fredag 31 oktober 2014

Light density

Light density decoupling material provides an air space separation between the
pipe or duct and the exterior barrier cladding. This decoupler material is
commonly specified to be light density fiber glass with a minimum of 1” (25 mm)
thickness. Thicknesses greater than 1” offer improved capabilities up to a
practical upper limit of approximately 2” to 3” (50 to 75 mm). The decoupler
material needs to be light and porous as it is the air trapped within the material
which serves the purpose of acoustically separating the wall of the pipe or duct
from the exterior barrier cladding. As an analogy, it is the air space between two
(2) panes of glass which provides the insulation properties of a window. Care
should be taken in the event that a pipe carrying steam or hot water is to be
wrapped to ensure that the temperature insulation capabilities of the decoupler
satisfy the project requirements.

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