Insulate the roof behind the upper floor with EPS filling

  • Erstellt am 2017-08-08 13:50:29

Ostfriese

2017-08-08 13:50:29
  • #1
Hello everyone,

my house is from 1969 and I insulated the attic and the ceiling of the upper floor with fiberglass wool, which has dramatically reduced heating costs. Now I want to continue in the upper floor (two bedrooms and a walk-in closet), where, due to the effort involved, only internal insulation is an option. The construction of the non-windproof pitched roof, which ends at the floor of the upper floor, is built as follows: roof tiles, rafters, and drywall as the interior wall.
I want to screw beams or stiffening profiles to the walls (42cm thick) and into the floor to create cavities 14cm deep without loading the already existing drywall, which will be filled with EPS beads and covered with drywall.

Can I do it like this, and will it be effective? Is the risk of mold very high? Should I install a vapor barrier somewhere?
I am really thankful for any constructive suggestions, advice, or warnings!
 

Joedreck

2017-08-09 02:35:49
  • #2
I would advise you to use blown-in cellulose insulation instead of the eps pellets. I did it with eps and they were blown out by the wind. A terrible experience for me
 

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