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Addendum 1— Bid 2017040 <br />Question 5: What type of safety requirements need to be met regarding sidewalk closure/pedestrian <br />protection? <br />Answer: The successful contractor will be required to submit a project phasing plan for review by the <br />County. The phasing plan will include areas that will be closed to pedestrian traffic during construction. <br />The County will allow for sections of sidewalks and parking areas around the building to be closed for <br />construction purposes. At no time shall the entrances to the building be closed to public access, nor shall <br />ADA accessible routes be closed the public. <br />Question 6: Have both of the suggested manufacturers viewed the roofs? <br />Answer: No. The specified roofing manufacturers have not conducted a site visit. The specified roofing <br />manufacturers have provided input on system selection. <br />Question 7: Are elevation drawings available? <br />Answer: No. Please reference engineer construction drawings "R-101" and "R-102" for applicable slope <br />direction/angle. <br />Question 8: Is there a specified Staging Area? <br />Answer: The staging area will be on County owned vacant, grassed, property on the south side of 26th <br />Street and the contractor will be responsible for restoration of the grassed property at the completion of <br />the project. The staging area will be for equipment and new material storage only. All demolition material <br />removed from the roof project must be hauled directly to a licensed disposal facility. During phased <br />construction, areas of parking that are closed can be used for staging as well. However, the contractor will <br />be responsible for all damage to the asphalt parking areas. <br />Question 9: What material are the exterior walls made of? <br />Answer: Concrete Block/Stucco. <br />Question 10: Is there a watertight warranty required for this project and if so is there any specific level or <br />category for the warranty? <br />Answer: The specification includes a 20 year manufacturer's weathertight warranty and a finish warranty. <br />Please reference specification section 07 4113 —1.10. <br />Question 11: Are there any special details that are required for the warranty? <br />Answer: Please consult preferred manufacturer for warranty related design questions. <br />Question 12: Is the warranty a standard wind speed or is there a specific M.P.H. requirement? <br />Answer: Specification is based on a standard wind speed warranty. <br />Question 13: For the replacement of the nail board insulation, it is stated to go back with 2 layers of 1.8" <br />polyiso is there going to be a new nail board (5/8" CDX) installed over the top layer of polyiso and <br />attached into the steel deck or will bearing plates be used over the.polyiso insulation? <br />Answer: Bid items "001" and "004" require that replacement of damaged nail base insulation to match <br />surrounding insulation in thickness and material composition. Alternatively, bid items "002" and "005" <br />the replacement insulation can be either nail base polyisocyanurate or polyisocyanurate insulation with <br />manufacturer's bearing plates. <br />Page 2 of 3 <br />