ricardo100671 Posted November 4 Share Posted November 4 Hi We are considering installing underfloor heating in prerouted 22mm OSB boards. Originally Underfloor Heating Store Quoted for ProFloor 22mm boards and we designed all our floor levels and door height to this. Now they have offer a new board, also 22mm, but foil faced and closer spacing, saying these are more efficient, which I guse makes scense. However they say you also now need an additional 6mm over the top before laying floating floor. I can understand for carpeted areas, but do I really need teh extra 6mm board, if we will be floating 12mm engineered flooring over. Would it not also be more efficient without. Thanks in advance. Link to comment Share on other sites More sharing options...
torre Posted November 5 Share Posted November 5 I think building control will insist on the extra board over. It forms part of the structural floor - you might be okay with 12mm flooring over but the next occupant may replace that with just carpet, unwittingly making the floor unsafe Link to comment Share on other sites More sharing options...
G and J Posted November 5 Share Posted November 5 8 hours ago, torre said: I think building control will insist on the extra board over. It forms part of the structural floor - you might be okay with 12mm flooring over but the next occupant may replace that with just carpet, unwittingly making the floor unsafe Is that to ensure that there’s enough strength in the floor ‘skin’ to stiffen it nicely? If so a floating layer of flooring won’t help. Presumably that extra strength could come from an extra layer under the routed OSB just as much as it could on top, perhaps improving the thermal performance. Link to comment Share on other sites More sharing options...
torre Posted November 6 Share Posted November 6 Putting the extra board below is probably problematic in terms of heat distribution (in the future carpet scenario) though I agree it'd give the same support. Best would be clarify with the board manufacturer though it sounds like they've already said it's needed Link to comment Share on other sites More sharing options...
G and J Posted November 6 Share Posted November 6 26 minutes ago, torre said: Putting the extra board below is probably problematic in terms of heat distribution (in the future carpet scenario) though I agree it'd give the same support. Best would be clarify with the board manufacturer though it sounds like they've already said it's needed Ah - do you mean ‘cooked’ stripes in the carpets. That does not sound good. Link to comment Share on other sites More sharing options...
Iceverge Posted November 6 Share Posted November 6 12mm seems very thin for engineered flooring. I suspect it's 12mm laminate you mean? In that case you could just swap it out for 6mm LVT which I would prefer anyway. Link to comment Share on other sites More sharing options...
saveasteading Posted November 6 Share Posted November 6 Is this on a solid floor or over joists? Link to comment Share on other sites More sharing options...
ricardo100671 Posted November 7 Author Share Posted November 7 On 06/11/2024 at 09:32, saveasteading said: Is this on a solid floor or over joists? It's Over Joists and we will be floayting 12mm Laminate Link to comment Share on other sites More sharing options...
saveasteading Posted November 7 Share Posted November 7 Can we see the whole cross section from ground to floor surface? Words or pictures You need structural support and insulation within it. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now