poacher2 0 Posted April 17, 2009 Report Share Posted April 17, 2009 Any builders im converting the garage the floor needs raising about 400mm im gonna do this with 6x2 joists the thing is do i need insulation in between the joists to pass building regs ? Quote Link to post Share on other sites
digger63 3 Posted April 17, 2009 Report Share Posted April 17, 2009 Yes mate if its going to become a dwelling area,theyv'e gone f......g crazy with insulation,eec rules now. Quote Link to post Share on other sites
poacher2 0 Posted April 17, 2009 Author Report Share Posted April 17, 2009 Yes mate if its going to become a dwelling area,theyv'e gone f......g crazy with insulation,eec rules now. cheers mate but what if ive got the chipboard down before the inspector comes ? Quote Link to post Share on other sites
fielddweller 1 Posted April 17, 2009 Report Share Posted April 17, 2009 Yes mate if its going to become a dwelling area,theyv'e gone f......g crazy with insulation,eec rules now. cheers mate but what if ive got the chipboard down before the inspector comes ? You will probably have to take some of it up.Those days have long gone. ATB Fielddweller Quote Link to post Share on other sites
digger63 3 Posted April 17, 2009 Report Share Posted April 17, 2009 He could make you take some up to look , not worth it for what it will cost and with it being a wooden floor you will need airbricks in the external walls[stops dry rot] so it would help to keep the bills down,we pay about £4 per sq m for it,the stuff that comes on the roll not batts. Quote Link to post Share on other sites
poacher2 0 Posted April 17, 2009 Author Report Share Posted April 17, 2009 He could make you take some up to look , not worth it for what it will cost and with it being a wooden floor you will need airbricks in the external walls[stops dry rot]so it would help to keep the bills down,we pay about £4 per sq m for it,the stuff that comes on the roll not batts. thanks digger looks like ill have to put kingspan inbetween my joists Quote Link to post Share on other sites
borderboy 80 Posted April 17, 2009 Report Share Posted April 17, 2009 agh now there's a job you will enjoy... f*****g hate using insulation its all dusty itchy horrible shit no matter what you do... Quote Link to post Share on other sites
ArchieHood 3,692 Posted April 17, 2009 Report Share Posted April 17, 2009 Any builders im converting the garage the floor needs raising about 400mm im gonna do this with 6x2 joists the thing is do i need insulation in between the joists to pass building regs ? if your raising the floor by approx 400mm , a 6x2 joist will only raise you 150 mm plus 18mm flooring = 168mm Quote Link to post Share on other sites
borderboy 80 Posted April 18, 2009 Report Share Posted April 18, 2009 also you wouldn't normally insulate a supended timber ground floor as you'd need the ventilation...? Quote Link to post Share on other sites
mbrydenuk 14 Posted April 18, 2009 Report Share Posted April 18, 2009 dont stuff it with insulation leave an airflow gap to the under side and you would be cheeper to use glasswool and netlon than kingspan but if you do use kingspan use a knife to cut it instead of a saw just cut it from both sides and snap it ,that keeps thedust down a bit , you could even use foiltec and just run it over the joists but it dose cost a bit mate Quote Link to post Share on other sites
Blakloks 5 Posted April 18, 2009 Report Share Posted April 18, 2009 Staple netting over the joists and let it hang down between them and put insulation on top of the netting and leave a hatch for your inspector because that chipboard is crap to try and lift once the joints are glued!!! Quote Link to post Share on other sites
poacher2 0 Posted April 18, 2009 Author Report Share Posted April 18, 2009 Any builders im converting the garage the floor needs raising about 400mm im gonna do this with 6x2 joists the thing is do i need insulation in between the joists to pass building regs ? if your raising the floor by approx 400mm , a 6x2 joist will only raise you 150 mm plus 18mm flooring = 168mm oh yes i need 16x2 s then dont i didnt think of that cheers MATE!! Quote Link to post Share on other sites
jembo 0 Posted April 18, 2009 Report Share Posted April 18, 2009 You wont get 16x2's! You will either have to suspend 6x2's on joist hangers or concrete to get the floor raised. Quote Link to post Share on other sites
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