Tag Archives: roof sheets

Polyester, Plastisol and Anti-Condensation Coatings: What’s the difference?

Here at eRoofs we currently stock a variety of coatings for our roofing sheets, including Polyester, Plastisol, and Anti-Condensation. But, what’s the difference? Let’s find out…

Polyester
High Tensile Polyester felt is a strong, durable and economical method of waterproofing flat and shallow pitched roofing. It consists of a three layer built up system, including a top layer of green or brown mineral coloured felt and has a life expectancy of around twenty years.

polyester brown

Polyester sheets are made with TATA steel and are ideal for a variety of applications from the construction of basic storage or utility shelters through to bespoke commercial buildings or warehouses. High-quality manufacturing and a broad range of sheet sizes ensure great value for money and long-life in demanding seasonal environments.

polyester green

The steel substrate has a hot dipped galvanised coating of 275g per square metre and is primed and coated with 25 microns of high quality Polyester enamel paint. The reverse/internal surface is galvanised and coated with an alkali grey wash coat which ensures its longevity of life and has a moderate resistance to scratching.

polyester sheets

Our Polyester sheets start at just £21.15 each and are available in Goosewing Grey, Juniper Green, Slate Blue and Vandyke Brown.

polyester blue

Plastisol
Plastisol sheets are designed to have a tough coating, giving the TATA steel sheets a high degree of protection against corrosion. They can be used for various applications, from garage roofs, industrial buildings and garden sheds.

plastisol brown

The Plastisol applied to the sheets consists of Polyvinyl Chloride based Thermoplastic Resins with short molecular chains which gives the sheets excellent resistance to UV. To produce high-quality pre-coated roof sheets, a system of multi-layer coatings is applied to zinc coated high tensile steel strips and then oven cured to ensure maximum adhesion. This then provides the sheet with a high corrosion resistance and climatic protection as well as being resistant to abrasion.

With Plastisol sheets, it is imperative that you double check your measurements as we cut them to your requirements.

plastisol grey

Our Plastisol Sheets start at £40.50 each and are available in Merlin Grey, Goosewing Grey, Olive Green and Vandyke Brown.

Anti-Condensation
This roofing coating is manufactured by bonding a non-woven polyester membrane to the reverse side of the sheet. The membrane then works by absorbing the formed droplets and retains them until the temperature rises, leaving the moisture to then dissipate naturally. These sheets also have improved noise reduction from rainfall due to their cushioning effect.

anti con grey

Benefits of Anti-Condensation coated roof sheets are that they are easy to clean, by simply using a hose or pressure washer, their durability compared to non-coated sheets and the fact that in the long run due to these other benefits they are more cost-effective as you will not have to continuously replace them.

As with Plastisol sheets, we do recommend that you carefully check your measurements as the sheets are cut to your specifications.

anticon merlin

Our Anti-Condensation Sheets start at £46.02 each and are available in Goosewing Grey, Merlin Grey, Olive Green and Vandyke Brown.

To keep your Polyester, Plastisol or Anti-Condensation coated roofing sheets secure and watertight, we recommend using Tech Bolts, which are ideal for fastening steel sheets down to timber and steel. These stainless bolts are excellent quality and are supplied with a hexagon head which enables fast and reliable installation time after time for exterior construction.

tech bolts

To give your roof the full finish it deserves, be sure to add our Tech Bolt Caps, which conceal the Tech Bolt heads. They are available in matching colours of Goosewing Grey, Juniper Green and Vandyke Brown and ensure a fabulous, professional finish.

tech bolt caps

eRoofs offers some of the best deals on Roofing Sheets around, including all of the supplies and tools you may need. Not only do we provide plenty of unbeatable deals but also:

A flat rate shipping charge of £25.19 applies to all polycarbonate sheets, no matter how large your order! Super-fast FREE delivery on orders over £100*

*Free delivery applies to most of the UK, but some areas may incur a charge. Please check the eRoofs website for more details.

Polycarbonate Roofing Sheets: A Few Helpful Tips

Polycarbonate is a high performance material which is perfectly suited for roofing. Polycarbonate roofing sheets have been designed for both domestic and commercial use and there are glazing systems which support polycarbonate sheets, making for a strong, yet light, shatterproof system which has UV protection built in and transmits up to 90% of available light. It is also quicker and easier to fit than traditional glazing and offers a longer lasting finish than corrugated sheets.

When choosing polycarbonate roofing sheets, it is important to make careful measurements and get the correct size because the sheets need to fit between your roof joists, however, our helpful eRoofs Sales Team can assist to ensure you get the measurements you require. You can either opt for polycarbonate sheets suitable for roofing and cut them, or buy them at the sizes you need, already cut. Additionally, polycarbonate sheets can be cut to any shape or size making it suitable for all kinds of roofs, including gable end roofs, lean-to roofs, Edwardian and Georgian roofs as well as canopies.

corotherm cut to size

There is also a range of thicknesses when choosing your polycarbonate sheets suiting different purposes. We recommend the following guidelines;

Clear polycarbonate roofing sheets are a versatile option, not only because they are extremely durable, but they also have a modern and sophisticated appearance. They also offer UV blockage, even if they let light in, and because of this, they won’t discolour and will keep their smart appearance for many years to come. It is also worth mentioning that clear polycarbonate roofing sheets are lightweight, making them super easy to work with.

If you are thinking of choosing polycarbonate roofing sheets for your property, here are some helpful hints and tips we think you will find useful.

  • Polycarbonate roofing sheets are only UV protected on one side, therefore prior to installation, ensure you are clear are which side has the UV protection.
  • If you are re-using polycarbonate roofing sheets, and are purchasing more, make sure you check the exact colour to avoid any mismatches.
  • Sealing is very rarely required when installing this kind of roof sheet, so if you are using a sealant, check with the manufacturer to ensure the one you are using is compatible with the sheets.
  • When cutting the sheets, avoid using high-speed cut-off wheels as these can melt the sheets, and instead use sharp scissors or a power saw fitted with fine-toothed blades.
  • It is perfectly normal to see condensation during cooler months, but this can be rectified by modifying your ventilation system.
  • If you find debris and dirt on your sheets over time, the best way to remove this is by using soapy water and a soft brush. Avoid using any abrasive tools or chemicals as they may damage the sheets.

We also offer Polycarbonate accessory essentials to go with your Roofing Sheets, such as Glazing Bars, which are available in white or brown. These Glazing Bars are suitable for Conservatory Roofs, Carports, Gazebos and more, and are super easy to fit, securing a roof sheet on each side.

For roof edges with a sheet on only one side, the gap on the bar’s outer edge must be fitted with a Side Flashing, which again comes in brown or white. Side Flashings act as a drip into the gutter and give a lovely, sealed finish to your roofing sheets.

We also sell Corotherm Anti-Dust Breather Tape, which is a self-adhesive tape for sealing and protecting polycarbonate roof sheets to prevent build-up of moisture while keeping dirt, debris and insects out.

To protect the Breather Tape, you can then use End Closures which allow ventilation of the sheets. End Closures are safe, easy to fit, are UV-resistant and offer good weathering properties.

Another options are the Polycarbonate Super Fixing Buttons, which allows you to secure polycarbonate sheets to timber rafters to reduce the risk of the sheets becoming dislodged in windy conditions. They also come with a rubber compression gasket to stop water ingress and allow a natural expansion and contraction of the sheets.

eRoofs offers some of the best deals on Polycarbonate Roofing Sheets around, including all of the installation supplies and tools you may need. Not only do we provide plenty of unbeatable deals but also:

Handy FREE installation guides and instructional videos

Standard Delivery for all Polycarbonate is £25.19 no matter how large your order