Thightwadmo asked: "When was this required?"
You need to think in terms of being burned alive, not a 'requirement'. If you have a garage fire* the fire will be moved to the attic by the fan which will burn down to you in your bedroom**. The garage as built, is designed to prevent this.
*The garage is your #1 source of unattended fire in a home. It is second only to the kitchen. Kitchen fires are more likely to occur when you are in or near the kitchen.
**Over seventy years ago building codes were changed to prevent 'burn downs' which were quite common in balloon framed homes.
Last edited by Toymeister; 10-17-2022 at 06:13 AM.
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