Loft insulation for inaccessible roof spaces - any ideas?

[IrritableBitchSyndrome]

Hi everyone, has anyone else succeeded in getting tricky to access roof spaces filled with insulation? Our house has had bits of extension work done in the past leaving us with several small pitched roof spaces without access hatches. Anyone know if there is some sort of blown insulation method available that doesn't involve getting builders to put in access hatches first? I'd love to get this sorted out before winter as otherwise however cosy the main section of house, we will lose lots of heat through porch, half of kitchen and back bedroom ceilings!

Yes, you can have loft insulation blown in but I think you would need to make a hole of some kind in the ceiling - its blown in by a tube about 10cm across - its very effective (I've had it done and have seen a huge difference in the comfort of my home)

www.rockwool.co.uk/products/u/2014.product/9854/building-insulation/rockprime%C2%AE-blown-loft-insulation

Bladders73 Thanks, very useful to know. Who did your insulation? I'm struggling to even get quotes at the moment!

www.loftinsulationbridgend.co.uk/What-we-do-loft-insulation.htm

I used these, they were excellent. All depends on where you live though! See if Google comes up with installers in your area.

We had a local builder cut a very small hole (about 2ft sq!!) - in the short upright wall that gave access to our roof void. He climbed in and fixed celotec to the rafters and the back of the short upright wall and rockwool on the "floor". Then just fixed up the hole with plasterborad/plaster and we repainted that section. Has made a really noticeable difference to DS's bedroom.

The builder told me you need to leave a bit of air space so that condensation doesn't form - if you fill the void with expanding foam insulation you might get a problem with condensation/damp.

It was a pretty easy and cheap job...

I'm interested in this too, OP as our new (old) house has three attic spaces - one in the original 1850s part has an easily accessible loft hatch, whilst the 1920s extension has two tiny hatches of only 18" x 10" that only the teensiest of people could get through I know people used to be smaller, but really?

Currently the two smaller attics have zero insulation, so anything would be an improvement as the house is bloody freezing at the mo! Had wondered about the ventilation issue with the sprayed/blown insulation though.....

Ventiation is fine, if you look at the link I posted they explain that they leave the eaves free for air flow.

I can honestly say it's made a huge difference to the comfort levels in my home, I know it reduces your attic space so you can't store much (my fitters left 1 metre square free at the side of the hatch opening in case we needed to store something) but for the installation cost of £200 it's been worth its weight in gold

Thanks Bladders Will take a look at your link and start to research installers in our area. Fortunately we do have the third attic area with the larger opening which already has some - if not enough - conventional insulation installed by the PO, so this is where we will store crap stuff long term once we have brought it up to current standards.......

Apologies to the OP for detailing her thread