Edgemere interlocking slate is a large format concrete roof covering with a thin leading edge for a slate like appearance.
Low pitch plain concrete roof tiles.
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For more information see our blog post on batten spacing for roof tiles.
It is uncommon to find a roof below 15 but for those very low pitch applications there are interlocking clay pantiles available suitable for use down to 12 5.
Previously it was accepted that 35 was the lowest recommended pitch for both concrete and clay variants of the tile.
Types of tile recommended pitch.
With the introduction of machine made clay tiles this has now dropped slightly to 30 similar to the marley hawkins single camber tile.
Low pitch roof tiles are thought of as those that are suitable for laying on roofs at 20 degrees or less.
As a general rule 15 is the minimum pitch for concrete tiles which has decreased from the original recommended level of 20.
Melodie clay single interlocking pantiles have a flexible gauge.
Decra classic these are coated zinc aluminium galvanised steel tile panels with the appearance of traditional concrete roof tiles.
In most instances 35 will be the minimum pitch for plain concrete tiles which is another reason why the material is the preferred choice for those who use them regularly.
They can be used at pitches as low as 12 5 degrees with a headlap of 92mm with rafter lengths up to 6 metres.
This means many of the tiles previously used on low pitched roofs for purely aesthetic reasons have improved in functionality.
Clay single camber plain tiles can pitch down to 30 manufacturer dependant although the vast majority available have a limit of 35.
Concrete tiles and slates for low roof pitches.
Forticrete centurion to my knowledge 10 is the absolute lowest you can achieve with a concrete tile and the forticrete centurion is the only one tested at this low pitch.