Foam Insulation 2.0

Dense pack cellulose insulation from exterior redwood siding

First we removed the redwood siding and the middle section of the brown fiber board. Then we pulled out the old fiberglass insulation batts. Fortunately they were stapled on the inside of the stud instead of the face of the stud - so they pulled out without too much trouble.

After putting the fiber board back we drilled our 2 inch hole and dense packed with cellulose insulation. There were several small cavities such as where an interior wall meets the exterior wall as well as the corner framing that had no fiberglass insulation at all. By adding cellulose we increase our r-value to near 4.0, we greatly reduce air flow in the stud cavity and we do not have to air seal the exterior wall top plates (the cellulose seals the stud cavity from the inside). This is a low pitch roof ranch and there is just no way to air seal the exterior wall top plates from the inside. Its difficult to even reach the top plate from the attic much less get a foam gun pointed in the correct spot.

Duration : 0:4:6

What are some cheap wall insulation materials that mice, rats, and rodents are less likely to nest it?

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