DragsterDriver

Generally? We would have block and beam, then insulation, then UFH, then screed

I keep referring these things to the search bar ? plenty of posts where folk are trying to convince their builder ? searching ‘rafts’ next.

i have got access to vibrating tamps and power floats (plus a fella that can drive it ?) everybody I’ve spoken to so far has looked at me like a Martian when I mention UFH in the slab though!

Yes an ashp with ufh seems the route- and an insulated slab with the pipes in the power float saves some serious dollar. I can do all of this with the exception of the power floating ? I’d probably prefer not to go down the kore type raft, the more ‘traditional’ I make it the easier with both my knowledgebase and ability to call in favours.

I think I’d probably need to lean towards 150mm frametherm and then pir board on the internal face. did you have underfloor heating?

I’m lucky- I usually breeze in and do the fun bit! planning officers- just have no sense of how the world works.

how much frametherm or similar reaches the threshold of ‘decent’? I use a lot of pir board and it’s going up again bigtime before I get round to needing it for the build. The last couple of years are eye watering increases!

yeah I need to weigh it up- at the moment the cost of 100 sheets of 120mm pir board on top of the block and beam is savage. some sort of insulated raft is probably more economical.

Thanks! Generally we build everything block and beam, unless piled and ground beam ? thanks! I've a few friends taking it easy post pandemic, given a lot of people time to think. As you say though, I love building I’m not sold on ufh in the slab but it’s something I’m weighing up as an insulated raft. The cost of insulation boards is crazy at the moment and adding liquid screed to that is eye watering! But it seems air source and underfloor is the way to go. I don’t suppose you have a detail for block and beam with single timber frame on a 150mm block to eliminate cold spots? I need to look at the insulated block and beam system. I think timber and osb is around £10k for my build, and a chap I know will do it as panels for £19k delivered with internal studwork also osb one side. I need to run the sums really. That’s both plus trusses. thanks! I've built a few places for people, never with a kit! Most of my work is big loft conversions the past few years which is essentially the same thing thanks! just had a quick google they look really interesting! I’m at the 150mm stud with frametherm insulation stage at the moment, not passivhaus by any stretch I just want decent the architect is painful but I need him to get it all through planning...just the pace that people work at shocks me... but they may well be I’m demanding! cost is definitely a consideration because I’m pretty much going ‘all in’ to finance this which should be my final home.

Morning! I have a plot and I’m just trying to get plans done with an architect (painful!). The plot has existing planning for a potton kit but I’m wanting something different. I’ve been using lots of input from here as a guest, it’s a great resource! ive been a carpenter (weeps) 30yrs now, also a builder for the last...15yrs i guess. I’ve finally scaled down work and have taken a ‘bridge’ on my house to buy the plot and will use a self build mortgage. I’ve really enjoyed building and have constant enquiries but sadly I’m just not ‘material’ in any way which is great for customers but during lockdown (despite working throughout) I realised I’m a workaholic for no real reason. This will be a bungalow, nothing flash but my forever home. Timber frame with lots of cladding. Well insulated but not passivhaus extremes. currently pondering: raft or strip footing UFH in slab or screed stick build or kit build Thanks!