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R-30 insulation in a ceiling framed with 2x8's
R 30 Insulation in Walls - DIY Home Improvement Forum
Rigid Insulation Installation (R-30) - DIY Home Improvement Forum
R30 ceiling insulation with 2x4 roof trusses - DIY Home …
Does rigid, thin R30 insulation exist? - DIY Home Improvement …
Attic Conversion - Requires R30 insulation on ceiling
Vapor barrier + floor insulation on shed/office
What R-Value Insulation is This? - DIY Home Improvement Forum
Smell and dust in house after cellulose ins. added to attic!
Is R30+ possible in a 2x6 Exterior wall for Canadian winters?