Calculate Roofing Materials
Enter your roof slope dimensions and tile type to get your materials list and cost estimate.
Your Roofing Materials
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Where to Buy Roofing Materials in the UK
Once you know your tile count, here's where to compare prices and buy. Always confirm stock before ordering in bulk.
| Supplier | What They Stock | Best For |
|---|---|---|
| Wickes | Concrete tiles, roofing felt, battens, fixings | Trade pricing, click & collect |
| B&Q | Roof tiles, slates, breathable membrane | UK-wide stores, same-day collection |
| Amazon UK | Self-Adhesive Asphalt Roof Shingles 18pcs — top-rated shed roofing | Most reviewed roofing product, Prime delivery |
Links marked above are affiliate links — we may earn a small commission at no extra cost to you. We only link to reputable UK suppliers.
UK Roofing Tile Coverage Reference (2026)
Different tile types have very different coverage rates. Use this table as a quick reference when planning your project.
| Tile Type | Tiles per m² | Price per Tile (2026) | Typical Pitch |
|---|---|---|---|
| Concrete Interlocking | ~10 | £1.20 | 17.5° minimum |
| Clay Plain Tile | ~60 | £0.60 | 35° minimum |
| Natural Slate (600×300mm) | ~20 | £2.50 | 20° minimum |
Note: Prices are approximate 2026 trade/retail averages. Costs vary by region, supplier, and tile profile. Always get at least 3 quotes before purchasing in bulk.
How to Use This Roofing Calculator
Step 1: Measure the Roof Length
Stand at the gable end and measure the horizontal length of the roof from end to end along the ridge. For a standard semi-detached house this is typically 5–9 metres.
Step 2: Measure the Slope Length
Measure from the ridge down to the eaves along the surface of the roof slope (not the horizontal span). This is best done from inside the loft or using a long tape measure on the roof surface. For a typical UK house, this is 4–6 metres per slope.
Step 3: Select Number of Slopes
A standard gable or hip roof has 2 slopes. A lean-to extension or mono-pitch roof has 1 slope. If your roof has more than 2 slopes (e.g. an L-shaped roof), calculate each section separately and add the results together.
Step 4: Choose Your Tile Type
Concrete interlocking tiles are the most common choice for new builds and re-roofs in the UK due to their low cost and durability. Clay plain tiles are traditional and aesthetically superior but require a steeper pitch. Natural slate is premium and long-lasting but more expensive.