Neos2c
2015-01-19 08:38:50
- #1
Hello everyone,
I am new here and came across this site through various search queries. Although I have already read quite a bit about insulation, etc., I still don’t know what I should do in my case, so I registered here.
Last year in the spring, I bought an apartment (top floor). I am currently completely renovating it. Originally, the plan was to just do a bit of whitewashing and then move in. Well... now I have torn out the entire floor, installed an additional door, and am currently installing several ceiling spotlights. One thing led to another... I think some of you here can relate to that.
Since I live at the very top and wanted a few ceiling spotlights, I naturally also went up to the attic. Of course, the attic is ideal for installing spotlights, as I can easily reach everywhere from above to lay cables. So far so good... the first spotlights are installed and look very good. What looks less good, however, is the attic in general or rather what is called "insulation" there. The previous tenant mentioned that the apartment is fairly cool in winter, which doesn’t surprise me at all after seeing the attic.
The attic is constructed and insulated as follows: The ceiling is about 2 cm thick and made with a kind of reed as a carrier material. This ceiling is then attached to the cross beams with about 2 cm thick slats laid lengthwise. After that, there is basically nothing. After about 8 centimeters, there is a wooden strip on which small boards lie (to close the gaps between the cross beams). On these boards lies about 3 cm thick fiberglass insulation, which looks terrible due to all the dirt and dust. I hope this is somewhat understandable.
The roof is continuously insulated under the roof panels with Styrofoam inserts (Thermodach). But the insulation or the construction of the attic is very sparse. I am not surprised that a lot of heat is lost here.
Since I definitely don’t want to leave it like that, the question now is how to best properly construct and insulate it.
I had the following in mind: Remove all the fiberglass insulation (it’s soaked and dirty). Clean everything. Remove all boards between the cross beams and clean everything thoroughly there as well. Then put in 20 cm thick insulation wool between the cross beams and close it off with chipboard or something appropriate (so you can walk on it). Here I still have the question about a vapor barrier (yes/no) under the insulation and how to best lay it. I can’t go under the cross beams, so I would probably have to seal each segment individually, right?
I would be very grateful for tips and suggestions.
Here are some pictures:

I am new here and came across this site through various search queries. Although I have already read quite a bit about insulation, etc., I still don’t know what I should do in my case, so I registered here.
Last year in the spring, I bought an apartment (top floor). I am currently completely renovating it. Originally, the plan was to just do a bit of whitewashing and then move in. Well... now I have torn out the entire floor, installed an additional door, and am currently installing several ceiling spotlights. One thing led to another... I think some of you here can relate to that.
Since I live at the very top and wanted a few ceiling spotlights, I naturally also went up to the attic. Of course, the attic is ideal for installing spotlights, as I can easily reach everywhere from above to lay cables. So far so good... the first spotlights are installed and look very good. What looks less good, however, is the attic in general or rather what is called "insulation" there. The previous tenant mentioned that the apartment is fairly cool in winter, which doesn’t surprise me at all after seeing the attic.
The attic is constructed and insulated as follows: The ceiling is about 2 cm thick and made with a kind of reed as a carrier material. This ceiling is then attached to the cross beams with about 2 cm thick slats laid lengthwise. After that, there is basically nothing. After about 8 centimeters, there is a wooden strip on which small boards lie (to close the gaps between the cross beams). On these boards lies about 3 cm thick fiberglass insulation, which looks terrible due to all the dirt and dust. I hope this is somewhat understandable.
The roof is continuously insulated under the roof panels with Styrofoam inserts (Thermodach). But the insulation or the construction of the attic is very sparse. I am not surprised that a lot of heat is lost here.
Since I definitely don’t want to leave it like that, the question now is how to best properly construct and insulate it.
I had the following in mind: Remove all the fiberglass insulation (it’s soaked and dirty). Clean everything. Remove all boards between the cross beams and clean everything thoroughly there as well. Then put in 20 cm thick insulation wool between the cross beams and close it off with chipboard or something appropriate (so you can walk on it). Here I still have the question about a vapor barrier (yes/no) under the insulation and how to best lay it. I can’t go under the cross beams, so I would probably have to seal each segment individually, right?
I would be very grateful for tips and suggestions.
Here are some pictures: