Hi There,

New to this site, it was recommended this is a great place to get advice for home renovation questions answered. I live in an older home, that had 2×4 framing, but no wall insulation. I was researching the option of retrofitting cellulose. Is this a good option? I have also seen some write ups suggesting it isn’t good. I have plaster walls, apparently people have said issues could arrive without a vapour barrier such as mold or structure damage to framing. Is this true? I’ve also heard certain paints and primers can act as vapour barrier, is there good evidence to suggest they work well? Trying to lower my heating bills and feel like it’s not freezing in my house in the dead of winter. 

Hoping someone has some advice for any of my questions above please and thank you.

John