Pocster Posted January 18, 2017 Share Posted January 18, 2017 Hey all! One of my floors is completely underground :-) . Parking is above this area. I'm still struggling to work out what 'roof' type I have on here as it needs to take the weight of a vehicle and also be 100% (!!!) waterproof. I've looked into the 'resin' based surfaces; but not sure how feasible this is (most seem porous ) I guess what I'm really asking has anyone done anything at all remotely similar??? 1128 233A Sctn XXii.pdf Link to comment Share on other sites More sharing options...
jfb Posted January 18, 2017 Share Posted January 18, 2017 I'm sorry but I don't have any advice on the car carrying roof. I don't know what stage you are at with it all and assuming it is a domestic property the u values are pretty unambitious. In fact I suspect they may not even pass building regs now as there were changes in 2014 and I see your plans were done before that. Link to comment Share on other sites More sharing options...
Pocster Posted January 18, 2017 Author Share Posted January 18, 2017 (edited) Hey I presume the building regs I must achieve were at the time of approval/submission??? i.e. they can't adjust them later surely?. My issue (for an insulation point of view) on the flat roof/parking is I can't go any deeper or I will be above the street level. I could insulate underneath on the ceiling also; but I was told this could cause condensation issues. Just for the record; the rest of the insulation exceeds the initial spec. Walls are 150mm; floor 250mm Cheers Edited January 18, 2017 by pocster Link to comment Share on other sites More sharing options...
Simplysimon Posted January 18, 2017 Share Posted January 18, 2017 you have a beam and block floor with 120mm celotex on top with i reckon 80mm? concrete over that, if you were to place a mono layer membrane between insulation and concrete to use as a reverse dpm i would think that should keep it watertight. simon Link to comment Share on other sites More sharing options...
Pocster Posted January 18, 2017 Author Share Posted January 18, 2017 Hi Simon thanks for the info can you provide a link to a mono layer membrane so I know what you are on about ! Lol :-))))) Link to comment Share on other sites More sharing options...
Simplysimon Posted January 18, 2017 Share Posted January 18, 2017 first one i came across,http://www.alumascroofing.co.uk/products/waterproofing/bituminous-membranes/euroroof-mono-flat-roof-membrane/ cheers Link to comment Share on other sites More sharing options...
Pocster Posted January 18, 2017 Author Share Posted January 18, 2017 Thanks ! so could put something on top of this like paving etc? Link to comment Share on other sites More sharing options...
Simplysimon Posted January 18, 2017 Share Posted January 18, 2017 you've got 80-100mm concrete on top of what the drawings are calling dpc, i'd call dpm, returned up the wall, you can put whatever finish you like on top of that. Link to comment Share on other sites More sharing options...
Pocster Posted January 18, 2017 Author Share Posted January 18, 2017 Ok this membrane is ok to drive on ??? Bit worried about that Link to comment Share on other sites More sharing options...
Pocster Posted January 18, 2017 Author Share Posted January 18, 2017 I guess I'd really like the final finish to be waterproof also for peace of mind Link to comment Share on other sites More sharing options...
PeterW Posted January 18, 2017 Share Posted January 18, 2017 3 hours ago, pocster said: I presume the building regs I must achieve were at the time of approval/submission??? Correct BRegs are at the point the foundations or first notifiable work was started. Link to comment Share on other sites More sharing options...
jamiehamy Posted January 18, 2017 Share Posted January 18, 2017 At some of the shows there was a display by an Alchimica distributor based in Glasgow. They will have a product that will suit - I'm imagining one you will roll on before the concrete topping and lap up the edges. We were going to use their product as tanking but it was just too expensive and when we researched, we didn't need to go down that route. Even if you don't contact them, their website should give some food for thought. http://www.alchimica.co.uk/ Link to comment Share on other sites More sharing options...
Pocster Posted January 18, 2017 Author Share Posted January 18, 2017 Thanks will check it out ! Link to comment Share on other sites More sharing options...
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