matt-shrops Posted June 5, 2018 Share Posted June 5, 2018 Afternoon, My house has started- I have dug the hole and it has been inspected by BC. I need to order the insulation for under the slab this week. I have had around 10 quotes for EPS and XPS. The SE has said I need 300kpa which makes EPS very expensive. The cheapest XPS 300kkpa I could find comes from Germany and is about 1.5K cheaper than ones made in the UK?-DOW, Kingspan. Polyfoam. Plus a few others imported-Fibran, BASF. I contacted some of the manufactures but the all refused to sell to me and directed me to a distributer with their markup! Seems crazy to me and the Kingspan Factory is an hour away! The base will be have be U.10 and I will be cutting the gluing(or foaming) the 200mm upstand as this was by far the cheaper option. comes in at about £30.20m2 and £320 for the 200mmx200mm upstand (47m) Anyone found a good price/supplier? Cheers Matt Link to comment Share on other sites More sharing options...
Mr Punter Posted June 5, 2018 Share Posted June 5, 2018 Try Foamtech. I used them for XPS a few years ago and they were competitive. Link to comment Share on other sites More sharing options...
dpmiller Posted June 5, 2018 Share Posted June 5, 2018 Polarwall will sell sheet material as well as their foundation system. http://www.extrudedpolystyreneinsulation.co.uk/home.html Link to comment Share on other sites More sharing options...
Russell griffiths Posted June 5, 2018 Share Posted June 5, 2018 I had a very good price from polarwall. Link to comment Share on other sites More sharing options...
matt-shrops Posted June 5, 2018 Author Share Posted June 5, 2018 Thanks, I am in contact with polar wall, he is sending prices tomorrow. Link to comment Share on other sites More sharing options...
PeterW Posted June 5, 2018 Share Posted June 5, 2018 4 hours ago, matt-shrops said: The SE has said I need 300kpa which makes EPS very expensive. EPS300 is only normally used under point loads, not under a full slab. Have you got a copy of the SE calcs, and how they have come up with this number..?? This may help - shows where EPS300 is used around the ring beam. If you do need all EPS 300 which seems unlikely, try this supplier Link to comment Share on other sites More sharing options...
jack Posted June 6, 2018 Share Posted June 6, 2018 13 hours ago, PeterW said: EPS300 is only normally used under point loads, not under a full slab. ... This may help - shows where EPS300 is used around the ring beam. Agreed. Here's a couple of extracts from our slab, showing the ringbeam and "spines" down the centre of the house, which take the linear loads of external and internal loadbearing walls respectively. The ringbeam section is as shown in the link posted by @PeterW above. The purple "thickenings" through the centre of the house look like this: The section for the red thickenings are the same, but with EPS 100 where EPS 300 is shown in the drawing immediately above. Link to comment Share on other sites More sharing options...
matt-shrops Posted June 6, 2018 Author Share Posted June 6, 2018 Evening all, Had a very (very!) good quote from @PeterW advice- thanks. However, what is the best product to use XPS or EPS or do they perform equally under a slab? Link to comment Share on other sites More sharing options...
matt-shrops Posted June 11, 2018 Author Share Posted June 11, 2018 Unfortunately Insulation superstore have suddenly increased their price from £69.90 a pack to £141 a pack... blaming a price increase from the supplier. Back to the drawing board! Link to comment Share on other sites More sharing options...
Russell griffiths Posted June 11, 2018 Share Posted June 11, 2018 What happened with polar wall. Link to comment Share on other sites More sharing options...
matt-shrops Posted June 12, 2018 Author Share Posted June 12, 2018 Polar Quote was OK- £140 m3 for the Jackodur Plus board which has an excellent value of 0.027. Also found Jackon UK that has given good quotes on Jackodur XPS to. Insulation4less have Fibran XPS at a similar price to- 100mm at £12.50m2 Link to comment Share on other sites More sharing options...
Russell griffiths Posted June 12, 2018 Share Posted June 12, 2018 Was the polar quotation not for the upstand as well my quote included this. Link to comment Share on other sites More sharing options...
matt-shrops Posted June 13, 2018 Author Share Posted June 13, 2018 oh, did you have the ATLAS system ? Looks very good but unfortunately about 2K more expensive than cutting and glueing the upstand. Link to comment Share on other sites More sharing options...
Russell griffiths Posted June 13, 2018 Share Posted June 13, 2018 My quote was £9000 for 206m covering the floor and 96 linear m of upstand. Link to comment Share on other sites More sharing options...
matt-shrops Posted June 14, 2018 Author Share Posted June 14, 2018 Mine is 115m2 with 47m of upstand. Quotes below: Polarwall Atlas System (U 0.10) £7855. DIY (cut and glue) (U 0.95) £5370 but with "shaped" boards Kingspan DIY (U.10) around £6000 depending on supplier Fibran XPS DIY (u.10) £4680 ISOQUICK (U.09) £8053 (u.11) £6886 Styrodur DIY (U.10) £4628 DOW Floormate DIY(U.10) £6306 Stylite 300EPS DIY (u.10) £3962 Jackodur Plus DIY (U.95) £3792 AFT System (EPS) (U.10) £8082 All prices plus VAT(reclaimable) Link to comment Share on other sites More sharing options...
matt-shrops Posted July 17, 2018 Author Share Posted July 17, 2018 Evening All, I have ordered Jackodur XPS PLUS 260mm which will have a 200mmx 200mm upstand foam glued on. Link to comment Share on other sites More sharing options...
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