9.25.2.4.(3) Installation of Loose-Fill Insulation

  • Adding insulation to exterior walls increases the likelihood of damage to framing and cladding components as a result of moisture accumulation
  • Older homes often did not have vapour barriers intentionally installed
  • Insulation reduces the temperature of the outer wall cavity which can lead to condensation
  • If the wall leaks, added insulation can hold the water
  • Exterior siding, flashing and caulking should be checked and repaired to prevent leaks