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DocuSign Envelope ID:84FEED65-C734-4847-8E30-55FF579C2681 <br /> boomeran <br /> g <br /> D E S I G <br /> rethI0,repurpose,resuks <br /> March 1, 2019 <br /> Ms. Angel Barnes, Capital Projects Manager <br /> Asset Management Services <br /> Orange County, North Carolina <br /> 131 W Margaret Lane, Suite 300 <br /> Hillsborough, NC 27278 <br /> Dear Angel <br /> Below, please find our proposal to study, research, and design solutions for the moisture mitigation and <br /> renovation at the Link Building located at 200 S. Cameron Street. Our services include design of bid drawings and <br /> specifications.Thank you for thinking of us. Please let me know if you have any questions. <br /> Background <br /> Orange County has experienced moisture intrusion in the building. Based upon testing and findings prepared by <br /> ESG, the building contains mold that is in need of remediation.There are several items contributing to the <br /> moisture intrusion including seals between the cast banding and sealing of the weep holes in the masonry <br /> veneer wall.The moisture intrusion is causing mold on surfaces within the plenum space, and noticeable rust is <br /> occurring on the 2"floor deck as well as several steel lintels above the windows. <br /> Building Construction <br /> The two-story building wall system is comprised of a masonry veneer wall over a stud frame with fiberglass <br /> insulation. Water has been entering the wall cavity at the failed sealant of the cast banding and is compromising <br /> the fiberglass insulation and interior drywall. In addition, there are some concerns with the existing roof.The <br /> metal roof is under a 10-year warranty set to expire in 2020. Orange County will work with the warranty <br /> company with issues and repairs, and Boomerang will provide guidance to the County. <br /> Initial Thoughts <br /> Boomerang Design has assessed our initial thoughts in developing a bid set of documents for the remediation <br /> and renovation work to include the following: <br /> 1. Seal up the exterior areas of leakage on the walls and roof.This work includes powerwashing all cast <br /> banding, removing all sealant placed in the weep holes (which are needed for drainage in the wall <br /> cavity), resealing all exterior banding, replacing all windows, resealing all exterior perimeter openings, <br /> reworking the buildings scuppers for better drainage, replacing or cleaning all steel lintels, installing new <br /> thru-wall flashing as needed, and investigating to ensure the main roof drains are not blocked.The <br /> building's windows are a vinyl clad wood product that have outlived their life. Replacement windows <br /> will be identical in look (to keep with the historical location of the building), but will be more energy <br /> efficient and provide a longer lifespan. <br /> 2. Working in quadrants, begin removal and replacement of interior drywall, insulation, ceiling grid and <br /> tiles and fiberglass insulation. Once a quadrant's exterior work is complete, a water test will be <br /> performed on the exterior to ensure the exterior wall is functioning properly in regards to drainage and <br /> water infiltration. <br /> 3. Work will also include cleaning of the mechanical system. <br /> 6131 Falls of Neuse Road,Suite 204,Raleigh,North Carolina 27609 tel 919.573.6400 fax 919.573.6495 thinkboomerang.com <br />