[Greenbuilding] attic insulation in Seattle house

Sacie Lambertson sacie.lambertson at gmail.com
Thu Nov 10 18:13:46 PST 2011


All, I would appreciate advice.  I am going to Seattle to help our son
install insulation in an unconditioned attic in a 1906 house that has been
completely upgraded with insulation everywhere except the attic.  (As an
aside, I was amazed to find in Seattle NO pre-50s houses on the market had
attic insulation and most had none in the walls either--pretty amazing).

We plan to carefully seal any openings between the conditioned space below
and the attic, then blow in however much cellulose we need.

J. Listiburek is quite adamant about the need for a wash of air via
continuous soffit ventilation when insulating this way.  But no one in the
Seattle marine climate has continuous soffits vents.  What is our
alternative?  What else should we be concerned about?  Ice dams btw are not
a problem in Seattle.

L. doesn't like one to store anything in the attic either, but if one has
walk-in space up there, why not?  What are the considerations here?

Thanks,  Sacie
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