Corrugated sheet


Corrugated metal sheet. Manufactured with multilayer technology.

Ondulit is the corrugated metal sheet with multilayer technology. It is resistant and durable over time. The sinusoidal profile simplifies its installation on concave and convex curved surfaces. It is a certified Cool Roof metal sheet with BRoofT3.

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Distinctive features of Ondulit sheet

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 versatilità


ondulit italiana icona durabilità



The roofing system ensures the following performances:


Concentrated loads resistance:

ON5 1,2 kN span 1,35 m

ON6 1,2 kN span 1,80 m

ON8 1,2 kN span de 2,00 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 – EN ISO 6270-1

Durability – SO2 resistance:

45 cycles

UNI EN 14782 – 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


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The timeless corrugated profile, reliable with multilayer technology.

The multilayer corrugated metal sheet Ondulit finds extensive application in building roofs in urban areas, historical contexts, and industrial archaeology. The symmetry of its profile provides a harmonious aesthetic impact. Its ability to curve both concave and convex surfaces makes this sheet particularly versatile. Ondulit is an excellent substitute for asbestos without compromising the acoustic characteristics of indoor spaces. It is a Cool Roof corrugated metal sheet, thanks to its high solar reflectance coating on the outer surface. Moreover, it allows seamless integration with photovoltaic systems through the use of the Easyfix system.