Hello all,
New home inspector here; I came across an attic with Polystyrene Bead insulation mixed with fiberglass batts. In some areas the beads only were about 5” deep in others batts on top of beads. Googled to find R-value but didn’t turn up much; mostly poly beads are used in walls not in attics. Any ideas? Told client to contact an Insulation Company and have evaluated.

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