here - Spotswood School District

As part of the retrofit, the walls and windows will be completely removed and rebuilt to includedouble-pane glass and a new wall section with significantly more insulation. As a result of theimprovements in the insulation of the wall, the electric sill heaters will no longer be needed,which will result in significant electrical energy savings. An added benefit to the project will bethe improved comfort for the occupants as well as a clearly visible improvement to the schoolbuilding.Scope of Work• Remove and dispose of existing windows, sills, insulated panels, associated woodblocking, and trim.• Existing lintels will be cleaned and prepared for re-finishing.• Existing lintels are to receive a high performance paint coating• New, architectural grade, thermally broken, pre-finished aluminum double-pane windowsare to be installed• Construct new infill walls to consist of masonry veneer and fill with 6-inch batt insulation• Provide new solid polymer sills at each new window• The interior electric sill baseboard heat will be disconnected• The interior electric baseboard heat will be removed and disposed of as neededSavings MethodologyThe savings for the window wall replacement were calculated by increasing the R-value of thewalls in the eQUEST model and replacing the single-pane windows with double-pane windowswithin the model. The details of the eQUEST models are included later in this report.Maintenance RequirementsNo added maintenance of the windows or walls will be necessary from what the District isalready doing.Benefits• Electrical energy savings• Natural gas energy savings• Improved occupant comfort• Improved aesthetics of the building© 2011, Johnson ControlsDo not copy (physically, electronically, or in any other media)without the express written consent of Johnson Controls.137