Acoustic Aluminium Ceiling

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Update time : 2020-07-24 10:57:53

Benefits and Performance

Acoustics
Acoustics absorption properties are added to metal by perforating the metal ceiling, so that the sound waves can circulate
Common sense would say that more perforations with a larger diameter would make for better acoustic absorption.But this is not the case. In fact, the number of perforations make little difference to the absorption.Therefore, the choice of the number of perforations is essentially an esthetic one.
Ceilings an ideal surface
The ceiling is usually the largest single free surface in a room, and is the best suited to applying an acoustic treatment. To begin with, it helps to diminish sound reverberations

ACOUSTIC COMFORT
Metal’s capacity to absorb sound becomes essential when looking for greater acoustic comfort inside a building. A good acoustic ambience makes a space more comfortable, and is also conducive to peace of mind, work and healing processes
They also contribute to the phonic insulation of adjacent spaces

ACOUSTIC ABSORPTION
The acoustic absorption of a suspended ceiling corresponds to its capacity to reduce the reflected energy in order to reduce the reverberation time of the sound wave inside a room.

ACOUSTIC ABSORPTION INDEXES
The absorbent capacity of a ceiling is measured by
the a Sabin coefficient, calculated by frequency bands, as per EN ISO 354,
the weighted sound absorption coefficient αw, as per EN ISO 11654. This unique value simplifies the comparison of absorption performances between solutions.
These coefficients range from 0 (no absorption) to 1 (total absorption).

PLAFORMETAL ACOUSTIC METAL CEILINGS
Plafometal has developed a complete range of metal ceilings to meet all kinds of acoustic needs

The ALPHA offer absorbs up to αw = 0.85 (class B), making it much easier for occupants to understand one another. Ideal for passageways.
The ALPHA PLUS offer guarantees absorption of up to αw = 1, for optimal acoustic comfort.

The ALPHA and ALPHA PLUS offers make offices, classrooms and hospitals much quieter places.

LIGHT REFLEXION

With light reflection indexes up to 87% of unperforated versions and up to 79% for perforated versions, Plafometal’s metal ceilings reflect the incident daylight, helping to add more natural light and to reduce needs for artificial lights.

PROTECTION AGAINST CORROSION

INDOOR INSTALLATION

Products must be installed in accordance with DTU 58-1 code of practice.
If metal ceiling systems are installed over large surface areas and are subject to high variations in temperature, steps must be taken to address thermal expansion in the materials, such as installing appropriate expansion joints.

Corrosion protection according to EN 13964:

Class B (varying relative humidity up to 90%, varying temperature up to 30°C, but without corrosive pollutants): all our solutions made from standard steel.
Class C (relative humidity up to 95%, varying temperature up to 30°C and accompanied by a risk of condensation, but without corrosive pollutants): all our non-perforated solutions made from standard aluminum and our PM300-6HR system of clip-in panels on concealed carriers made from high-strength steel. In case of perforated panels, contact us for a specific analysis.
Class D (more severe than the above - chlorine environments): stainless steel must not be used (the PM300 system of clip-in panels on concealed carriers is incompatible); contact us for a specific analysis.

INDOOR lacquered steel ceilings

Plafometal range			Corrosion resistance	Exposure classes according to EN 13964
Product range	Material grade(mechanical and coating strength)		Steel category	Class	Relative humidity	Temperature variation	Risk if condensation	Presence of corrosive pollutants
	If non-perforated	If perforated	C2	B	Up to 90%	Up to 30℃	No	No
All products	Standard	Standard	C3	C	Up to 95%	Up to 30℃	Yes	No
Linear panel	High strength	Contact us for a specific analysis	C4	D

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