Réemploi et reconfiguration thermique des fenêtres bois en ... - Prebat

PUCA - Réemploi et reconfiguration thermique des fenêtres en fin de viePARTIE 1[1.26]2.13 – WINDOW SYSTEMS: REPAIR VERSUS REPLACEMENTIn a typical facade rehabilitation project, windows will represent a sizable portion of the building'senvelope and a significant relative cost. Some previous window rehabilitation strategies performedduring the energy crisis are failing, and window rehabilitation has come under greater scrutiny by thepreservation community. Often the most difficult decision when repairing a building is determining ifthe windows should be repaired or replaced. Repair of existing windows may not prove durable, andwindow replacement may be the recommended solution. The window replacement solution on alandmark structure, however, could conflict with the Secretary of the Interior Standards forRehabilitation which recommends 'preserving windows ... that are important in defining the overallhistoric character of the building.Technical, economic, and political reasons all drive the decision to repair or replace a windowsystem. The technical and economic reasons can be weighed only after a comprehensive evaluationof the existing window systems is performed and rational techniques are followed to comparewindow repair to replacement. The paper is in the form of a guideline. It establishes a background tounderstand window systems, describes an approach used to evaluate the condition of existingJuin 2012Les Bâtisseurs d’Emmaüs101