Sheet Roofing

Corrugated Roofing Sheets for Sheds & Outbuildings

At County Building Supplies, we supply corrugated roofing sheets for professional builders, roofers, contractors and DIY customers. Whether you're replacing a shed roof or installing a covering on a suitable garden building, corrugated roofing sheets offer a practical way to protect structures from the weather.

Our range includes Ariel Coroline black corrugated roofing sheets, measuring 950 x 2000mm, for suitable pitched roofing applications.

What Are Corrugated Roofing Sheets Used For?

Corrugated roofing sheets are commonly used on sheds, garden buildings, garages and other suitable outbuildings. Their profiled design helps direct rainwater down the roof towards the guttering.

Coroline sheets are manufactured from bitumen-based material and provide a lightweight alternative to some traditional roofing coverings.

Always check that the chosen sheet is suitable for the building, roof pitch and supporting structure.

Choosing the Correct Roof Pitch

Roof pitch is an important consideration when installing corrugated roofing sheets. The minimum permitted pitch depends on the manufacturer's specification and the installation method.

Lower roof pitches may require additional support or larger sheet overlaps to maintain weather resistance.

Before ordering, check the Coroline installation guidance for the required roof pitch, support spacing and fixing arrangements.

Installing Coroline Corrugated Roofing Sheets

Correct installation helps achieve reliable weather protection and long-term performance.

Roofing sheets should be fitted to a suitable supporting structure using the manufacturer's recommended fixings. Follow the specified requirements for side laps, end laps, sheet positioning and fixing locations.

Ensure the sheets are installed in the correct direction to allow rainwater to drain effectively. Suitable verge, ridge and edge details may also be required depending on the roof design.

Roofing work at height should be carried out with appropriate access equipment and safety precautions. Do not walk directly on unsupported roofing sheets.

How Many Corrugated Roofing Sheets Do You Need?

County's Coroline roofing sheets measure 950mm wide x 2000mm long, giving a nominal area of 1.9m² per sheet before allowing for overlaps.

To estimate quantities, measure the actual roof slope dimensions and calculate the total area requiring coverage.

Remember that the effective coverage of each sheet will be less than its nominal dimensions because of side and end overlaps. Use the manufacturer's installation guidance to calculate the number of sheets required.

Maintaining Corrugated Sheet Roofing

Regularly inspect sheet roofing for damaged fixings, loose edges, debris and signs of deterioration. Keep gutters clear and check that roof drainage remains unobstructed.

Any damaged sheets or roof details should be assessed and repaired using compatible materials and the manufacturer's recommendations.

Need Advice?

Not sure how many corrugated roofing sheets you need for your project? Visit your local County Building Supplies branch or contact our team for product information, quantities and availability.