Illinois Society of Architects · Chicago · leaf 135
Windows and Mechanical Ventila-tion.) (a) In every building hereafteierected for or converted to the purposes olthis class, courts shall be of the minimumwidths and areas prescribed in Section 429of this chapter, and vent shafts as defined in Section 419 of this chapter, shall be of thefollowing… … E. LEVAT I ON
Architecture · Building · Architects
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