ᐅ Where to place the cables in the attic space

Created on: 7 Aug 2017 10:43
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skyboy89
Hello everyone,

We are currently working on the interior finishing of our new build.
I have a question that has been on my mind for a while.

For time reasons, I would like to start insulating our roof structure as soon as possible. Since a friend is doing the electrical work but only has occasional availability, I wonder if I can install the insulation and vapor barrier now, or if the cables and other electrical components need to be installed first?

If not, how are these cables typically installed? I want to avoid damaging the vapor barrier. The attic will not be used as living space but only as storage, where lighting and two sockets are needed.
Basti27097 Aug 2017 12:55
skyboy89 schrieb:
The attic is not intended to be living space, but just storage space where light and two power outlets are needed.

So why insulate it at all then?
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Nordlys
7 Aug 2017 12:56
Nail the cables to the rafters with clamps, insulate, cover, and run them through the drywall at the appropriate spot. You don’t need a vapor barrier. There’s already one under the roof tiles, the underlay membrane. It’s only going to be a storage room. I wouldn’t insulate it at all. Karsten
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Caspar2020
7 Aug 2017 12:56
Basti2709 schrieb:
And why insulate at all?

Because you want or need a nice, dry storage space that is less dependent on temperature changes?
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Caspar2020
7 Aug 2017 12:58
Nordlys schrieb:
Roof tiles, this underlay membrane. It's only supposed to be a storage room. I wouldn't insulate it at all. Karsten

Our attic is also insulated; at my in-laws’, it isn’t. I wouldn’t want to trade.
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Nordlys
7 Aug 2017 13:05
It’s a matter of preference. If it’s going to be used as a hobby room or similar, insulation is recommended. If it’s only for storing Christmas decorations, suitcases, or miscellaneous items, a dry cold floor is sufficient. Also suitable for drying laundry. In that case, however, the Velux window should be opened!
Basti27098 Aug 2017 08:48
Caspar2020 schrieb:
Because you want or need a nice, dry storage space that isn’t too affected by temperature changes?

I believe that with proper construction, every attic should remain dry... and despite insulation, it will still get extremely hot up there in summer and stay cold in winter, since it’s unheated... though, of course, not as extreme as if there were no insulation at all.

To me, it sounds like the typical use for Christmas boxes and storage of sorted-out items, etc.... for which an uninsulated attic would also be sufficient.