Rafters Interlocking Tiles Wall plate Fascia board Barge board fixed ceiling joists Fascia board Barge board fixed to gable ladder - both optional

Roofing felt draining into gutter Tilting fillet to prevent felt from ponding Perimeter tiles are usually nailed or clipped. Fibre cement under-cloak Concrete interlocking tiles. Flat tiles, like these, can often be laid with staggered joints or straight joints.

Some interlocking tiles can be laid to very shallow pitches. Tiles at ridge, eaves and verge are usually nailed down or clipped. Ventilation can be provided in a variety of ways (see Ventilation) Ridges and verges can be ‘mortared’ or ‘dry fixed’. Verge with mortar pointing Verge tiles may need clipping depending on roof slope and exposure Modern dry verge system

Felted roof ready for interlocking tiles Felt lifted back showing tilting fillet. Strip of DPC has been used to extend felt into gutter - strictly speaking some felts should not be used externally, they become brittle in sunlight and are easily damaged by birds. Plywood barge board and fascia board