9720 EVERGREEN WAY BOYS AND GIRLS CLUB 2018-01-01 MF Import

e ,...:� ��-; ��r�� �„�,�-�. July 10, 1985 P1r. Qurt Cronnin Cronnin Custom Homes, Inc. 713 Southeast Everett Mall Way Evei•ett, WA 98204 RE: Boy's Club Roof Club Structure Dear Burt: On June 29, 1985, I made a personal inspection of the trusses for the roof of the Boy's Club on Evergreen Way. The trusses are approximately 10'-8" in depth and span 48' and they are spaced approximately 12' on center. The trusses were fabricated with dimension lumber mostly 2 X 10's and 2 X 6's which are laminaied by nailina and spiking. The top chord consists of 3-2 X 10's, the bottom chord and diagonals are double 2 X 10's, laminated 2 X 6's are used for the struts and other miscellaneous framing. Trusses are supported at midspan by a post which extends down to the foundation slab at the main floor. These trusses were apparently not an engineered design, so they do not act as a true truss. There is a cable which is supported at the outer ends of the top chord and draped underneath the center strut consisting of 2 X 6's and has been tightened to take a considerable part of the truss load. This cable was very tight when observed. It was noted that the bottom chord, cor.sist.ing oif 2-2 X 10's with splices bolted through with a number of 1/2" carriage bolts, has separated somewhat but the caiile tension was holdi�g this connection from further separation. The truss system is supporting the roof framing and also ceilir.g loads. It appears that the post was added at a later date to support the center of the trusses. b;ith this truss support at the center the anticipated snow loads and ceiiing Toads can be supported by the existing structure. No calculations were made of the roof purlins or ceiling joist carrying capacity, however no signs of distress of these structural elements was noted. Engineering/Archifecture f0700 Meridian Avenue North, Suite 401, Seattle, Wdshington 98133, (206) 362-6884/Everett 25&607f