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→Some Cautions
== Some Cautions ==
Finally, some cautions. Some complex isolation schemes were described abovefor the purpose of illustration, but you should keep the design as simple and robust as possible. For example:
* The performance of two mass panels isolated by a viscoelastic glue can exceed that of a limp mass, such as lead-loaded composite insulation. It may be feasible to use just ~R13 fibreglass with the mass panels.