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� �' ��� S•rr��ur>il .De�i�;n ,1ss��ci:lees <br />.��� Lirt�inr•crn,,ti :,;ria rrn'c�� rn l_o,� <br />October 8, 2013 <br />C.M. Heating <br />�ttn: Lyle Jones <br />1-115 [3roadway Ave <br />Everett, WA 98201 <br />� <br />i%�1 �O�t-0�9 <br />��;n� � v�.�. �;��_ . ,.,=z,. ;� s .,��is� ., . ,. <br />Subject: HVAC Roof Unit for Faith Tabernacle Church, 820 n Broadway Ave, <br />[verztt, WA 98201 <br />SDA Ref. #7149 <br />Dear Lyle, <br />At your request, this office reviewed the subject project for replacing an existing <br />HVAC rooftop unit witPi a new one. The weight cf the existing unit is 914 Ibs, and <br />the new unit is 1,098 Ibs. <br />The existing pre-manufactured open web roof trusses appear to be Truss Joist <br />McMillan TJW, 58'-0" long, with a 44" depth. <br />Calculations sliow that the maximum moment, and maximum shear, for this joist <br />f�as not been exceeded, when supporting the additional load from the IiV�C unit. <br />The 44" TJW, spaced at 32" o/c is structurally adequate. <br />Please contact this office with any questions regarding this letter. <br />Cfuis Covington, P.E. <br />�:;.;' :, <br />':. - <br />, <br />,. <br />�i� , <br />� '��; ``.,,—� <br />��,` `� t <br />�� { <br />� % ,; <br />_ 3''��'� J. <br />,r` '%'; <br />... ':r" .�.j' <br />' 9A�Ni' (i'��3�'.�ait.�'`� <br />��.� n-..-.. -�ut o� . � ) . q- •.� _ ,i - i: - ,-� �� <br />=- �l9lti�;in. �c. tirur l�11 I�,,, n. \\.\ )5'01 I h. -I_i „) n_).> .i� t', _�_ �f, In <br />N',\ �t .til l tICiIC�.iUlt7 <br />