3 ms·

You're right, I ran the numbers years ago. I remain as skeptical as I am for roofing lifetime claims.

• 1attice 5mo ago
  Impressive commitment to stale inference from dated data.
  • WalterBright 5mo ago
    30 year solar panels haven't even passed 20 years yet.
    • g8oz 5mo ago
      Payback is considerably less than 20 years in most locations.
      • WalterBright 5mo ago
        Are those subsidized costs?