Metecno Sandwich Panel Roofing Sheets
Metecno is a well known name in the sandwich panel roofing sheets domain. The company was established in India in 2005. The company manufactures roofing sheets / panels, wall panels, insulated panels and cold storage doors. It has a presence in more than ten countries including India. Metecno products are backed by professional service. One of Metecno’s products is the sandwich panel roofing sheet.
What are Sandwich Panel Sheets?
Also known by the generic name of PUF sheets, sandwich panel sheets are prefabricated single pieces of rigid polyurethane foam sandwiched between two metal sheets. The PUF is glued to the metal sheets, providing an insulating effect. While sandwich panel roofing sheets are popular, they also find application in walling.
Metecno’s sandwich panel consists of two facings of relatively thin metal sheets. To suit roofing needs, the core is of appropriate strength but is still light weight. It has sufficient stiffness in a direction normal to face of the panel. The core is made of durable polyurethane. The facings are of steel or aluminium, making the roofing durable. Metecno sandwich panel sheets are available thickness ranging from 30 to 120 mm. They are available in widths of 1000 mm to 1200 mm. The maximum length of each panel is 15 metre.
Because of its construction, Metecno sandwich panel sheets have an inherent advantage over normal panels used for roofing. They include:
- High load bearing capacity at low weight
- Excellent and durable thermal insulation
- Absolute water and vapour barrier
- Excellent air tightness and free of thermal bridges which results in considerable energy savings.
- Surface finished facings providing resistance to weather and aggressive environments
- Capacity for rapid erection without lifting equipments; easier installation in hostile weather conditions
- Easy repair and replacement in case of damage
- Long life and very low maintenance cost
- Good sound insulation
- Reasonable fire reaction and resistance
Table of Safe spans
Metecno guarantees the values of the external face in steel, 0.5 mm thick, and internal face in steel, 0.4 mm thick or with both faces in aluminium 0.6 thick with external face in aluminium, 0.6 mm thick, and internal face in steel, 0.5 mm thick. The spans per metre as a function of a uniformly distributed overload P (kgf / m2) have been obtained from load tests carried out in Metecno laboratories, and provide a deflection f <= l / 200 with a safety coefficient that complies with the UEAtc standards for insulated panels, which have been established and are implemented by primary European Certifying Organizations.
With external and / or internal steel thickness inferior to the above mentioned ones, the guarantee on the admissible loads for the spans indicated in the table is maintained, while it is not maintained on the deflection limit and the safety coefficient.
Metecno has many sandwich panel roofing sheet profiles. At Mamata, we are their stockists for the Glamet roofing panel and the Mono roofing panel.
Metecno Glamet Sandiwch Panels
These CFC free traditional roofing sheets use self supporting polyurethane insulation material for pitched roof. While it is meant to work for slopes of 7% or more, it is possible to use Metecno Glamet for slopes less than 7% with expert technical advice.
Metecno Glamet sandwich panels use a high tensile base metal which is coated with Zinc and Aluminium ally. This makes the roofing sheets durable. In addition, the exterior side of the panels is coated with a micro layer of polyster primer. This makes Metecno Glamet resistant to water absorption. The PUF core gives it high thermal resistance.
Metecno Monoroof Centesimal
Just like Glamet, the Metecno Monoroof Centesimal too is considered a traditional roof. It has an external steel face and an internal face made of centesimal aluminium. Sandwiched between these two panels is sturdy self supporting polyurethane. These pitched roofs need a minimum slope of 7%, but it can be used for lesser slopes as well – with the advice of an expert technical person. The side of the panel has a surface finish manufactured from aluminium foil that has a thickness of 0.08 mm.