Open cell spray foam vs alternatives

waqasahmed

Reed_Richards said:

Good luck with that; I think a "PassivHaus" retrofit could be really difficult.  I hope you are getting some expert guidance on this because some of the ideas you have had (such as spray foam insulation) would be ineffective unless other insulation is applied elsewhere in the roof space.

I've got an architect that's specialised in PassivHaus lined up  

Reed_Richards

waqasahmed said:

I've got an architect that's specialised in PassivHaus lined up  

That's good.  But if you trust your architect then don't swamp them with too many of your own ideas.  They should know what you need to do and who to employ to do it properly. 

waqasahmed

Reed_Richards said:

waqasahmed said:

I've got an architect that's specialised in PassivHaus lined up  

That's good.  But if you trust your architect then don't swamp them with too many of your own ideas.  They should know what you need to do and who to employ to do it properly. 

Oh for sure. I'd let them steer me in the right direction vs me saying "But what about x"