Trinacheile
Registered User
- Messages
- 15
Hi,
We have a really cold house that has a little bit of old fibreglass insulation up in the attic between the ceiling joists, put there by the previous owners.
The house is very small so we want to put down chipboard in the attic to use it for storage space, but also make it as insulated as possible.
I've been reading the various threads on attic/loft insulation, and looking up the different products B&Q sell etc, but I'm still pretty confused about what to do.
All the wiring for the house is strewn around over the attic floor. So we need to make sure we don't squash it.
I know that you usually need about 270mm thick insulation to be really effective, with the highest possible R value.
The space board-type insulation for laying between joists have very low R values, less than 2. But they would be so handy for putting boards on top of afterwards.
So would it be best for us to:
We're going to put some insulation over the attic door too to keep that warm.
I suppose the problem really is how to get good insulation within the existing joist levels.
Any advice would be much appreciated!
We have a really cold house that has a little bit of old fibreglass insulation up in the attic between the ceiling joists, put there by the previous owners.
The house is very small so we want to put down chipboard in the attic to use it for storage space, but also make it as insulated as possible.
I've been reading the various threads on attic/loft insulation, and looking up the different products B&Q sell etc, but I'm still pretty confused about what to do.
All the wiring for the house is strewn around over the attic floor. So we need to make sure we don't squash it.
I know that you usually need about 270mm thick insulation to be really effective, with the highest possible R value.
The space board-type insulation for laying between joists have very low R values, less than 2. But they would be so handy for putting boards on top of afterwards.
So would it be best for us to:
- Take out the old raggedy fibreglass
- Buy new space combi roll and put down two layers of it to get the R value up to about 6
- Raise the joist height (somehow), and lay the wiring back on top of the new insulation
- Put slats across the joists so we can put chipboard on top of it without the insulation being compressed or the wiring being squashed.
We're going to put some insulation over the attic door too to keep that warm.
I suppose the problem really is how to get good insulation within the existing joist levels.
Any advice would be much appreciated!