Testris Beam And Block
Posted 09 March 2016 - 05:34 PM
Posted 09 March 2016 - 08:37 PM
Posted 09 March 2016 - 09:05 PM
Posted 09 March 2016 - 10:42 PM
If I can find my old notebook, I'll try give you an idea of the costings we came up with.
Posted 09 March 2016 - 10:56 PM
Summary for 230m2 ground floor (all excluding VAT) but including Labour for beam install (tricky for us, added £2500 on) and for concrete pump and concrete topping. We laid the insulation and did all the DPM/shuttering etc)
Tetris - £18514
Hollowcore - £21,721
(Edit - I should add that this was pretty expensive, but our spans were very long, and meant upgrading the beams, which added cost. We went for 165mm insulation giving 0.14) Don't use it as a comparator to what you may pay, only relative cost to other floor types on a like for like basis
Edited by jamiehamy, 09 March 2016 - 11:00 PM.
Posted 09 March 2016 - 11:03 PM
What uValue is that for..? Is it the basic thickness..?
Posted 10 March 2016 - 08:42 AM
For me though is till could not satisfy myself with a good enough cold bridge detail at the sole plate so i think i am going down insulated raft route (i am on sand so fairly straightforward) but only coming in at circa 1k extra. Quote was had for design, calcs and supply only by AFT. Summary below for all costs up to top of finished slab of 57m2 not including drainage or UFH (apologies i put 63m2 in earlier post - please ignore)
Traditional Block & Beam, 150mm Celotex, 50mm screed - £7300
Beam & Cellecta Tetris, 75mm Cemflow Fibre - £7360
AFT Insulated Raft, C25/30 - £8250
Edited by philiphsmith, 10 March 2016 - 09:11 AM.
Posted 10 March 2016 - 09:29 AM
Cellecta responded saying they are not sure if the beams can carry the weight and would look into it. No response yet.
It seems to me that with a lightweight construction should work, if a EPS on a raft foundation can carry the load based on the slab spreading the load and minimising compression, surely this method should work.
You can try asking your SE. I am not yet at the stage to proceed so I don’t want to push it too hard at this point.
Posted 10 March 2016 - 11:48 AM
One other question, I am going with timberframe, is there anything I should consider? in simple terms if poss!
Posted 10 March 2016 - 12:30 PM
Self builders very much appear to be at the forefront of everything - at least that's what talking to tradesmen leads me to believe!
Posted 10 March 2016 - 02:24 PM
Posted 10 March 2016 - 07:44 PM
The issue I have is needing a working surface for me but if it works out cheaper, then I would rather have a better product and then lay down some hardboard over it
Edited by vijay, 10 March 2016 - 07:45 PM.
Posted 10 March 2016 - 08:10 PM
For extended period, some cheap ply would help protect it
Posted 10 March 2016 - 11:25 PM
Posted 10 March 2016 - 11:35 PM
Posted 11 March 2016 - 09:11 AM
Posted 11 March 2016 - 10:08 AM
Posted 11 March 2016 - 10:16 AM
It's not Beco planks - it's an infil system called ReadyFloor
The prices from Longley Concrete were :
Beamshield Underbeam 0.15 U £27.50 sqm
Stylite Underbeam 0.15 U £25.50 sqm
TSI infil / overbeam 0.15 U £20.00 sqm
The last one is undergoing BBA now but uses standard Jablite products
Posted 11 March 2016 - 11:33 AM
Posted 11 March 2016 - 11:40 AM