b'Fig. 6Clean and Prepare the OpeningEven if the opening will be wrapped, it is very important to clean theopening of any debris. Cover any holes made by the weight pulleys, etc.Remove any old screen hook eyes or other protruding screws or fasten-ers. If there are holes left by the old weights and cords, fill the holeswith insulation and cover with a thin metal plate or aluminum tape. Even if the old opening is really poor shape, it can be prepared and covered to accept the new window and the final trim.NOTE: It is recommended that you flash the left-in-place frame to be sure that any water in the wall is able to escape the opening without damaging the old frame. Use liquid-applied flashing on the silland adhesive backed flashing on the jambs and header making sure Fig. 6a you overlap for drainage.Window Fitters Guide to Window Installation32 2020 AWDI, LLC Do not reproduce without permission'