Corrapol-BT Corrugated Bitumen Roof Sheet (950mm wide)

Corrapol-BT corrugated roofing sheets are manufactured using bitumen to provide excellent waterproofing properties. These bitumen roof sheets are quick and easy to install at home or on-site.

We manufacture bitumen roof sheets in the four popular colours including black, green, red and brown.  With a range of corrugated fixings, flashings and ridges available in matching colours, it is easy to build your roof to a professional standard.

Common uses for Corrapol-BT Bitumen Roof Sheets

Bitumen roof sheets are a very versatile material which is one of the reasons behind their popularity for outdoor DIY and agricultural projects. They are used in many roofing applications such as Timber sheds, outbuildings, barbeque shelters, lean-tos, log stores and more. 

How many bitumen sheets will I need?

With a simple calculation, you can work out how many sheets you need for your Corrapol-BT Bitumen Corrugated Roof. 

The coverage width of a Corrapol-BT Roof Sheet is 855mm allowing for one corrugation overlap or 760mm if you are allowing for two corrugation overlaps. For example, if you had a roof that was 5 metres wide by 2 metres deep/long you would simply divide the width of your roof by the coverage width of a sheet. 

5000mm ÷ 855mm = 5.85

Next, round up the number to ensure full coverage, meaning in this example you would require six Corrapol-BT Sheets across the width of your roof.  Next, simply divide the length/projection of your roof up to work out how many 1 or 2m sheets you will need in each run.

Still unsure how many bitumen roof sheets you need? Don't worry, it's not always as simple as it seems so just Live chat with our team for guidance.

What fixings and flashing do I need to install Bitumen Roof Sheets?

Installing corrugated bitumen sheets is a very easy process. The exact corrugated fixings, wall and side flashings you will require depends on your roof shape. However, below is a table showing you some common accessories that every type of Corrapol-BT Bitumen Corrugated Roof requires:

Common Accessories	Where & Why are they needed?
Rock N Lock Gable Flashing	Essential for properly waterproofing your roof and protecting the gables, sometimes called verges, from water leakage.
Foam Eaves Fillers	These foam eaves fillers are great for draught exclusion and sealing.
Corrugated Roof Fixings	For securing the bitumen sheets down to your purlins or roof boards.
Corrugated Roof Nails	A budget fixing option for securing your corrugated sheets down

Please view our Exploded Project Images to see the full details of the other items you will need to complete your roofing project.

Are Bitumen Roof Sheets made longer than 2 metres?

No unfortunately due to the manufacturing process, all bitumen roofing sheets are only available up to 2 metres long. For most applications, you can simply overlap the sheets to achieve greater lengths. A unique benefit of the Corrapol BT and Awnapol Premium Bitumen Corrugated sheets is that they are available in 1 metre lengths which helps to reduce wastage when overlapping to longer lengths.

If you are looking for a longer sheet it is worth considering the Corramet corrugated roof sheets which are available up to 4 metres long. Although these 4 and 3 metre corrugated sheets have a small cost premium they are more robust and last over double the life of bitumen sheets. What's more, Corramet Sheets, come with fixings included.

Technical Details:

• Width: 930mm
• Coverage Width: 855mm (one overlap)
• Sheet Length: 1000 or 2000mm (Can be easily overlapped in length and width)
• Life Expectancy: 10 Years
• Material: Bituminous fibre

Related Blog Articles:

• Important Tips for Corrugated Roof Flashing
• 3m & 4m Corrugated Plastic Roofing Sheets - Sorted

Have more questions about our Corrugated Bitumen Roof Sheets?

Still unsure what roofing materials you'll require for your project or have a lingering technical question? Use our online chat to speak to one of our product experts, who will be able to help you pick the right roofing products for your project. Alternatively, you can get in touch via shop@clearamber.com