B>ced combined--deal with winter moisture by placinga twig on the front rim, beneath the outer and inner coverusually before the first frost (15oct here 10 miles W of is past--about 1apr.nt, the sameffed with leaves or whatnot--nothing. BTW, two of us usemouse excluders but I NEVER do since I run my bottom boards, year round and have NEVER had a mouseproblem. (Extra expense and extra work are not my forte.)Suum cuique! John Iannuzzi PhD * "Singing masons building roofs 9772 Old Annapolis Rd * of gold." --Shakespeare Ellicott City MD 21042 usa * 20 Italian colonies [log in to unmask] * 3-1/2 decades in beedom