The reopening of the renovated Covington branch of the St. Tammany Parish Library will be backed up one month due to delays with window installation. Located on West 21st Ave., the branch is being completely renovated at an estimated cost of more than $2 million. The original plans called for new roofing, air conditioning, lighting, flooring, and more. When renovations began, the contractor discovered that water had been leaking into the building through the windows. A decision was made to replace all of the windows with ones that would be more effective against the elements. Staffers were expecting to move back into the branch in November, hold a soft opening in December and a grand opening in January. The delay will back those plans up a month.