Specifications include, but are not limited to: Part 1 - Exterior repairs, waterproofing and cleaning of the entire MLHC facility. The findings in a 2012 Exterior Infrastructure Study illustrate waterproofing on the building is no longer providing adequate protection. There are areas that require repairs or replacement at the limestone panels, granite systems, copper walls, plaza pavers, loading docks and levelers, storefronts, entryways, windows, and concrete approaches due to years of water infiltration. A snowmelt system is proposed in the elevated courtyard area. Beyond the façade, many of the docks, entryways and railings need repairs or full replacements due to water infiltration and corrosion caused by winter salting. They include but are not limited to, the main storefronts, terraces, and dock doors. Also, the south side stormwater concrete crock and hatch system has deteriorated and is starting to cave in and needs repairs. PART 2 - Replacement of the atrium windows. The current windows, seals and aluminum frames have begun to fail and need to be replaced. Failed gaskets have caused water to infiltrate the building, damaging the structure and creating an environment for mold growth. There are many artifacts and library material that could be destroyed should a catastrophic leak develop. New energy efficient window systems could greatly reduce utility costs. All work on this project must be closely coordinated with DTMB and the building occupants. The selected firm may be asked to track the work associated with the two parts of this project separately.