<div dir="ltr"><div class="gmail_default" style="font-family:tahoma,sans-serif;color:rgb(39,78,19)"><p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span style="font-size:10pt;font-family:Arial,sans-serif">There is a wall
section in this project with 4” thick interior polyurethane spray foam inside
the metal studs.<span></span></span></p>

<span style="font-size:10pt;line-height:115%;font-family:Arial,sans-serif">Since Table A9.2B of ASHRAE
90.1 does not provide the effective insulation/framing layer R-Value for this
type of insulation, how can one calculate this value?<br><br>
Your thoughts and suggestions would be highly appreciated,<br>Morteza
</span></div><div class="gmail_default" style="font-family:tahoma,sans-serif;color:rgb(39,78,19)"><br></div><div><div class="gmail_signature"><div dir="ltr"><img src="https://lh6.googleusercontent.com/Uuukta80GuFfvKouzA0mdSvUXqml7MtSwSiw-evuGMU=w147-h43-p-no"><br><div><br></div></div></div></div>
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