I am considering retrofitting UFW in my kitchen, which is around 5 square metres, uninsulated solid concrete floor (not suspended). If I remove the existing sand and cement screed I should have about 6cm depth to work with. Any deeper would mean cutting into the underlying concrete slab or raising the floor level, neither of which are practical. The UFH would be used intermittently for comfort (walking barefoot), helping to dry the floor and prevent damp underneath and behind the kitchen units. The room will continue to be heated using radiators.
Is 6cm enough to install UFH?
Should in use a wet or electrical system ? I already have wet UFH in other parts of the house, so I should be able to tap into this.
Is it worthwhile and practical to install a very thin layer of insulation underneath the UFH if space allows and what type should I use considering the limited thickness?
Are there any precedents and guides for using vacuum insulation panels in this application?
