Apparatus and method for determining density of insulation

E - Fixed Constructions – 04 – B

Patent

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E04B 1/76 (2006.01)

Patent

CA 2540530

An apparatus (30) for determining the density of insulation (20) in a cavity (14) of a structure (10) that senses a force of the insulation against the sensor. The force is used to determine the density of the insulation, which, in turn, is used to determine the thermal resistance or R-value of the insulation. The apparatus may include a fixture (40) for supporting the sensor and holding the sensor in the substantially fixed position. A method for determining the density of loose-fill, blown-in-place insulation in a wall cavity by the use of a sensor is that measures a force exerted on the sensor by the insulation. The measured force is used to determine the density of the insulation. The thermal resistance of the insulation is determined from the known cavity depth and insulation density.

L'invention concerne un appareil (30) destiné à déterminer la densité d'un isolant (20) dans une cavité (14) d'une structure (10) qui détecte une force de l'isolant contre le capteur. La force est utilisée afin de déterminer la densité de l'isolant, qui, à son tour, est utilisée afin de déterminer la résistance thermique ou la valeur R de l'isolant. L'appareil peut comprendre un montage (40) destiné à supporter le capteur et le maintenant dans une position sensiblement fixe. L'invention concerne également un procédé destiné à déterminer la densité d'un isolant à bourrage lâche, injectable dans une cavité murale par utilisation d'un capteur qui mesure une force exercée sur le capteur par l'isolant. La force mesurée est utilisée afin de déterminer la densité de l'isolant. La résistance thermique de l'isolant est déterminée à partir de la profondeur de cavité et de la densité d'isolant connues.

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