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South Ih uu'A, lf"I tld`ra`n�� <br />Phonic 77d-..r 4't 8 9 <br />September 12, 2019 <br />N Charlotte Brach, Project Engineer <br />City of South Bend <br />227 W. Jefferson Blvd., Ste 1316 <br />South Bend, Indiana 46601 <br />RE: Project No. 119-049 <br />Vested Interest Building Roof Repair <br />Charlotte, after reviewing the bids I have the following comments for you to <br />consider upon selecting a roof system and a contractor to do the roofing work for <br />the Vested Interest project. <br />We specified the Sikaplan-Rhinobond metal retrofit systems because they are <br />the best PVC systems on the market; there is no equal to the longevity and <br />performance of these systems. The Sika Corporation has a track record of <br />proven performance of over 50 years. The Carlisle Sure -Flex KEE HP system, <br />although a good system was specified to provide the City with another bid for the <br />intended work. The Carlisle system is a new product with a quality manufacturer <br />with no track record of proven performance for their specified PVC system. <br />The base bid total for the best product available in the market with proof of <br />performance is less than seven thousand dollars over the alternate system price, <br />which under a warranty period of 15 years equates to cheap insurance for the <br />reliability of the roof system. <br />It is my recommendation that the City of South Bend approve the base bid price <br />for the proven performance of the Sika Sarnafil roofing system and hire Midland <br />Engineering to do the work. <br />Should you have any questions feel free to give me a call. <br />Sincerel <br />Joseph A. Dzierla, AIA <br />President <br />Joseph A. Dzierla AIA & Associates Inc. <br />