Multilayer self-supporting curved roof

The self-supporting multi-layer curved roof is composed of several corrugated profiles, with the inner support profile fixed directly on the main structure, without the need for a secondary structure.

The multi-layer self-supporting curved roof is made up of a non-self-supporting curved profile for the exterior cladding, which acts as a sealing element, and an interior self-supporting curved profile that performs the load-bearing function. Both profiles are fixed to each other using the separator profile, which maintains the necessary distance to accommodate the insulation and vapor barrier. Its main function is to provide a watertight closure in constructions that require thermal conditioning of the interior. The curvature of the ribbed profile is achieved by means of a series of equidistant inlays that, like small folds, give it the necessary curvature.

The curved external cladding profile will comply with the mechanical requirements specified in the project and, in addition, will guarantee the water tightness of the roof. The self-supporting curved profile will meet the mechanical requirements specified in the project and will also guarantee the watertightness of the roof. This self-supporting profile will be installed on the main structural structure, which is generally composed of metal, concrete or wooden frames. The main advantage of this system is the elimination of the secondary structure or purlins, since the support profile can reach spans of up to 22 meters between supports, as is the case of the INCO 155.3 profile. By dispensing with the secondary structure, the installation performance of the roof is considerably improved.

Acoustic improvement

In those enclosures where improved acoustic comfort is required, solutions with the curved micro-perforated interior support profile can be used to increase the acoustic absorption of the roof. These perforations can be made in the webs of the profile in profiles with a large depth, or throughout its surface in profiles with a reduced depth. Typically, R5T8 type perforation is used for core perforations and R3T6 type for full surface perforations.

Range of lights

The support spacing of the curved roof is determined by the profile rib height. Each curved profile has a range of spans or support spacing for which it is the most efficient solution, according to the following table:

PROFILE	SCREW HEIGHT (mm)	LIGHT RANGE (m)
INCO 44.4 Bending	44	2 – 7
INCO 44.6 Curved	44	2 – 7
INCO 70.4 Bending	70	6 – 13
INCO 100.3 Bending	100	8 – 18
INCO 155.3 Bending	155	10 – 22

The main advantages of the simple self-supporting curved roof are:

Guaranteed tightness: The cover solution using a single curved piece ensures tightness.
High durability: The cover material can get a warranty of up to 30 years.
Good fire performance: All roofing materials can be classified as A1.
Zero maintenance: No maintenance required, which reduces long-term costs.
Speed of execution: The different layers of the cover are ready for installation, speeding up the process.
Efficient water evacuation: The water is evacuated to the outside of the vault.
Efficient transportation: The dimensions of the pieces adjust to conventional transportation on decks of up to 13 meters.
Aesthetic improvement: Provides a more attractive aesthetic finish compared to gable roofs.