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We Also Sell Scaffolding | Fast Delivery or *Collections - Please Call First*

Corrugated Roofing Sheets For Sale

Galvanised steel CI sheets • 8ft & 10ft lengths • Tough corrugated profile for strength & watertight coverage • Excellent rainwater runoff & weather resistance • Long-lasting 25–60+ years • Ideal for sheds, barns, garages, warehouses, agricultural buildings & temporary roofs • Lightweight & easy to install.

Heavy-Duty Galvanised Steel • Fast Nationwide Delivery • Collection in West Sussex
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Durable, Versatile, Built to Last

At West Sussex Scaffolding, we supply a wide range of corrugated roofing sheets, perfect for agricultural buildings, sheds, warehouses, barns, shelters, and temporary structures. Designed for long-lasting performance, these sheets are lightweight, strong, and weather-resistant, offering a cost-effective solution for almost any roofing or cladding project.

Our corrugated sheets are available in various materials, sizes, and profiles, including metal options, so that you can choose the right type for your building’s needs. They are ideal for sloping roofs, side cladding, fenced areas, or temporary structures, and are easy to handle, store, and transport.

Why choose corrugated roofing?

  • Exceptional durability and resistance to rust, corrosion, and insect damage.
  • Lightweight for easy installation and handling.
  • Adaptable to UK weather conditions and a variety of roof pitches.
  • Suitable for both permanent and temporary structures.

 

Browse our selection of sheets above and click on any product for full specifications, sizes, and pricing. Whether you’re a builder, farmer, or contractor, we can help you find the right corrugated sheet for your project, with fast delivery across the UK or collection from our Aldingbourne yard.

Key factors when choosing corrugated roofing sheets

Factor

What to Consider

Impact on Performance

Recommendation for Most UK Projects

Quick Tip

Coating Type

Galvanised (zinc) vs. painted/coated variants

Corrosion protection & longevity

Start with galvanised for value

Galvanised offers good self-healing on cuts

Thickness (Gauge/SWG)

Thicker = stronger (e.g., 0.5mm vs. 0.7mm)

Load-bearing, dent resistance

0.5–0.7mm for most roofs

Thicker for high-wind or snow areas

Pitch & Profile

Deeper corrugations for better runoff/strength

Water shedding & spanning distance

Classic 3-inch for sloping roofs

Minimum 5–10° pitch advised

Corrosion Environment

Coastal vs. inland; salt/acid exposure

Rust risk over time

Coated for harsh areas

Galvanised excels in rural/inland use

Colour / Finish

Bare metal vs. pre-painted

Aesthetics & UV fade resistance

Bare galvanised for traditional

Paint reduces heat absorption

Corrugated roof sheeting information

You can, but it is not recommended for many reasons, including the risk of falling from height and damage to the sheeting.

These sheets reflect light and heat, so surprisingly, they will cool your home during the hotter months.

No, they are not noisy when rain falls on them. However, the structure in which the roof is placed can make a difference. For example, the rain may appear louder if a barn or shed lacks complete insulation.

These sheets will work in their environment: in winter, they will keep a building warm, and in summer, they will reflect heat and keep it cool. It is recommended that sound insulation help to regulate temperatures.

Corrugated roofing sheets are already galvanised, so a zinc coating protects them; however, to further waterproof, you can also apply a liquid rubber waterproof sealant to all seams, vents and flashings.

This will depend on your use. If you are creating a temporary roof, using roofing couplers to secure the sheets is recommended. For a permanent cover, you can use screws to attach the sheets to the purlins and to each other.

It is suggested that they should be spaced no more than 1.2m apart, but exact measurements will vary; this is just a guide.

Yes, you can paint them. It will provide an extra durable barrier whilst looking great, and it is advised to use an acrylic-based paint suitable for outdoor use.

As mentioned above, experts recommend an acrylic-based paint or an acrylic latex paint. You must ensure the paint offers UV protection and is weather-resistant.

The screws are fastened to the structural supports, called purlins. It is recommended that these be secured at the crest of the corrugation wave rather than at the lower seam, as this ensures that any water will flow freely.

Yes, they can be stored and stacked neatly.

They are easy to handle because they are lightweight; however, they have sharp edges, so care should be taken. When holding them at height, please be aware of strong winds.

The overall length is the distance measured from one end to the other along the sheeting.
Covered means how much coverage each sheet will give you once it has been overlapped with other sheets. This is approximately 2 inches shorter than the overall size.

Metal Finish/Coating

Description

Corrosion Resistance

Typical Lifespan (UK Conditions)

Appearance

Best For

Notes

Plain Galvanised (Zinc-Coated)

Hot-dip zinc coating on steel; classic “shiny silver” look that weathers to patina

Good

20–40+ years

Metallic silver (weathers grey)

Agricultural barns, sheds, and warehouses

Most common & cost-effective; self-healing on minor scratches

Pre-Painted / Polyester-Coated

Galvanised base + polyester paint layer in various colours

Very Good

25–50+ years

Coloured (wide range)

Commercial, residential, aesthetic builds

Better UV/fade resistance; popular for modern looks

Plastisol / PVC-Coated

Galvanised base + thick PVC/plastisol leather-grain finish

Excellent

30–50+ years

Textured coloured

Harsh environments, coastal areas

Superior scratch/weather protection; leather-like texture

Galvalume / Aluminium-Zinc

55% aluminium + 45% zinc alloy coating (not pure zinc)

Superior

40–60+ years

Dull silver/aluminium sheen

High-corrosion areas (coastal/marine)

2–4x better edge protection than standard galvanised

 

 

Profile Type

Corrugation Pitch/Depth

Coverage Width (Typical)

Strength & Use Case

Aesthetic / Traditional Feel

Common Thicknesses Available

Why Choose It?

3-Inch Corrugated (Classic / CI / 13.5/3 or 10/3)

76mm pitch / ~18–20mm depth

~610–990mm (lapped)

Excellent water runoff; versatile

Traditional “wriggly tin”

0.4–0.7mm

Most popular for farms/sheds; strong yet lightweight

13/3 or Sinusoidal

76mm pitch / similar depth

Similar to 3-inch

High rigidity; heritage/agricultural

Vintage corrugated iron

0.5–0.7mm

Timeless look; easy stacking/transport

Other Modern Profiles (e.g., for comparison)

Varies (shallower/deeper)

Wider coverage options

Better spanning; industrial

Less wavy, more structured

0.5–0.9mm

Used in commercial; not our current stock focus

Below is a practical, step-by-step guide based on standard UK best practices. Always prioritise safety (wear gloves, eye protection, and non-slip shoes; use fall protection on roofs), follow manufacturer specs (e.g., BS 3083:1988 for your sheets), and consult a professional if unsure, especially for larger structures.

Preparation Tips

  • Measure accurately: Check roof length, width, and pitch multiple times. Ensure the roof is square (use the 3-4-5 triangle method). Order sheets by the longest measurement to minimise cuts.
  • Prepare the structure: Clean the roof deck, repair any damage, and install purlins (horizontal supports) at 1–1.2m spacing (closer for thinner sheets or high loads). Minimum pitch: 5–10° (steeper is better for runoff; shallower needs larger overlaps/sealant).
  • Gather tools/materials: Self-drilling screws with EPDM washers (e.g., 65mm BAZ type), sealant/butyl tape, tin snips or nibbler for cuts, drill, ladder/scaffolding (tie in with your services!), and zinc-rich spray for cut edges.
  • Handle safely: Sheets have sharp edges—use gloves. Avoid windy days; store flat/dry to prevent white rust.

Step-by-Step Installation Guide

  1. Install underlayment (recommended): Roll out synthetic felt or breathable membrane, overlapping 100–150mm. This adds extra moisture protection.
  2. Start at the eaves: Begin in the corner opposite the prevailing wind direction (e.g., if the wind comes from the west, start on the east side). Lay the first sheet with 50–100mm overhang at eaves/gutters for runoff. Align corrugations perpendicular to purlins.
  3. Fix the first sheet: Secure it through the crest (high point) of the corrugations into the purlins. Use screws every 150–300mm horizontally (more at edges/overlaps for wind uplift). Don’t overtighten—compress the washer just enough to seal without dimpling the metal.
  4. Overlap subsequent sheets:
    • Side overlaps: Minimum 1 corrugation (about 76mm); 2 for pitches <10° or exposed areas. Align waves for a tight fit.
    • End overlaps (if using multiple sheets lengthwise): 150mm for ≥10° pitch; 300mm for shallower. Apply sealant/tape between layers.
    • Lay in runs from bottom up, working across the roof.
  5. Continue rows: Overlap the upper rows onto the lower ones by the end-lap amount. Stagger side overlaps if possible for better strength.
  6. Cut if needed: Mark and cut on the ground (use tin snips, a nibbler, or an angle grinder with a metal blade). Apply zinc-rich spray to cut edges to prevent rust.
  7. Finish edges/ridge:
    • Add flashings (eaves, gables, ridge caps) for watertight seals.
    • Use foam fillers/closure strips at eaves/ridge to block insects/dust.
    • For ridges: Install a ridge cap over the overlaps, securing it firmly.
  8. Final checks: Walk carefully (on crests near purlins), inspect for loose screws/gaps. Clean debris. Consider anti-condensation measures (e.g., dripstop membrane) for enclosed spaces.

Common Mistakes to Avoid

  • Fixing in valleys (low points) instead of crests → causes leaks (water pools around screws).
  • Insufficient overlap → leads to wind-driven rain ingress.
  • Overtightening screws → damages the washer/seal or dents the sheet.
  • No sealant on overlaps/cuts → accelerates rust or leaks.
  • Poor purlin spacing → sagging or weak support.
  • Ignoring pitch → poor drainage on flat roofs.

Pro Tips for Longevity

  • Work in dry, calm weather.
  • Pre-drill if needed to avoid shifting.
  • For high-wind/coastal areas: Extra fixings + larger overlaps.
  • Maintenance: Inspect annually; tighten screws, clear debris, touch up cuts with zinc spray.