Technical knowledge
There is no single build-up. The composition depends on the deck, the pitch, the tile and the thermal performance required.
System options
We assess the existing structure and choose the right system. Each card uses the build-up and the terminology of the system we install.
BMI system
New build and rehabilitation, dry installation
Dry-laid, micro-ventilated roof. Clima Pro panels interlock and the batten already sets the tile spacing.
Build-up
High energy performance, including Passivhaus
Clima First PIR panel, with film and adhesive built in, for a continuous layer without thermal bridges.
Build-up
Low-pitch roofs
A watertight build-up when the tile alone cannot keep water out. Minimum pitch 10% / 6°.
Build-up
Umbelino Monteiro system
New build and rehabilitation with crossed battens
Rigid insulation, EDILIANS waterproof breathable membrane, counter-battens, battens and clay tiles. Variant with corrugated underlay and simple battens.
Build-up
Insulation with integrated metal battens
Neopor EPS panels with integrated battens (370 or 395 mm). They need a continuous deck and a membrane under the panel.
Build-up
Self-supporting panel, new build or rehabilitation
Closed-cell polyurethane panel, faced with heat-reflecting aluminium, with a perforated metal batten.
Build-up
Onduline system
Rehabilitation with Lusa, Marseille, flat or wide canal tiles
Corrugated underlay for tiles that need a batten, or canal tiles 18.5 cm wide or more. Minimum pitch 15%.
Build-up
Canal tiles narrower than 18.5 cm
The underlay corrugations align a narrow canal tile. The tile is held with clips or Onduflex.
Build-up
Lightweight covering without clay tiles
A lightweight roofing sheet. It is not an underlay under ceramic tiles: it is the covering itself.
Build-up
We assess the existing structure and define the right system for your works.
