Roof tile sizes how many roof tiles per square metre
Roof tile size: how many roof tiles are needed per square metre?
The number of roof tiles needed per square metre varies and can range from less than 10 to more than 60. Standard plain roof tiles typically measure 265x165mm. With a minimum headlap of 65mm and a maximum batten gauge of 100mm, these tiles will give a covering capacity of 60 tiles per metre squared.
Roof tiles, however, come in a vast range of shapes and sizes, and roof structures can also vary greatly. Factors such as the size of your selected roof tile, whether the tiles are interlocking, roof pitch, required headlap and batten gauge can all affect the number of roof tiles required. Determining precisely how many roof tiles are needed for a project will require careful calculation based on all these factors.
Comparing roof tile sizes and coverage capacity
The table below can help you determine approximately how many roof tiles are needed per square metre for a project. Pantiles and interlocking tiles are usually larger than plain tiles, so fewer tiles are required.
For a rough estimate of how many tiles are needed, multiply the size of the roof (in metres squared) by the roof covering capacity (see chart below).
So, for example, the calculation for a 100m² roof covered in Marley Acme tiles would be:
100x60=6,000 tiles
| Marley roof tile sizes and covering capacity | ||||||
|---|---|---|---|---|---|---|
| Product | Material | Type | Tile size (mm) | Minimum headlap (mm) | Maximum gauge (mm) | Roof covering capacity (tiles/m²) |
| Acme | Clay | Plain | 265 x 165 | 65 | 100 | 60 (100mm gauge) |
| Ashdowne | Clay | Handmade plain | 265 x 165 | 65 | 100 | 60 (100mm gauge) |
| Canterbury | Clay | Handmade plain | 265 x 165 | 65 | 100 | 60 (100mm gauge) |
| Eden | Clay | Pantile | 342 x 247 | 72 | 270 | 17.2 (72mm headlap) |
| Hawkins | Clay | Plain | 265 x 165 | 65 | 100 | 60 (100mm gauge) |
| Lincoln | Clay | Interlocking pantile | 370 x 247 | 75 | 295 | 15.3 (75mm headlap) |
| Anglia | Concrete | Interlocking pantile | 387 x 230 | 75 | 312 | 15.7 (75mm headlap) 17.1 (100mm headlap) |
| Ashmore | Concrete | Plain | 267 x 333 | 77 | 190 | 17.5 (77mm headlap) 19 (92mm headlap) |
| Double Roman | Concrete | Double Roman | 420 x 330 | 75 | 345 | 9.7 (75mm headlap) 10.4 (100mm headlap) |
| Duo Edgemere | Concrete | Inerlocking slate | 420 x 330 | 75 (22.5° and above) 100 (below 22.5°) |
345 | 9.7 (75mm headlap) 10.5 (100mm headlap) |
| Duo Modern | Concrete | Interlocking | 420 x 330 | 75 | 345 | 9.8 (75mm headlap) 10.6 (100mm headlap) |
| Ecologic Ludlow Major | Concrete | Interlocking | 420 x 330 | 75 | 345 | 9.8 (75mm headlap) 10.6 (100mm headlap) |
| Concrete | Interlocking | 420 x 331 | 75 (22.5° and above) 100 (below 22.5°) |
345 | 9.7 (75mm headlap) 10.5 (100mm headlap) |
|
| Ludlow Major | Concrete | Interlocking | 420 x 330 | 75 | 345 | 9.8 (75mm headlap) 10.6 (100mm headlap) |
| Ludlow Plus | Concrete | Interlocking | 387 x 230 | 75 | 312 | 9.7 (75mm headlap) 10.5 (100mm headlap) |
| Mendip | Concrete | Interlocking double pantile | 420 x 330 | 75 | 345 | 9.7 (75mm headlap) 10.5 (100mm headlap) |
| Modern | Concrete | Interlocking | 420 x 330 | 75 | 345 | 9.7 (75mm headlap) 10.5 (100mm headlap) |
| Plain | Concrete | Interlocking | 267 x 165 | 65 | 100 | 9.7 (75mm headlap) 10.5 (100mm headlap) |
| Riven Edgemere | Concrete | Interlocking slate | 420 x 330 | 75 (22.5° and above) 100 (below 22.5°) |
345 | 9.7 (75mm headlap) 10.5 (100mm headlap) |
| Wessex | Concrete | Interlocking | 420 x 330 | 75 | 345 | 9.7 (75mm headlap) 10.4 (100mm headlap) |
If the roof specification differs from the standard details (for example, batten gauge or headlap are different), please contact our technical team for advice.
Other types of tiles
When calculating how many roof tiles are needed for a project, be sure to also consider the other types of tiles that are required to complete the roof.
For example, there are hip and valley tiles, verges, angle tiles, ridges, stop ends and ventilation tiles. These products are available in a variety of colours, materials and designs to ensure compatibility with your roof tile of choice.
Roof tile sizes, amounts and other specification advice from Marley
As experts in roof tiles, Marley offers a complete roofing system with everything you need to build a safe, secure and attractive roof - and our products are backed by a market-leading warranty and excellent technical support
Our integrated solar roof tiles measure 1000x1686mm. They can be installed in a landscape or portrait orientation and are easily combined using patented push-fit technology to create solar arrays of any shape and size. As well as this, the industry leading 5mm panel spacing and hidden fixings give a high-end, sleek aesthetic to your solar roof.
Category: Clay Concrete Environmental Roofing