ECOply Concrete Tile Roof System

Suitable for typical roof tiles of mass 46kg/m2 to 54kg/m2 in a curved to flat profile.

15mm tongue and grooved ECOply is placed directly over the rafters or trusses with the face veneer perpendicular to the rafter direction. The butt end joints must be supported. They should be over the rafter edges or where free ends are unavoidable, over a nogging running between the rafters at not less than 70mm x 35mm set flush to the top of the rafter can be used. Each panel must be continuous over more than one span.

Fixing of the ECOply to the rafters is as for fixing of ECOply flooring as detailed in AS 1684 Residential Timber Framed Construction Standards. The fixing requirements are repeated below.

Nails and screws shall be spaced at 150 mm centres at panel ends and at 300 mm centres at intermediate rafters and noggings. ECOply should not be fixed less than 10 mm from edges.

Roof Tile

Concrete roof tiles shall be of various profiles in accordance with AS 2049 and vary in mass from 46kg/m² to 54kg/m². The tile profile can vary from curved to flat profile provided the gap requirements of AS 2049 are met. Sarking is applied over the entire roof system under the tile battens.

Insulation

At the interface between the anti-ponding 16mm fire grade plasterboard which has been attached to battens, a cavity closure insulation of Fibretex 650 Rockwool positioned at the roof/fascia interface.
The Rockwood is to be a minimum of 100mm wide by and 115mm thick and installed between 120mm and 300mm from the fascia.

A flexible fire grade sealant such as Bostik, Fireban One at the junction of the fascia and anti-ponding board and also eaves/facia wall junction of the plasterboard.