Coroline Roofing Sheets, Installation And Accessories.


The Coroline roofing system is a popular alternative for smaller outdoor roof surfaces. This solution is an ideal material for shed roofing,  carports and other garden areas such as summer houses. Below we provide in depth information about Coroline and what you can do with this system.

Coroline Roofing Sheets

Coroline Corrugated Bitumen Sheets

Coroline comes with corrugated Bitumen sheets which are one of the market leaders by Ariel Plastics. These sheets are durable with a lifespan of around 15 years. This is a tough but lightweight system that comes in four colours. Black are the most popular Bitumen sheets but you can also buy red, green and brown sheets.

Coroline is one is the easiest systems to install on outdoor roof surfaces. Your sheets come with an accessory pack that contains all the fixings. Making up the system is a dry verge, eaves fillers and PVC roof light sheets. Some extra accessories on offer are a ventilator strip and a batten cloaking piece.

The Bitumen sheets are 2000 mm x 950 mm which cover an area of 855 mm. The sheet thickness are 2.66 mm and the weight of each sheet is 5.6 Kg.

Benefits And Qualities
Below are some of the benefits and qualities of this complete roofing system.

  • Durable with a 15 year guarantee
  • Very lightweight but can resist extreme weather conditions
  • Friendly to environment
  • Quick and easy installation
  • Good heat insulation
  • Has good sound absorption qualities


It’s important to make sure your roof is in good condition before starting. You will also need to ensure that your roof deck is thick enough for the Coroline fixings. Once you are ready to begin you need to make sure the sheet end lap is 300 mm for pitches less than 10°. For pitches of 10-15° the sheet end lap is 200 mm.

When applying the sheets they need to overhang the verge and eaves. It’s important to make sure the overhang of the eaves is less than 70 mm. If the sheets are too long you will need to cut them with a saw using lubricating oil.

The sheets have holes at the top and bottom in which to apply a Coroline fixing. You will also need to use a fixing in the middle of each sheet for every other corrugation.

The ridge is quite flexible and easy install by lining up the holes in the sheets. You can nail the last sheet over the barge board to make the dry verge watertight. Another option would be to add a ridge piece.

    Installation Guide and Video
    You can download the full installation guide here

    Other Bitumen Sheets
    Ariel Plastics make three other types of Bitumen roof sheets that may be of interest. These are Onduline roofing sheets, Onduline Mini sheets and Coroshingle sheets.