Atschi
2013-07-17 19:02:49
- #1
Good evening!
I bought a house built in ’77; part of the attic was finished by the builder. The rest is in raw condition, meaning the tiles or Eternit shingles are visible, no counter battens and no underlay. Since the house has a double German covering with Eternit and is also watertight, I don’t want to remove the shingles and would rather approach the matter from the inside. I retrofitted a roof window in a part that is finished and was surprised by the underlying construction. Structure from outside: Eternit, battens (no counter battens), a batten nailed to the rafter and boards on top, distance to the shingle about 3 cm (ventilation), 10 cm cellulose wool, clad with boards, 2 cm Herathan (rigid foam board), 4 cm Heraklith. The best part is it is relatively cool in the upper floor and the insulation is bone dry. Now my question: I want to do almost the same but with 18 cm insulation wool and vapor barrier inside. Please give me your opinion.
I bought a house built in ’77; part of the attic was finished by the builder. The rest is in raw condition, meaning the tiles or Eternit shingles are visible, no counter battens and no underlay. Since the house has a double German covering with Eternit and is also watertight, I don’t want to remove the shingles and would rather approach the matter from the inside. I retrofitted a roof window in a part that is finished and was surprised by the underlying construction. Structure from outside: Eternit, battens (no counter battens), a batten nailed to the rafter and boards on top, distance to the shingle about 3 cm (ventilation), 10 cm cellulose wool, clad with boards, 2 cm Herathan (rigid foam board), 4 cm Heraklith. The best part is it is relatively cool in the upper floor and the insulation is bone dry. Now my question: I want to do almost the same but with 18 cm insulation wool and vapor barrier inside. Please give me your opinion.