Tile battens must be treated at the verge, including dry fix systems.

Placing the already treated end of the batten at the verge and placing the cut end of the batten within the roof.

With dry fix systems at the eave tile require an additional fixing, with;

A screw and plug into the masonry.

An additional piece of timber fixed to a minimum of 3 trusses can be used.

Verge tiles must be aligned with cut pieces not less than 150mm wide.

Use tile and half where available from tile manufacturer.

Proprietary verge clips should be used at gables when required e.g. with ‘Forticrete’ SL8 roof tiles, in conjunction with the dry fix system.

Dry verge eaves caps should be provided where applicable to prevent vermin entry.

The installation of the guttering and downpipes must not displace the dry verge section at the eaves tile.

When constructing a wet verge using mortar, it is good practice to use bed reinforcement to enhance the performance of the verge.

In this example, ‘Expament’ bed reinforcement has been fixed to the battens.

When bedding tiles or slates in mortar, the mix should be 1:3 cement:sand with plasticiser.

The mix should be based on the use of sharp and soft sand with at least 1/3 sharp sand content.

Cement mixer should be used with equal measurement.

Proprietary mixes may be acceptable where they are shown to have similar strength, durability and workability.

Under cloak should project the gable by 38mm – 50mm when using plain tile or slates.

30mm – 60mm when using interlocking tiles.

A minimum of 100mm depth of concrete when compressed with the mortar struck and pointed when green using the same mix.

Pointing should be neat without excessive mortar on the tiles or slates.