Patent ID: 9580905
Date: 2017-02-28
CPC Classifications: E04B,E04C,E04F

Claim:
1. An insulating panel having a top face and a bottom face opposite the top face, comprising a body made of stone wool with a part of substantially uniform first density and a part of substantially uniform second density, different from the first density, at least one profiled groove being formed in said insulating panel starting from the top face, the top face being made of stone wool, the groove being formed in the stone wool, the number of grooves being less than or equal to three for 60 cm of a dimension of said panel perpendicular to the direction of the grooves, wherein the groove has a depth of from 0.5 to 6 cm, and wherein the first stone wool density is from 100 to 300 kg per cubic meter and the second stone wool density is from 60 to 120 kg per cubic meter.