APPLICATION AND STRENGTHS 
The sheets of the GRECA series are polycarbonate multiwall corrugated sheets with a honeycomb structure and a cover width of 1000 mm. Sheets have been developed for lateral overlaps to most insulated panels and/ or corrugated metal sheets available on the market. Designed for the installation of skylights both in single and multiple applications, thanks to the possibility of longitudinal and / or lateral overlapping, they are also available in thermocurved version (except GRECA 250/75), with bending radii of 3500 mm or 6000 mm. The side wing has a multiwall structure to reduce the problem of condensation. GRECA sheets have a good light transmission and, thanks to their coextruded UV protection, they guarantee a high degree of protection against UV rays, yellowing and hail damage. The corrugated shape provides good resistance to external loads (snow and / or wind), while the typical polycarbonate features provide excellent resistance to accidental shocks and temperature leaps. The system is completed by a range of accessories that complete the installation.

SPECIFICATIONS
Construction of flat or curved skylights (radii 3500 mm or 6000 mm) with polycarbonate multiwall corrugated sheets type GRECA 250/40, thickness 8 mm / 10 mm / 16 mm, honeycomb structure, coextruded UV protection on the external layer, thermosealing of heads; cover width of 1000 mm, length on request; estimated thermal transmittance Ug = 2,7 W/m2 K (for 8 mm thick.) / Ug = 2,5 W/m2 K (for 10 mm thick.) / Ug = 2,0 W/m2 K (for 16 mm thick.); ten-years limited warranty. The following accessories are available on request: PE spacer (upper
and / or lower), pre-painted metal half ridge, fixing screw (for metal supports only), aluminium caps, fiberglass head.

Construction of flat skylights with polycarbonate multiwall corrugated sheets type GRECA 250/75, thickness 12 mm / 16 mm, honeycomb structure, coextruded UV protection on the external layer, thermosealing of heads; cover width of 1000 mm, length on request; estimated thermal transmittance Ug = 2,3 W/m2 K (for 12 mm thick.) / Ug = 2,0 W/m2 K (for 16 mm thick.); ten-years limited warranty. The following accessories are available on request: PE spacer (upper and / or lower), pre-painted metal half ridge, fixing screw (for metal supports only), aluminium caps.