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:��_ :� <br />t�4i�10 � Ill� Cb�it)ti}fhVlA'G, 11t�, <br />October 12`�', 2015 <br />To Whom It May Concern: <br />This letter is mea.r�t to clarify a concern regarding the range and dlyer exhaust vent <br />materials instalied at the Silver Lake Center townhomes built by Polygon Nomes <br />Northwest. Specifically, the plan "E3" townhomes in buildings 3, 6, 7, 8, 9, 10; 18, 19, <br />and 20. After having a representative of Bob's Heating perform a physicai inspecfion of <br />a11 F,3 plan units ii1 these buildings, ��ve ca.n corl�ri�a these installations have been <br />completed using 30 gauge solid rnetal duct for the range exhausts, and 28 gauge solid <br />metal duct for the dryer exhausts in accordance with chapter 15 of the 2012 International <br />Residential Code. <br />Sincerely, <br />,- <br />. <br />� <br />Ryan Strom <br />Mechartical Engineer <br />Bob's Heating and Air Conditioning, inc. <br />