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  1. Z

    Finding a sound insulation flaw in a party cavity wall

    We've moved into a new flat almost a year ago. Eventually we found that our bedroom party wall does not meet the 45dB requirement. The wall is a 75 mm cavity wall made of 100mm aircrete blocks with pargecoat and plasterboard on dabs. We can hear our neighbors speaking or watching TV. The...
  2. Z

    Mortar thickness for blockwork

    Is there a recommended minimum and maximum mortar thickness for blockwork? I have a wall which seems to have uneven mortar levels of thickness. In some places it's very thin maybe 2mm .. Thanks
  3. Z

    Soil pipe sound insulation

    Hi, We live in a 9 storey building on the 8th floor. Above us there's a Penthouse flat who's bathroom soil pipe goes through the ceiling through our kitchen down to the ground level. The problem is that soil pipe is very noisy. I can easily hear the water running 7 meters away. It was...
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