dry lining

AJE

sorry ppl, i did a search for dry lining here and got stuff about bernard dunne so here i am asking if there is a need to dry line a new build

if there is a discussion about this already my apologies and i would be very grateful for the link

thanks

No6

Not to be flippant AJE but it all depends on how and with what you intend to insulate it. Could you give a little more detail and some of us could try to help. It also depends on what u value you are trying to achieve, complaince with the regs is one thing exceeding them is another.

Poor Uncle Tom

We need a little information as No6 has said.

Is the house designed?
Is planning permission got?
Is there a specification for the building?
Do you want to upgrade an existing spec?
Are you just starting a design?

Specifics Bob, we need specifics.......

AJE

Poor Uncle Tom wrote: »

We need a little information as No6 has said.

Is the house designed?
Is planning permission got?
Is there a specification for the building?
Do you want to upgrade an existing spec?
Are you just starting a design?

Specifics Bob, we need specifics.......

first off, love your name Poor Uncle Tom, v.gud

secondly, i will try and answer the above questions as best i can
the house is designed, planning got, spec done, builder has suggested to change the spec and we have just laid the raft.

the engineer has suggested 150mm insulation for the cavity. We are going for a heat recovery system so the house needs to be well insulated and air tight (but i'm sure you know all about this)

our builder has suggested 100mm cavity and 50mm dry lining. This is where my problem lies as we don't know if this is ness or not. any advantages or dis with dry lining? Our engineer obviously knows what he is talking about but we are thinking we should let our builder do what he does best.

any advice?

Poor Uncle Tom

Your builder is pushing for what he is used to, the standard 100mm cavity in the build, insulate and dryline later.

My problem here is, your house is designed and speced and has planning permission and now at the last hurdle the builder is throwing a spanner in the works. A question for your builder: what is wrong with the 150mm insulated cavity planned and specified?

To answer your question, yes the specs can be changed, but should only be done so with the help of the person who designed the house and the BER assesor used when designing the insulations, that way you will see if any changes affects the u values.

AJE

thanks uncle tom

i'll get our engineer to discuss it with the builder, they are meeting this week anyways as the builder wants to erect the fence

thanks for the advice