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RESERVE ADVISORS WINDOW DETAIL Sealant at Glass/Frame Intersection Window Sash Window Frame Sealant at Frame Perimeter Mullion Glass Panes ilding Facade © Reserve Advisors Properly designed window and door assemblies anticipate the penetration of some storm water beyond the gaskets. This infiltrated storm water collects in an internal drainage system and drains, or exits, the frames through weep holes. These weep holes can become clogged with dirt or if a sealant is applied, resulting in trapped storm water. However, as window frames, gaskets and sealants deteriorate, leaks into the interior can result. The windows and doors will eventually need replacement or major capital repairs to prevent water infiltration and damage from wind driven rain. The thermal efficiencies of the window and door assemblies are affected by their design and construction components. These components include glazings, thickness of air space between glazings, low -conductivity gas, tinted coatings, low-e coatings and thermal barriers. The building should thoroughly investigate these component options at the time of replacement. Some manufacturers may include these components as part of the standard product and other manufacturers may consider these components as options for an additional cost. Arden Hills City Hall should review the specifications provided by the manufacturers to understand the thermal design and construction components of the proposed assemblies. Preventative Maintenance Notes: We note the following select recommended preventative maintenance activities to maximize the remaining useful life: Annually: o Inspect and repair loose weather stripping and/or lock damage o Inspect for broken glass and damaged screens o Record instances of water infiltration, trapped moisture or leaks Page 4.11 - Reserve Component Detail