How do you get ready to participate?
Well I am assuming that it is hard wired straight to the electrical box, in which case I am pretty sure that it is a safety thing so that you know they are working when the power comes back on.
it's the battery - change it. Or it could be a spider or dust built up in the contact area. All else fails, toss it in the trash and buy a new one for about six bucks at Home Depot.
Acrylic coatings can provide all that you ask for. They never harden on the roof so the move with your roof as it expands and contracts. Tensile strength is 410psi AS-TM- D412, 85% UV Reflective. and has a class A fire rating.
