Shah

That is good. I am leaning towards single skin inner with EWI and brick slips.. Why not just a single skin and then EWI? This would be very good as it will take much less time and the whole house can be designed and built away from site (probably will be much more expensive). Can you recommend any names? How much more expensive? Any idea in terms of m2 cost comparison? Yes that is one thick floor! Any other system which is a bit less thick (or design the house in a way to keep the spans less than 6 meters even still it will be still much thicker than traditional timber flooring)? I think Blocks/EWI/brickslips (render) or ICF/brickslips (render). This will keep the walls at a reasonable thickness with solid feel to it. What kind of roof system you are using? I was thinking of SIPs (with 200-300mm insulation) but they seem expensive. I also like to add in-roof solar panels. Air tightness can be tackled by sand cement plaster on inside wall (probably with much ease ?).

Just went through the blog @Stones. Very nice. I didn't understand why more insulation was stuck on rather than put into the existing form work? I have seen some companies provide wider plastic ties with extra insulation inserts... What other forms of cladding can be used (brick possible)?

Great thanks @Stones will have a read through.

Ah cool. I am thinking of as close to passive house (0.15 u value?) as possible. But I don't know if that would be easily achievable. How about ICC. Saw it on Viking house website. Would that be more expensive than the cavity wall although they are saying it is cheaper by like 20%. So not sure if someone has used this system on the forum or any information?

Thank you Declan. You have used ICF for your build if I remember correctly from ebuild? So how does the cavity wall system work? Can it be fully filled and how much insulation can be put in? What u values can be achieved? I haven't looked into this as I would like a solid feel and I am conscious that I won't like it! The thinking is to get a passive slab like JSH did with underfloor heating and then get the building started (be it brick/block, timber, concrete etc) Thanks, This is the trend I guess in terms of cost! Thanks AliG. This is what I would like as well with a SIPs roof but I would like built in solar panels as well!!! This is what I am worried about. hence I was looking at EWI with concrete blocks so I could have 150mm of insulation with 150mm of blocks? Plus rend outside. This! so what type concrete floor have you chosen?

Hello All, Just want to get some opinions on what is best out of the above three building types? Some specific questions arise while researching the internet: Benefits/drawbacks Concrete blocks with EWI Fully fill cavity walls Poured concrete walls with EWI Which is more cost effective etc Thanks, Shah.

Thank you, yes heard about the ebuild closure and was sad but found the replacement

Just wanted to say hello. I am from London. I will post another thread with a potential house/plot I may be going to buy. Shah.