bighouseproblems

Can you see a problem I cannot? The wall has dried out almost immediately it was all soaking wet only a few hours earlier?

Outside wall after a massive amount of rainfall and driving rain today. My hope is it will still dry out and I can monitor it once the insulation is installed.

I will be leaving a void probably 30mm to be safe. Currently there is gypliner installed but is set too close to the wall to then fit any meaningful insulation plus the upright stud are wafer thin I looked into some insulation clips but ultimately thought sod it I'll just take it out and have a wooden stud built up that will take the insulation better. Was thinking of OSB but if they are built on the wall might be a nightmare and possibly breather paper might work on the outside of the insulation closest to the wall you mean?

Just read through your very long thread. I personally think that would end up in transferring the moisture elsewhere ie it would sit on the floor or run down the house somehow. From what i have read you either go fully orignal and lime plaster everything which may or may not give you the desired u values and also may not aid with noise levels (debateable) or go with a halfway approach of letting the wall breath on the inside and out and treat it as it's own entity and then insulate the inside. I have spent so many house reading eveything i can find and there is no "right" approach as far as i can tell. If i was in your postion and climate factors were plageuing your decisions i would probably take a look into some moisture measuring tools and temperature sensors and start taking measurements of the walls inside and out. Also you could create a mock up section seal it to the wall and then investigate it after a week or 2. I am going down the suck it and see route as i have a wife and child and i am wrong and it doesnt go well i guess i will have to replace it all.

Just posted about internal insulation looking for advice and noticed this post. there goes my entire evening reading everything now thanks everyone.

So I am up to my neck in various form of insulation. Hours upon hours of reaserching but here we go. Solid Sandstone Walls on the front of my house. Solid Bricks on the rear after a rebuild well before my time. I have got to the point of these options. Some idiot years ago ripped out all the lime plaster and metal framed and plasterboarded the whole house. My wish given an endless pot of money would be to reinstall lime plaster. Option 1 Solid wall(Sandstone) 20-30mm void not vented but may look at venting into the loft space. 2x6 stud filled with 140mm possibly rockwool or frametherm VCL 2x 12.5mm soundbloc plasterboard This is my favoured approach due to the increased performance of the combined materials however i do have concern about sitting them against each other between the studs Option 2 Solid Wall 20-30mm void 2x6 studs 90mm Rockwool with 50mm pir ontop of it VCL 2x 12.5mm soundbloc Option 3 solid wall 20-30mm void 2x4 studs 90mm rockwool 50mm insulated plasterboard or 50mm pir 12.5mm soundbloc I do have plenty of room in the house so eating into the space is not a great concern but don't want to go to mad. Keen to have a mineral wool insulation due to its sound absortion properties and also the cost factor. I am very aware of the issue with insulating solid wall properties and have investigated every option under the sun however sometimes you have to just go with your gut and it has survived so far with gypsum. has anyone done a similar setup? ps i have run these setups through ubakus and they look ok.