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tom tracy
Posted: May 17, 2006 11:52 AM
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building codes
New user.Does anyone have any info/figures or documentation to take to code enforcement regarding closed cell foam's ability to deliver a comparable R-factor at 2-4 inches in walls/ceilings to meet requirements. It seems that 6.4 inches to equal R-38 (at 6 per inch) for a ceiling is overkill and more money for the client that he should not have to shell out. It would also make closed more competitive. This is new technology and proof needs to be offered up and new codes written. Any thoughts/insights??? |
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Gerry Wagoner
Posted: May 19, 2006 04:05 PM
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The national Spec for a blast freezer is 3.5 - 4" of rigid foam. That feeezer is constantly maintained at 0° or less. Four inches is plenty of rigid foam in any kind of ceiling. As to technical data, contact Doug Commette or Mason Knowles. Jim Anderson from FE, or Roger Morrison from NCFI are also excellent sources for technical answers. gcw |
