www's new build thread
Discussion
Good progress with easy excavation and nice and tidy. That's a good sign for you.
I am interested how the casting of the slab will be done.
It looks as though the insulation will need installing very precisely and then supported /shuttered around the whole of the perimeter of the proposed structure.
Keep us posted please.
I am interested how the casting of the slab will be done.
It looks as though the insulation will need installing very precisely and then supported /shuttered around the whole of the perimeter of the proposed structure.
Keep us posted please.
There's a bit more info and pictures on the blog at https://selfbuildnoviceblog.wordpress.com but here's some more info. I'm a bit behind with the blog due to travelling but will update it later this evening or tomorrow.
Thank you to everyone that has emailed me btw - I very much appreciate the kind comments
So, the make-up of the foundation, working from the top of the slab down is:
150mm slab
300mm EPS
50mm sand blinding
minimum 150mm MOT Type 1 hardcore
Pretty basic maths then tells us that the top of the hardcore is 500mm below the top of the slab. So why did I ask for it to be 350mm below? No idea. Idiot. Fortunately, I've spotted it before we've laid the hardcore but I'm REALLY annoyed with myself - this would have been a massive issue and I'm not convinced anyone else would have spotted it. At least not until we realised that that slab was 150mm higher than it should be!
Thank you to everyone that has emailed me btw - I very much appreciate the kind comments
So, the make-up of the foundation, working from the top of the slab down is:
150mm slab
300mm EPS
50mm sand blinding
minimum 150mm MOT Type 1 hardcore
Pretty basic maths then tells us that the top of the hardcore is 500mm below the top of the slab. So why did I ask for it to be 350mm below? No idea. Idiot. Fortunately, I've spotted it before we've laid the hardcore but I'm REALLY annoyed with myself - this would have been a massive issue and I'm not convinced anyone else would have spotted it. At least not until we realised that that slab was 150mm higher than it should be!
alfie2244 said:
Will be interesting to see how you form the toe of the concrete ringbeam.assume some sort of shuttering / pan to the perimeter but struggling to see how it will be fixed on top of the 1st layer of insulation.
I think I should have posted one of the more simple diagrams on the blog as I think it may be confusing things. The timberframe sits on a fully insulated slab - the entire outer perimeter is EPS. The extra bit of concrete outside the EPS is purely to form the base on which the non-structural blockwork sits. This doesn't really form part of the house as such, it's just decorationI'll update the blog with another image
worldwidewebs said:
alfie2244 said:
Will be interesting to see how you form the toe of the concrete ringbeam.assume some sort of shuttering / pan to the perimeter but struggling to see how it will be fixed on top of the 1st layer of insulation.
I think I should have posted one of the more simple diagrams on the blog as I think it may be confusing things. The timberframe sits on a fully insulated slab - the entire outer perimeter is EPS. The extra bit of concrete outside the EPS is purely to form the base on which the non-structural blockwork sits. This doesn't really form part of the house as such, it's just decorationI'll update the blog with another image
Edited by alfie2244 on Thursday 8th September 18:54
alfie2244 said:
Not sure I made it clear to be honest......unless it all holds itself somehow the outside of the EPS that forms the toe will need fixing before the ring beam /slab of concrete is poured......quite a lot of weight of concrete until set.but as I said I am still not sure I am explaining very well...sorry
Ah, with you! No idea!!! LolI know it's fine but I'll find out
worldwidewebs said:
alfie2244 said:
Not sure I made it clear to be honest......unless it all holds itself somehow the outside of the EPS that forms the toe will need fixing before the ring beam /slab of concrete is poured......quite a lot of weight of concrete until set.but as I said I am still not sure I am explaining very well...sorry
Ah, with you! No idea!!! LolI know it's fine but I'll find out
alfie2244 said:
worldwidewebs said:
alfie2244 said:
Not sure I made it clear to be honest......unless it all holds itself somehow the outside of the EPS that forms the toe will need fixing before the ring beam /slab of concrete is poured......quite a lot of weight of concrete until set.but as I said I am still not sure I am explaining very well...sorry
Ah, with you! No idea!!! LolI know it's fine but I'll find out
Yes that was my question also. I'm sure it's all accounted for. Any chance of seeing the real time drawing?
magooagain said:
alfie2244 said:
worldwidewebs said:
alfie2244 said:
Not sure I made it clear to be honest......unless it all holds itself somehow the outside of the EPS that forms the toe will need fixing before the ring beam /slab of concrete is poured......quite a lot of weight of concrete until set.but as I said I am still not sure I am explaining very well...sorry
Ah, with you! No idea!!! LolI know it's fine but I'll find out
Yes that was my question also. I'm sure it's all accounted for. Any chance of seeing the real time drawing?
The clean state of the site points to a good groundworker so I am pretty sure he would have it all in hand.
dS!!!! 
worldwidewebs said:
http://www.moleuk.com/Many companies about ... just an example if Openreach allow you to use them.
Edited by alfie2244 on Thursday 8th September 21:41
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