ronda-melmag
2013-09-19 13:45:07
- #1
Hello :-)
I am still in a "Planning to buy the house" phase.
Since the house is somewhat older (1950s), the current insulation is "zero."
The house has a pitched roof covered with slate, and at the roof ridge, you can only see wooden boards behind the rafters.
Since the space is only usable as a storage room anyway, I think the easiest thing is to simply lay walkable insulation boards on the concrete ceiling and leave it at that.
On the upper floor, there is still the sloping roof – I think the slopes are just nailed-on (barrier) wood panels, and behind them, I assume, are only empty rafters.
The easiest way would of course be to drill and blow in loose-fill insulation—
but what about the vapor barrier… how can I tell if there is one, or can such a thing also be applied later on the inside?
Or do I have to expose the rafters and then rebuild the vapor barrier/insulation/OSB board from the outside?
And the ceiling to the ridge goes into the rafters—won't I be creating a thermal bridge there? Is it better to expose the rafters at the ceiling?
Then the basement—since it is a hillside property, the basement is about 80 cm exposed on the street side (including the ceiling).
On the exposed side, the basement is completely free / there is even an entrance with a windbreak there.
On the garden side, the basement was buried (a kind of terrace and then it goes steeply down) and there it is only exposed up to about 1 meter—can you do exterior wall insulation down to the ground and insulate the rest on the inside? Or insulate the basement outer walls on the inside and overlap the exterior insulation somewhat (basement ceiling plus 20 cm, for example)?
Only insulating the basement ceiling would be undesirable, as the heating and my laundry room are supposed to go there…
Who should I ask for advice about this? Also concerning materials: wood fiber / hemp / mineral wool / Styrodur (in that order according to gut feeling).
I am still in a "Planning to buy the house" phase.
Since the house is somewhat older (1950s), the current insulation is "zero."
The house has a pitched roof covered with slate, and at the roof ridge, you can only see wooden boards behind the rafters.
Since the space is only usable as a storage room anyway, I think the easiest thing is to simply lay walkable insulation boards on the concrete ceiling and leave it at that.
On the upper floor, there is still the sloping roof – I think the slopes are just nailed-on (barrier) wood panels, and behind them, I assume, are only empty rafters.
The easiest way would of course be to drill and blow in loose-fill insulation—
but what about the vapor barrier… how can I tell if there is one, or can such a thing also be applied later on the inside?
Or do I have to expose the rafters and then rebuild the vapor barrier/insulation/OSB board from the outside?
And the ceiling to the ridge goes into the rafters—won't I be creating a thermal bridge there? Is it better to expose the rafters at the ceiling?
Then the basement—since it is a hillside property, the basement is about 80 cm exposed on the street side (including the ceiling).
On the exposed side, the basement is completely free / there is even an entrance with a windbreak there.
On the garden side, the basement was buried (a kind of terrace and then it goes steeply down) and there it is only exposed up to about 1 meter—can you do exterior wall insulation down to the ground and insulate the rest on the inside? Or insulate the basement outer walls on the inside and overlap the exterior insulation somewhat (basement ceiling plus 20 cm, for example)?
Only insulating the basement ceiling would be undesirable, as the heating and my laundry room are supposed to go there…
Who should I ask for advice about this? Also concerning materials: wood fiber / hemp / mineral wool / Styrodur (in that order according to gut feeling).