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:`ca:i�i <br />/1GA tppy � q711 VVfTVt I(V1i11fN� d71Y� <br />October 12`l', 2015 <br />To Whom It May Concern: <br />This letter is meant to clarify� a concem regarding the range and dzyer exhaust vent <br />materials installed at the Silver Lal:e Cente.r townhomes built by Polygon Homes <br />NorthwesC. Specifically, the plan "E3'' townhomes in buildings 3, 6, 7, 8, 9, 10, I 8, 19, <br />and 20. After having a representative of Bob's Heating perform a physical inspection of <br />all E3 plan units ii� these buildings,l�ve carl confirm these installations have been <br />compieted using 30 gauge solid metal duct for the range exhausts, and 28 gauge solid <br />metal auct for the dryer exhausts in accordance with chapter 1 � of the 2Q 12 International <br />Residential Code. <br />Sincerely, <br />%',�' <br />G ;�� <br />Ryan St��am <br />Mechanical Engineer <br />Bob's Heating and Air Conditioning, inc. <br />