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Found 2 results

  1. The outer leaf for most of the house's cavity walls are going to be flemish bond. We'll cut bricks in half to make 'header' part of the bond as you'd expect. What I was wondering is whether we should widen the cavity slightly to make the laying easier. Half a standard brick is 215 / 2 = 107.5mm whereas the standard brick width is 102.5mm. The blade of the grinder will take a bit off, but it's enough work to cut bricks in half let alone cut a slither off. The cavity is to be 100mm mineral wall. Should we tweak the cavity width to say 105mm to make life easier or could that create it's own issues? I discussed it with a pair of brickies, one said no as he likes a 'tight cavity' whereas the other said yes and the compromise was to go with 102.5mm, but I wanted to see what others thought.
  2. Depending on the number crunching, I seem to be settling on a 155mm full fill cavity with eps beads for a number of reasons, fast install, builder free installation etc to name a few. With Thermabead's Carbon Saver for example brick outer, 155mm full fill, med dense block inner and plaster finish gives back a u-value of .18. To cost out Thermabead have said to work on the basis of £10pm/sq for a 155mm fill. I was just wondering if anybody had there insulation costs to hand to easily try and draw some comparisons to other methods (I realise this may difficult so cost per meter squ would be easiest) If anybody can suggest other eps bead providers also. Finally, would like to hear people's options on the figures achieved above. I like it as it appears a respectable value for a modest cavity size. Climabead doesn't seem to perform as well (185mm needed to achieve the same), waiting to hear back from Poly-pearl and energystore (all taken from the national bead blowers association website) thanks in advance
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