The canvas backing can be replaced by removing the tambour door from the inside of the cabinet. Cut new backing material from sail cloth, heavy artists' canvas, duck or truck tarp 1 inch narrower than the opening to allow the ends of the tambour strips to glide in the side slots unhindered. Glue the tambour strips to the cloth using polyurethane glue and weight the whole surface using a flat board until the glue dries.
Re-insert the door from the backside and install the stops. The 1970 to 1974 tambour doors were made with a paper backing. They failed quickly, and while Airstream offered a free upgrade to cloth-backed doors, some owners did not take advantage of it.
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