Sistem de montaj pentru TIGLA cu 10 panouri fotovoltaice, latime <116 cm

On a tile roof nothing is drilled into the covering. A few tiles are lifted one at a time, stainless steel hooks are fixed into the wood underneath, and these come out under the row of tiles above, which is put back. Aluminium rails are mounted on the hooks, and the panels on the rails. The roof remains, in practice, exactly as it was.

The set is sized for 10 modules with a width of up to 116 cm, that is the usual residential panel format; the width matters because it sets the distance between the rails, their length and implicitly the number of hooks and profiles in the set. As an order of magnitude, 10 modules mean a domestic installation of about 4-5 kW. The hooks are adjustable in one or more directions, which allows correcting the unevenness of the roof, so that the row of panels comes out straight even if the tiles are not perfectly in plane. The clamps accept frames of 30-42 mm, so panels from any manufacturer, and the installation can be done in one or two rows.

Anchoring with stainless steel tile hooks, fixed with wood screws directly into the rafters or into the supporting battens; the hook comes out under the upper row of tiles, without stressing the tile, with light machining of the covering tile where necessary in order to avoid tilting. Longitudinal aluminium rails with a T-type channel, adjustable mid and end clamps for frames of 30-42 mm, tightening with M8 bolts and channel nuts. The stainless steel - aluminium combination avoids the galvanic couple with the module frame. The number and positioning of the hooks, as well as any doubling in the edge and corner zones, are established according to the wind and snow loads specific to the site and to the section and spacing of the rafters.

Who it suits

Suitable for a house with a ceramic or concrete tile covering and a wooden roof frame, with standard width panels, below 116 cm.

Terms explained

• Tile hook: A hook-shaped metal part, fixed into the wood under the tile, which comes out under the tile above and supports the panel rail.
• Supporting batten: A wooden strip nailed transversally across the rafters, on which the tiles are hung.
• Galvanic couple: The corrosion that appears when two different metals stay in contact in the rain; stainless steel with aluminium forms a safe pair.

Technical specifications

Recommended applications

• Residential photovoltaic systems of about 4-5 kW on houses with tile covering
• Roofs with a wooden frame and supporting battens
• Installations where preserving the integrity of the tile covering is mandatory
• Installation with standard width modules below 116 cm, in one or two rows

Technical details

Generic product — standard specifications

Structure kit for pitched roofs covered with ceramic tile or concrete tile, sized for 10 photovoltaic modules with a width of up to 116 cm. The width limitation is relevant for the sizing of the kit: the module width determines the spacing between the longitudinal rails and their total length, therefore also the number of hooks and profiles included in the set.

Anchoring is achieved with stainless steel tile hooks, fixed with wood screws directly into the rafters or into the supporting battens, under the tile. The hook comes out under the upper row of tiles, without stressing the tile itself; if needed, the covering tile is lightly machined in order to avoid tilting. The usual hooks are adjustable in one or more directions, which allows compensating the irregularities of the roof plane and correctly aligning the rails.

The longitudinal aluminium rails with a T-type channel are mounted on the hooks, and the modules are fixed with mid clamps and adjustable end clamps, suited for frames 30-42 mm thick, tightened with M8 bolts and channel nuts. The combination of stainless steel for the hooks and aluminium for the rails and clamps avoids the galvanic couple with the module frame and ensures durability over the entire service life of the installation.

The number of hooks, their positioning and any doubling in the edge and corner zones are established according to the wind and snow loads specific to the site and to the section and spacing of the rafters.