New member looking for advice

[Mscott]

51 minutes ago, SteamyTea said:

It is a cavity wall, probably with failed insulation, so full of thermal bypasses, the biggest one being free air movement.

 

@Mscott

As others have said, best to forget all about the multifoil type thermal barriers.

Everyone wants them to work, especially architects and house builders, so desperate are they, they want a special caveat on the standard material thermal testing regimes that will allow their products to pass with a lower R-value.

 

I don’t believe we have any issues with our cavity insulation the house isn’t cold at the moment even though we are on storage heaters (waiting for our air source to be finished) 

[SteamyTea]

17 minutes ago, Mscott said:

the house isn’t cold at the moment even though we are on storage heaters

Have you calculated your thermal losses, should give you some figures such as W.m^-2.ΔK^-1 or kWh.m^-2.ΔK^-1.  First is power, second is energy.

[Nickfromwales]

19 minutes ago, Mscott said:

 

I don’t believe we have any issues with our cavity insulation the house isn’t cold at the moment even though we are on storage heaters (waiting for our air source to be finished) 

Get the insulated plasterboards on and you should be in a good place then.

 

Are you using fans to speed up the drying process for the wet brickwork? They’ll help by moving drier air to that area and also by pushing away the moisture coming off it which would otherwise stagnate locally.

 

Fit them with a 25mm gap at the bottom so you can foam all the way along the bottom of the boards, same at each end, which will stop thermal tenting.

 

If insulation is installed poorly you’ll have gained zero and spent £lots.