DougT
DIY Tiler
Hi,
i am new to this forum but after some advice if possible please. I am building a new extension and as part of the work i am knocking through between the new extension and an existing room. Ideally i would like Underfloor heating throughout. My plan for the new extension was pipe connected to 100mm insulation on top of concrete sub base - with a 75mm sand and cement screed on top.
However - because i am knocking through i have another floor level to consider as well (the existing floor). On ripping up the existing floor (wooden floor boards) - i discovered that the existing room is made up of two levels as well (see pics) - with one level approx 50mm lower than the other. Both are of concrete construction and neither appear to have any insulation. So - originally i was planning on doing the whole existing room with low profile UFH boards, with a ditra uncoupling matt on top followed by tiles....now i am unsure what options i have.....i dont want to dig up the existing floor....
Any advice really appreciated please - as at the moment i am very unsure on what real options i have....(and having 3 different floor bases in one room worries me in terms of different expansion rates etc....)
Thanks.
(photos of existing room only but can provide more if it helps)
i am new to this forum but after some advice if possible please. I am building a new extension and as part of the work i am knocking through between the new extension and an existing room. Ideally i would like Underfloor heating throughout. My plan for the new extension was pipe connected to 100mm insulation on top of concrete sub base - with a 75mm sand and cement screed on top.
However - because i am knocking through i have another floor level to consider as well (the existing floor). On ripping up the existing floor (wooden floor boards) - i discovered that the existing room is made up of two levels as well (see pics) - with one level approx 50mm lower than the other. Both are of concrete construction and neither appear to have any insulation. So - originally i was planning on doing the whole existing room with low profile UFH boards, with a ditra uncoupling matt on top followed by tiles....now i am unsure what options i have.....i dont want to dig up the existing floor....
Any advice really appreciated please - as at the moment i am very unsure on what real options i have....(and having 3 different floor bases in one room worries me in terms of different expansion rates etc....)
Thanks.
(photos of existing room only but can provide more if it helps)
