How is a rose window removed?

Our rose window is comprised of four layers: a terracotta exterior, a mortar and metal interior, the stained glass panes, and the interior wood frame.

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All of the windows must be vacuumed before they can be taken out. Dust and debris can obscure underlying damage and hinder the removal process so this seemingly simple step is actually critical to success.

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Once the glass is cleaned, a portion of the wood frame called a functional stop must be removed. The functional stop is not the entire frame but rather a thin strip of wood that is nailed to the structural frame to hold the glass in place.

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After the functional stop is removed, a curved tool is used to release the glass from the old putty. In most cases there is leading around the outside of the glass but in some cases, the glass sits right up against the frame.

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The glass is then taped together with masking tape. This ensures that broken pieces stay together during transport.

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As soon as the window is removed, the remnants of the old putty are vacuumed up and the pane is replaced with a cream colored glass. The cream glass is held by a silicone caulk, which is further stabilized by foam functional stops that are nailed into the structural frame.

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The glass panes and functional stops will be restored offsite at J. Michael Designs studio. Once the exterior terracotta is repaired the glass will be returned to the sanctuary in approximately six months.

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