Thin facing wall with improved acoustic properties has regularly distributed points with tips placed in same plan and not exceeding thirty percents of receiving surface

摘要

Elongated support has receiving surfaces and facings (49). Receiving surface has points regularly distributed. Point tips are placed in same plan and do not exceed 30 percents of receiving surface. Facings are in contact with the sections (20) constituting the support frame by means of projecting crests (28) formed on the sections' receiving faces.