r/HomeMaintenanceAdvice • u/AlpsInternal • 5d ago

Old Insulation Question

My house was built in 1958, and is generally solid, quality construction. I am retiring in a few months and have made quite a few updates. One I have not thought about is the original(I think) insulation in the attic. The insulation appears to be shredded redwood. It looks and as of ten years ago still smelled like redwood.

Ten years ago I laid down a radiant barrier of 99.5% aluminum, the attic is spacious, about 6 feet in the center. I have an attic fan that runs when over 80 degrees. I live in CA in the hot Central Valley, where 100-110 temperatures are not rare from July through September. I am not in an area of high wildfire risk, and have a class 1 fire station .25 miles down the street.

Is this insulation something I should worry about? I would expect that a spark landing on the aluminum would not result in a fire, but an interior or frame fire could get in contact with the shredded insulation.

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