Ribbed sheets

Coverib 850

Ribbed metal sheet. Manufactured with multilayer technology.

Coverib 850 is the 5-rib corrugated metal sheet manufactured with multilayer technology. Its strength lies in thermal and acoustic insulation, as well as its wide versatility of use. It ensures the durability of the metal covering.

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Coverib-850, Ondulit, Lastra metallica, lastra metallica multistrato, lastra grecata

Distinctive features of Coverib 850

ondulit italiana icona insonorizzazione acustica

Acoustic soundproofing

ondulit italiana icona alta resistenza alla corrosione

High corrosion resistance

ondulit italiana icona comfort termico

Thermal comfort

ondulit italiana icona resistenza meccanica

Mechanical strength

ondulit italiana icona versatilità



The roofing system ensures the following performances:


Concentrated loads resistance:

Steel thickness 0,5: 1,2 kN span 1,80 m

Steel thickness 0,6: 1,2 kN span 2,30 m

Steel thickness 0,8: 1,2 kN span 2,60 m

EN 14782 Appendix B

Reaction to fire:

Class B-s1, d0

UNI EN 13501-1; EN 13823; EN ISO 11925-2

Fire performance from outside:

Class BRoof T3

UNI EN 13501-5; UNI CEN/TS 1187

Durability – Salt spray resistance:

4000 hours

UNI EN 14782 – Appendix A; ISO 9227

Durability – Humidity resistance:

3000 hours

UNI EN 14782 – Appendix A; EN ISO 6270-1

Durability – SO2 resistance:

45 cycles

UNI EN 14782 – Appendix A; EN ISO 6988

Sound insulation:

28 dB

UNI EN ISO 10140-2:2010

Sound deadening – noise generated by driving rain:

ISTEDIL cert. N°1302/202-G 1302/202-C

8,41 times higher than a mm Lu = 0,7785 mm thick aluminium sheet

4,17 times higher than a sandwich panel with 40 mm insulation

52,3 dB

UNI EN ISO 140-18

Thermal transmittance:

1,07 W/m2K

ISO 6946; ISO 13786

The version with the underside in Natural Aluminum

Solar Reflectance Index (SRI):

External surface:

Natural aluminium surfacing (N) 107%

Colored Aluminum:

Off White RAL 9002 (W) 73%
Grey RAL 7023 (GR) 42,6%
Terracotta RAL8004 (T) 37,6%
Blue (B) 37,3 %
Medium Green (VM) 35,6%
Red RAL 801 (R) 35,2%
Slate Grey RAL 7012 (D) 34,3%
Oxide Red RAL 3009 (S) 33,4%
ASTM E1980-11

Coverib 850

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Reliability, versatility, and comfort.

The multilayer sheet Coverib 850 is suitable for any construction context and seamlessly integrates into even the most demanding architectural designs. It is customizable in finishes and certified BRoofT3. Moreover, it allows perfect integration with photovoltaic systems through the use of the Easyfix system. Coverib 850 is a Cool Roof metal sheet, thanks to its high solar reflectance coating on the outer surface.