thermal insulation

(open and closed cell)

COMPARISON

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thermal insulation

(Open And Closed Cell)

COMPARISON

Closed

-cell

Highest insulating “R-Value” per
inch (>6.0)

Low vapor permeability

Air barrier

Increases wall strength

Resists water (is a WRB “water
Resistive Barrier”)

Absorbs sound, especially bass
tones

-

Approved by FEMA

OPEN

-cell

Good insulation value (R=3.5)

Higher vapor permeability, but
controlled

Air barrier at full wall thickness

-

-

Best sound absorption in normal
noise frequency ranges

-

Approved by FEMA

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