Re: Blow-in insulation over knob and tube
Yep ... there is an expense to rewiring a home but there comes with that piece of mind you have safer electrical and more flexable for current and future needs ( also resale value ).
If I'm not mistaken your electrical code doesn't allow K&T to be covered over with insulation.
There would be 2 main entities that would dictate the need for rewiring .... the local building department and your home insurance company.
2 cents worth.
"" an ounce of perception -- a pound of obscure "