

UV Protection

Marlon ST has a layer UV protection which blocks 98% of harmful UV rays. UV protective glazing protects everything underneath from the damaging effects of the sun, be it people, animals or plants.

Manufacturer

Brett Martin

Brand

Marlon ST (Corotherm)

Structure

Multiwall (16mm - Triplewall, 25mm - 7xWall)

Sheet thickness

16mm, 25mm

Light transmission

18%

Specific gravity

1.2 g/cm³

Tensile strength at yield

>60 MPa

Tensile strength at break

>70 MPa

Modulus of elasticity

>2300 MPa

Softening temperature - Vicat ‘B’

148°C

Linear thermal expansion

6.8 x 10-5 m/m.K

Maximum service temperature

100°C

Fire rating

UK Class 1 

Recyclable

Yes

Cutting tolerance

+/- 3mm

We provide a fast delivery service throughout the UK using recognised Couriers such as Royal Mail, DHL, and Parcel Force.

Delivery prices are calculated based on the length of the longest side of the material ordered i.e. the delivery price of a panel measuring 1500mm x 1000mm would be based on the 1500mm dimension. Only one delivery charge is charged per order regardless of how many items are ordered.

UK Delivery costs

Longest side Standard Delivery Express Delivery Order value for FREE delivery
Samples (100mm x 100mm) £2.95 £9.95 £150
Less than 500mm £5.95 £12.95 £150
500mm to 1499mm £9.95 £19.95 £150
1500mm to 2499mm £14.95 £24.95 £150
2500mm or greater £19.95 £29.95 £300

Standard delivery for all accessories is £7.95, or £12.95 for Express delivery.

All prices listed include VAT.

European/EU Delivery

We have temporarily disabled European delivery for orders placed through our website whilst we make changes to ensure that the correct rate of EU VAT is being charged. Our team can however manually process orders so please contact us if you require delivery to the European Union.

Delivery Times

We process and dispatch the vast majority of orders within 48 hours of receiving the order, however our guidelines for delivery times are listed below:

  • Standard delivery (3-5 working days)
  • Express delivery (2-3 working days)

Express Delivery

If you require faster delivery you may wish to consider choosing our Express Delivery option at the checkout. Express Delivery orders are prioritised over standard orders and delivered using a recognised nationwide courier.

Next Day Delivery

Next Day delivery is not available via our website due to the volume and bespoke nature of orders we receive on a daily basis. However, if you need to place an order and require Next Day delivery please contact us – we will make every effort to meet your requirements and deadlines.

Remote Areas

Due to the nature of the ”made to measure” products we supply, we provide delivery prices at a standard rate and reserve the right to cancel an order should it become economically unviable to fulfill the order. In these extremely rare circumstances, the customer will be contacted first to discuss alternative options.

When delivering to some locations we can incur increased Courier delivery costs. Should delivery be required to one of the locations listed below a remote area supplement will be automatically added to the price of delivery during the checkout process.

Longest side Remote area supplement
Samples (100mm x 100mm) £0.00
Less than 500mm £0.00
500mm to 1499mm £5.00
1500mm to 2499mm £10.00
2500mm or greater £15.00

All prices listed include VAT.

Examples of delivery locations which may incur a remote area supplement are:

  • Channel Islands
  • Isle of Man
  • Isles of Scilly
  • Isle of Wight
  • Scottish Islands
  • Scottish Highlands
  • Remote areas of Scotland
  • Northern Ireland

If you require delivery to one of these areas please get in touch to discuss your order.

Can I collect my order from Simply Plastics?

Yes, of course. Orders can be collected from our premises in Colchester, Essex. At the final stage of the checkout process there is a delivery option labelled "Collection/pickup" which is free. Once your order is complete, you will be notified by email along with our address and collection times.

I need my order urgently, can I pay for faster shipping?

Yes. We offer an express delivery service which aims to deliver all orders in 1-3 working days. Orders are delivered by a recognised courier company and may require a signature on delivery.

What thickness multiwall polycarbonate sheet should I use?

Simply Plastics offer Marlon ST Polycarbonate multiwall sheet in thickness of 10mm, 16mm and 25mm to suit different applications.

Here are some example applications to guide your decision,

10mm - Garden Pergola, Vertica privacy glazing

16mm - Gazebos, Lean-tos, Carports

25mm - Large lean-to extensions, Garden buildings

Is it possible to cut twinwall and multiwall myself?

Yes, the walls of twinwall and multiwall polycarbonate sheets are very thin and therefore can easily be cut with a fine toothed saw. If you do choose to cut twinwall/multiwall roofing sheets yourself you should consider sealing the openings using breather tape or solid roofing tape. 

What's the difference between twinwall and multiwall polycarbonate sheet?

Generally speaking twinwall refers to a product that has just two walls, whereas multiwall refers to any polycarbonate sheeting that has more than two walls.

We offer Marlon ST Sheet in the thicknesses and wall structures below,

10mm - Twinwall

16mm - Triplewall

25mm - x7 wall

What colour twinwall or multiwall polycarbonate sheet should I use?

We offer multiwall sheet in three finishes, Clear, Opal and Bronze. Each finish offers different benefits to suit different requirements.

Clear - High light transmission with most standard appearance

Opal - Lower light transmission provides increased privacy and heat reduction

Bronze - Reduces glare  

What side of Marlon ST Multiwall sheeting is UV protected?

This should be clearly labelled on the protective film.

Which direction do the flutes run on twinwall and multiwall polycarbonate roofing sheets?

The flutes run parallel to the height of a sheet.

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