Soild wall insulation

[riddick]

Hi I live in a 1930`s semi detached house with soild external walls. I have noticed that the exterior wall is always cold and prone to condensation. I have installed an extractor fan in the bath room and the kitchen I have also installed trickle vents on the new windows upstairs. I have walked the perimeter of the house and can only see 3 wall vents all at low level under the floor void (the house has suspended wood floors) I have checked all of these and they are all clear. There still seems to be alot of condensation on the windows and the external wall is there anything else I can do to combat this?


Also I am considering insulating the flank wall using thermaline plus board (27 or 35mm thick.) As this comes with a vapour barrier can I fix this striaght to the wall using an adhesive also would I need to skim the new insulated plasterboard or could I decorate striaght onto it. any ideas or answers would help.

Thanks

 

[noseall]

if the insulation boards have a vapour barrier then they will need to be mechanically fixed to battens, unless the manufacturer's warrant the use of foam-fix type adhesive.

recently we used 62.5mm thick kingspan kooltherm insulated plasterboards.

 

[PerryOne]

It is perfectly normal for a solid wall to be cold on the inside during winter - the normal range is 16 to 19 degrees C.
You can insulate on the outside or inside and can expect to receive a noticeable improvement on your heating bill.
Above 5 inches of insulation is a waste of money.
Air bricks are installed to help prevent wood rot, by allowing air to circulate under a wooden floor.
They only work properly when they are installed on opposite sides of a building and the passing wind can suck the air through.