survey. The structural survey included measuring the deflection of each of the arches and studying the probable lateral and vertical load paths to determine areas of weakness. Survey findings The deterioration of wood occurred at typically vulnerable areas, such as the exposed end grain of arches and muntins and where wood members intersect. The humidity in the building was a contributing factor to wood deterioration. The level of moisture in the building was exacerbated by two conditions. First, the building's natural ventilation system had been removed in a past repair. The ventilators, which were originally located in the low wall area, had been filled in, and some ridge ventilators were inoperable. The air flow through the ventilators, which would have assisted in the evaporation of water, was not occurring. Second, the penetration of rain water from the exterior of the building, because of inadequate or deteriorated waterproofing, had increased the level of moisture in the wood. The copper sheathing that had originally capped the arch exteriors, in addition to acting as a moisture barrier, may have been acting as a biocide through copper oxides inhibiting wood rot. Repair process Due to the level of deterioration and concerns relating to the building's long-term maintenance, a scheme was used to restore the wood structure. This involved disassembling the structure, repairing salvageable materials, and replacing materials deteriorated beyond repair with old-growth redwood that had fallen naturally or had been left behind by loggers. This was possible due to the original method used to fabricate the structure. The construction sequence was as follows. First, temporary protection for those plants that could not be moved was provided. Then, the glass was carefully removed from the building, and historic glazing was salvaged. Structural wood elements of the building (arches), as well as muntins that held the glazing, were disassembled. The location of each element was recorded for reinstallation. The lead-based coatings were stripped from the wood members. Each wooden piece was then tested for its strength and determined if repair or replacement was appropriate. Contemporary status In January 2022, legislation was proposed by Mayor London Breed that would put the Conservatory under the oversight of the San Francisco Botanical Garden Society, along with the Japanese Tea Garden and the Botanical Garden itself, under the name "The Gardens of Golden Gate Park". Under the proposal, admission to the gardens would be free. Appearances in the Movies Vertigo