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Structural Insulated Panel R-value comparison

Raw R-values

Panel Thickness

(inches)

ACME Panel R-values Stick built w/ fiberglass insulation ACME advantage
4.5 16 12 34%
6.5 24 19 29%
8.25 32 25 26%
10.25 40 32 25%
12.25 48 38 27%

Whole wall R-values — highest-quality fiberglass install (not typical on a jobsite)

Wall Thickness

(inches)

ACME Panel R-values Stick built w/ fiberglass insulation ACME advantage
4.5 14 10 43%
6.6 21 14 53%
8.25 27 18 53%
10.25 34 22 58%
12.25 41 25 61%

Whole wall R-values — typical jobsite install (some rounded corners, compression, gaps, etc.)

Wall Thickness

(inches)

ACME Panel R-values Stick built w/ fiberglass insulation ACME advantage
4.5 14 8 78%
6.6 21 11 91%
8.25 27 14 91%
10.25 34 17 97%
12.25 41 20 101%
  • But ACME Panel SIPs are better still at energy savings!
    Air Infiltration — Comparative tests done by Oak Ridge National Laboratories show that a 2,600 sqft. house made out of SIPs was 5 times more airtight than an identical house made with traditional framing and fiberglass.
  • REMEMBER: Fiberglass R-values go down as temperatures go down
    Studies conducted by the Department of Energy show that fiberglass insulation in an attic rated at R-19 performed at R-9 when temperatures outside dropped to -8°F due to convective currents within the insulation.
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ACME PANEL  |  1905 West Main Street, Radford, Virginia 24141  |  Ph: 877.331.4266  |  info@acmepanel.com