sailorjames

Hi guys, Thanks for the replies, well I took your advice and am pulling up the floorboards. Planning to reuse most of them after putting 100mm celotex between the joists to achieve Bldg Regs floor spec. I want a draught barrier on top of joists before refitting floorboards, does this need to be breather or would plastic DPM do? Plan to seal this around the edges to walls. Any thoughts? I'll come back to the UFH later, will have a look at Wunda. Thanks again. James

Hello all, First post, looks like a great forum. We're part-way through a renovation of our living areas. Radiators have been removed downstairs (8 remain upstairs and in downstairs bedroom etc.). We were planning UFH in the living area, originally electric but our current old combi packed up the other week so are looking at a new boiler/system to run low profile wet UFH (suspended timber floor) with tile over. I wanted a thermal store but have ruled out on cost of purchase/installation. I would like to reduce combi cycling so would a buffer tank help with this? If so how are they plumbed in with the UFH? Presumably it goes boiler -> buffer -> UFH manifold. What size? There is a little 20l one made by AA. Also any recommendations on control systems for the rads vs UFH? The UFH will be in 1-2 zones max as it's open plan (except hall). Also we're wrestling with whether to put 20-30mm insulated tile backing board over the floor or rip it up and 50mm celotex underneath and new floorboards. Obviously the celotex is the "best" solution from a thermal efficiency and floor build up perspective but has anyone used the insulated tile backing board? Thanks in advance James