What is the best insulation for exterior walls?


I have a room that was added on to my home, it has 3 exterior walls, and gets condensation on the ceiling due to cold.

  4 answers
  • Kmdreamer Kmdreamer on Jan 22, 2019

    Owens Corning the pink kind put it in the walls or you could use the spray in kind make a hole top of wall between studs and at the bottom spray in then move to next section

  • Ken Erickson Ken Erickson on Jan 22, 2019

    A blown in insulation will probably work best. Check with a local insulation contractor for suggestions and insulation. It also depends on the status of a vapor barrier during the build.

  • Kathy Gunter Law Kathy Gunter Law on Jan 22, 2019

    If you purchase the insulation that can be blown in, you can "rent" the machine for free. You pay a rental fee and then it's refunded when you return the machine. It's a 2 person job and I wouldn't do it in hot weather. They should have a chart showing how many inches are recommended for your region. If you insulate the attic ceiling, make sure you put up styrofoam channels on the underside of the decking to prevent moisture build up by the insulation rolls.

  • William William on Jan 22, 2019

    For finished walls the blown in insulation is the easiest to install. Sounds like it might be a cold ceiling that need insulation. Surprised walls weren't insulated or were they.