Hi all. Some advice required please.
I'm a pretty competent DIY'er.
I've got a 1900's Farmhouse in Perthshire, Scotland.
The house has absolutely no wall insulation. I put 15" of fibreglass insulation in the loft last year were previously there was none. I've also fitted a multifuel stove in the dining room 18mths ago, and completely re-rendered the two storey gable end of the house 18mths ago. The render was blown and there was a slight damp issue, now completely resolved!
Next step is to start insulating from the inside. The dining room has horrible 'chip board' nailed onto 1" battens with no insulation behind... Just a two course red brick wall behind. It's the coldest part of the house. I'm able to get the room to 20oC purely with the stove on but as quick as the heat is up... It's getting sucked out through the walls.
So... (bear with my rambling!) I want to remove the horrible chipboard and batons and replace them with either 4"or 5" x 2" batons, fill them with 4" or 5" kingspan from 'seconds and co' and then plasterboard... Probably with foil backed plasterboard???? In the hope it'll greatly increase the insulation of the room and this increase the temperature of the room and with it the rest of the house!?!?
A friend of a friend (yes, that old chestnut!) who is a builder says don't do it, it'll cause damp?!? Personally I think he's talking guff! Because everytime I watch grand designs and see people renovating old properties they put up batons, slot in kingspan and then plasterboard over the top?!?!?
So (finally getting to the point!)
1st. Is kingspan a suitable insulation for such a project?
2nd. What issues might I create damp wise, if I put Kinspan in??
Should I plastic sheet the wall first?
This room has four 'breather bricks' on the outside wall. Should I leave these open, ie not cover with kingspan? To allow air flow this reducing any potential damp???
All and any info most welcome! I've searched other posts but haven't yet come across a similar question.
Thanks in advance!
I'm a pretty competent DIY'er.
I've got a 1900's Farmhouse in Perthshire, Scotland.
The house has absolutely no wall insulation. I put 15" of fibreglass insulation in the loft last year were previously there was none. I've also fitted a multifuel stove in the dining room 18mths ago, and completely re-rendered the two storey gable end of the house 18mths ago. The render was blown and there was a slight damp issue, now completely resolved!
Next step is to start insulating from the inside. The dining room has horrible 'chip board' nailed onto 1" battens with no insulation behind... Just a two course red brick wall behind. It's the coldest part of the house. I'm able to get the room to 20oC purely with the stove on but as quick as the heat is up... It's getting sucked out through the walls.
So... (bear with my rambling!) I want to remove the horrible chipboard and batons and replace them with either 4"or 5" x 2" batons, fill them with 4" or 5" kingspan from 'seconds and co' and then plasterboard... Probably with foil backed plasterboard???? In the hope it'll greatly increase the insulation of the room and this increase the temperature of the room and with it the rest of the house!?!?
A friend of a friend (yes, that old chestnut!) who is a builder says don't do it, it'll cause damp?!? Personally I think he's talking guff! Because everytime I watch grand designs and see people renovating old properties they put up batons, slot in kingspan and then plasterboard over the top?!?!?
So (finally getting to the point!)
1st. Is kingspan a suitable insulation for such a project?
2nd. What issues might I create damp wise, if I put Kinspan in??
Should I plastic sheet the wall first?
This room has four 'breather bricks' on the outside wall. Should I leave these open, ie not cover with kingspan? To allow air flow this reducing any potential damp???
All and any info most welcome! I've searched other posts but haven't yet come across a similar question.
Thanks in advance!