A lot of the attics in my area are being insulated with loose-fill cellulose, which is typically piled much deeper than the framing. What’s the best way to move around in this kind of space, and will disturbing the cellulose damage its R-value?

A.Michael Uniacke, an insulation and hvac contractor in Prescott, Ariz., responds: The answer to the first part of your question is “very cautiously.” If possible, I grab an overhead truss or rafter before stepping onto the buried framing. In addition to making it much easier to keep your balance, that centers you in relation to the framing and...

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