BE1012910A6 - Thermally and acoustically insulating self-supporting roof panel - Google Patents

Abstract

Self-supporting roof panels are quick to install given that they areprefabricated in a factory, compared with a conventional roof underlay.Although they offer satisfactory thermal insulation, current self-supportingroof panels are not effective in terms of acoustic insulation. The inventedproduct allows the acoustic insulation of roof panels to be increased byabout 10 decibels by using and providing specific materials in constructingthe panel: inner (or lower) surface: an agglomerated panel or plaster panel(p1); intermediate volume: a thickness of slag wool protected by a sealingfoil placed on the inner side (p2); external (or upper) surface: anagglomerated panel (p3). The advances made will have ever increasingimportance in the future given the increase in noise pollution caused byhuman activity.<IMAGE>

Description

       

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    The present invention relates to a self-supporting and insulating roofing panel which is prefabricated in the factory and then assembled on site, thereby saving time compared to a traditional type of roofing construction.



  The state of the art of this type of panel consists in adhering a layer of insulation to a chipboard or plaster panel, this assembly is then stiffened by longitudinal rafters, which makes it possible to manufacture panels having a large span. On the outer surface of the panel are then added counter-laths which are put the tiles.



  Products of this type which are currently found on the market use insulators such as expanded or extruded polystyrene or mineral wool.



  These panels thus allow good thermal insulation comparable to the insulation of non-prefabricated roofing.



  However, these panels have the drawback of very poor sound insulation (between 30 and 35 decibels) because they are not designed to attenuate exterior and interior noise. The outside sounds are easily transmitted by the panels inside because the panels vibrate like a speaker membrane.



  The interior noises are propagated in the other parts of the dwelling by these panels because of their rigidity and their juxtaposition.



  To alleviate this problem, the self-supporting panel claimed by the present invention uses the same technique but with some nuances in the arrangement of the materials.



  It is also a question of making a layer of insulation adhere to a plasterboard, this assembly being stiffened by longitudinal rafters.

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  However, the insulating material used is composed, in the proposed invention, of mineral wool (glass or rock wool) with a sheet of sealing material.



  In addition, a second rigid agglomerated panel is nailed and / or glued to the rafters, exterior side (upper surface). (cf. fig. 1) The proposed invention makes it possible to increase the sound insulation by approximately 10 decibels compared to normal self-supporting panels, thereby obtaining an attenuation of 40 to 45 decibels, since the use of two rigid panels between which mineral wool is used to attenuate the transmission of different sounds.


    

Claims (1)

Claims: The use of three successive panels in the manufacture of insulating and self-supporting roofing panels: - interior (or lower) surface: a chipboard panel or plasterboard; - intermediate volume: a thickness of mineral wool protected by a sealing sheet placed on the inside; - external (or upper) surface: an agglomerated panel. The use and arrangement of these materials as described above and in Figure 1 constitutes the novelty.