Cavity wall insulation

ankspon

Is it a legal requirement to install this in properties now.My apartment was built in 07,is ground floor of 4floors and i have said before is terribly soundproofed.We have had extra soundproofing installed with not much difference and the noise is coming down the cavities as well.The problem is if we could have cavity insulation installed would the have to do the whole block and the fact it is leasehold may be a problem as well.Any advice welcome please.

Kernel_Sanders

ankspon wrote: »

Is it a legal requirement to install this in properties now.My apartment was built in 07,

I can only presume you mean 1907 as it's been a legal requirement for new builds for years now.
I've heard of no plans to make it a retrospective; indeed, in exposed parts of NI and western Scotland it would be inadvisable, at least on south and west facing walls.
I believe you would need the consent of all tenants in a block. Have you asked the freeholder?

danncus

Kernel_Sanders wrote: »

I can only presume you mean 1907 as it's been a legal requirement for new builds for years now.
I've heard of no plans to make it a retrospective; indeed, in exposed parts of NI and western Scotland it would be inadvisable, at least on south and west facing walls.
I believe you would need the consent of all tenants in a block. Have you asked the freeholder?

why is not advisable on south & west walls? i'm considering having it fitted to my home, as the north facing walls are always cold, but i'm not sure of any bad points?

tlh858

There may be issues with very exposed walls where water can penetrate into the cavity. With no insulation, the moisture will evaporate due to the cavity being ventilated. With the insulation, the moisture will stay there and could cause problems with water penetrating into the inside of the building.

However this all depends on where the property is and just what state the outside walls are in. All of this should be checked by the surveyor before the insulation is installed.

If it's 4 floors, the installation will cost a substantial amount, as scaffolding will be required.
Internal wall insulation is another option.

cyclonebri1

Kernel_Sanders wrote: »

I can only presume you mean 1907 as it's been a legal requirement for new builds for years now. :)
I've heard of no plans to make it a retrospective; indeed, in exposed parts of NI and western Scotland it would be inadvisable, at least on south and west facing walls.
I believe you would need the consent of all tenants in a block. Have you asked the freeholder?

Not quite right,


It is perfectly possible to meet building regs for wall insulation values by other means without filling the cavity.
The regs simply give a min value that has to be achieved, they don't dictate how it is acheived.;);)
But in essence the alternatives are much more expensive, so almost without exception the design does go the cavity wall ins route.