Different types of insulation

Catxscotch

We are building a 2 storey house, with concrete slab between floors, normal cavity walls.

I am keen to make it as well insulated as possible, and am thinking of pumping the cavity, plus rockwool laid at attic level. Is there something I can put between floors?
What are peoples opinions on dry-lining/ fitting insulated slabs on the inside walls as well?

Calahonda52

read this
https://www.nsai.ie/S-R-54-2014-Code-of-Practice.aspx
whats the spec for the build or are u just winging it completely.
I ask because of this :"Is there something I can put between floors?"

sydthebeat

Calahonda52 wrote: »

read this
https://www.nsai.ie/S-R-54-2014-Code-of-Practice.aspx
whats the spec for the build or are u just winging it completely.
I ask because of this :"Is there something I can put between floors?"

this is a new build

Czhornet

Catxscotch wrote: »

We are building a 2 storey house, with concrete slab between floors, normal cavity walls.

I am keen to make it as well insulated as possible, and am thinking of pumping the cavity, plus rockwool laid at attic level. Is there something I can put between floors?
What are peoples opinions on dry-lining/ fitting insulated slabs on the inside walls as well?

Definitely dry line all the outer walls with the insulated slab, really keeps the heat in the room. At a minimum foil backed slabs should be placed on the ceiling of both floors, some people use the insulated slabs on the ground floor ceiling too with two layers of rockwool in the attic. Put in as much as you can all over the house, and don't be like our neighbours putting a fire on in June coz of lack of insulation!!

893bet

You shouldnt really be dry lining a new build.

Have you an option of increasing the cavity width or is it too late for that? Have you considered Airtightness yet?

Self build or contractor?

What's the plan for meeting part L?

sydthebeat

Czhornet wrote: »

Definitely dry line all the outer walls with the insulated slab, really keeps the heat in the room. !

dont do this.

Put all your insulation in the one plane within the cavity.

If its a new build you'll have to get a preliminary DEAP (BER) assessment done before you commence in order to figure out what specification complies with regs an what doesnt.

When you get this carried out you will be a lot more informed as to whats above and below standard construction.

Calahonda52

There is also a raft of useful details here
http://www.environ.ie/en/Publications/DevelopmentandHousing/BuildingStandards/FileDownLoad,18749,en.pdf
Only found them this am when finishing my stocking fillers

mfceiling

There is no need to insulate between the floors - or to use an insulated slab on your ceilings - the benefit will be minimal.