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Table C402.4 <br />Building Envelope Fenestration <br />Vertical Fenestration <br />Maximum U-Factor <br />0.45 <br />Maximum SHGC <br />0.33 <br />Maximum Air leakage rate for all fenestration except curtain walls <br />and storefront glazing <br />.20 cfm/ft2 <br />Maximum air leakage rate for curtain walls and storefront glazing <br />.06 cfm/ft <br />Skylights <br />Maximum U-Factor <br />0.50 <br />Maximum SHGC <br />0.40 <br />Maximum Air leakage rate <br />20 cfm/ft2 <br />f. V7sA!el�iniL�i TS7�!R�RSRsIfi�!!f l7RlfETT7'lRtfS!Sl.. <br />12. Section C402.4.1.2 is deleted and replaced with the following: <br />C402.4.1 Minimum area of natural lighting. Not less than 8% of wall area for <br />warehouses: and industrial shall be glazed. <br />13. C403.2 System design. Mechanical systems shall be designed to comply with <br />Sections C403.2.1 through 403.2.3 C403.2.4. Where elements of a building's <br />mechanical systems are addressed in Sections C403 through C403.14, such elements <br />shall comply with the applicable provisions of those sections. <br />14. Section C403.2.4 Space heating equipment is added as follows: <br />Page 7 of 29 <br />