1940's era house which is almost 2 stories (2nd floor rooms have flat ceiling except for last two feet or so is slanted), batt insulation in the attic.
The insulation is old and has "sagged" somewhat. I think it would be easy to remove it and just use all blown in. Others have told me, its no use to remove it, just blow in over top of it. Advice?
Thanks, much,
Justin
COMMUNITY FORUM
If you can, add rather than mess with removing. What will you do with all the old insulation?
I would check under the existing insulation for a vapor barrier. Also look for wires under the insulation. Make sure the eaves are ventilated.
I just worked on my 1973 house which had blown in fiber glass shreds without a vapor barrier. Since I was adding a whole house humidifier and the attic ventilation is minimal, I felt I really needed a vapor barrier to prevent a build up of mold growing, insulation soaking moisture. I had to shovel the existing to the side and lay faced batts. All that dust and fiber particles was horrible. I got a good dust mask and a Tyvek suit with a hood to keep from contaminating myself and my house.
I would check under the existing insulation for a vapor barrier. Also look for wires under the insulation. Make sure the eaves are ventilated.
I just worked on my 1973 house which had blown in fiber glass shreds without a vapor barrier. Since I was adding a whole house humidifier and the attic ventilation is minimal, I felt I really needed a vapor barrier to prevent a build up of mold growing, insulation soaking moisture. I had to shovel the existing to the side and lay faced batts. All that dust and fiber particles was horrible. I got a good dust mask and a Tyvek suit with a hood to keep from contaminating myself and my house.
