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Old 11-08-2018, 11:36 AM   #1
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Attic insulation with knob and tube?


I eventually want to put down roll insulation in our attic but there is knob and tube wiring, is this safe to put in? Should I not cover those wires? Can I maybe just put plywood over it to make a floor. The house is 135 yrs old. Thanks
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Old 11-08-2018, 11:41 AM   #2
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Re: Attic insulation with knob and tube?


No plans on re wiring the K&T?
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Old 11-11-2018, 10:02 AM   #3
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Re: Attic insulation with knob and tube?


Insulation is fire retardant. But for my safety I would plan on a house rewiring, Knob and Tube is very old wiring.
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Old 11-11-2018, 10:12 AM   #4
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Re: Attic insulation with knob and tube?


For two reasons.
1. It is a safety issue to bury K&T under insulation.
2. Once buried it becomes more difficult to remove and "out of sight out of mind" it gets forgotten increasing the risk.

It is a liability to you now and to any future buyer and before the added insulation is a good time to fix it.

In addition, before the new insulation goes in you should review the benefits of air sealing the ceiling to attic floor. At a minimum identify the big leaks and take care of them.

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