Interlocking tiles and slates where the roof slope exceeds 6 metres in length and or the site is rated to be in a severe exposure category.
Minimum pitch for interlocking roof tiles.
There is always a demand to add some finesse to the design of a roof which is what clay material adds in abundance.
Double lap fibre cement slates where the roof slope exceeds 6 metres in length severe very severe exposure and 9 metres in length sheltered moderate exposure.
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.
In support of design possibilities and to ensure maximum penetration protection the best roof tile to use on minimum pitch roofs is a boral roof tile.
All tiles have a minimum roof pitch which is always stated in the manufacturers technical information.
There are a number of reasons why boral roof tiles are the best to use on minimum pitch roofs.
Best roof tiles for low pitch roofs.
Traditionally a minimum roof pitch of 20 was recommended in bs 5534 but modern tiles and slates have now been designed for applications as low as 15.
This minimum pitch is important if tiles are laid below the recommended minimum pitch there is an increased chance of water getting through which can damage the underlay and battens over a prolonged period.
The interlocking technology used on the koramic 401 flemish pantile allows it to go a fraction lower at 22.
Where the minimum pitch for clay pantiles used to be 30 tiles like the redland cathedral pantile can be pitched as low as 22 5.