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,�,Yl�F�r.�`Cw S�CY RL�i <br />��,�r_..:.s„�sm <br />¢ T �� <br />���n�c a �R caNpma�,�, ia�, <br />October 19`h, 2015 <br />To Whom It May Concern; <br />This ietter is meant to clarify a col�cern regarding the range aiad dxyer exhaust vent <br />materials installed at the Sih�er Lake Center to�v�7homes built by Polygon Homes <br />Northti�vest. Specifically, tl�e plan "E1 and �3" tow-��homes in builctir�gs 3, 6, 7, 8, 9, 10, <br />18, 19, and 20. Aftei• havi�lg a represeritative of Bob's Heatillg perf�rm a physical <br />iuspecfian ofall EI and E3 pian units ii� ihese. bui1di31gs, we can conirrnl tl�ese <br />installations 11ave been compfeted using 30 gauge soiic� meta} duct for• the. r��ge exhausts, <br />a.nd 2$ gauge sol'zd metal duct for the dryer exhausts in accordance with chapter 15 of the <br />2412 lniert�ational Residential Code. <br />Sincerely, <br />Ryan Strom <br />Mechanical Engineer <br />Bob's Heating and Air Conditioning, in.c. <br />