Internal solid wall insulation

[FreeD]

Anyone know which product from which company is the best for refurbishment jobs i.e minimum loss of space and U-value 0.35W/m2K? Cost not an issue.

 

[theblones]

Whatever size celotex they use in cavities these days will be good enough even a bit more than necessary for .35

 

[owls]

50mm minimum.

 

[henry]

whats the price per sheet of that just a ball park price.

 

[theblones]

Its about £5.00 m2

 

[FreeD]

Kingspan K18 looks quite good.

 

[plasterjfe]

you will need 50mm phenolic min as the boys have said. if you use ground battens or similar you will have cold spots so u may not get .35 overall but you could dab and fix insulated boards all round for full coverage

 

[Chris W]

think your looking at 80mm cellotex with the 25mm air gap to hit .33 (refurb requirement, works out same as a cold roof) theres a calculator on the cellotex website, just bang in your wall/roof construction and it gives you a spec for whatever u value youre trying to hit...