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For interior insulation of a wall, is it feasible and consistent to put 100 mm of wood wool on 70 + 10 expanded polystyrene? And a hygrovariable vapor barrier?

I am opposed to adding a new insulation on an old one. And I am even more reserved about the combination of two different types of insulation. You will not be surprised if I am very reluctant to put wool wood on expanded polystyrene... I do not see very well what you would do with a hygrovariable membrane in this configuration. Do you refrain from new layer of insulation on the previous.

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