2 questions for Martin or anyone else who knows #green
1. I've just become aware of a manufacturer's claim that radiant barriers can lose effectiveness over time, either from oxidation or other deterioration. Is this true? If so, do there exist any sheet products that you believe would remain effective indefinitely in typical deep south attic temperatures? 2. I enjoyed your water heater article in the current issue of FH. Which of the steel tank models you evaluated have an easily-replaceable anode rod?