A finished hub shows where each system lands on each cost line. This one only reserves the pages.
Energy
Envelope, air leakage, and thermal mass by climate. No utility-bill claim is published.
Maintenance
What each shell tends to spend on paint, roofs, rot, and storm cleanup. Not written. No dollar figure.
Insurance
Premium as a carrying cost. Links to the insurance hub. No premium is stated.
Lifespan and reserves
Service life and replacement cycles. Not written. Appraisers are not claimed to price this.
Upfront cost and break-even
When a stronger shell pays back, and when a short hold or a quiet site does not. The model is not published.
Solar, battery, and standby power
Power on site beside the shell. Incentives are not stated.
Calculator
A carrying-cost calculator. Not built. This page does not produce a number.