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Do-It-Yourself (DIY) Question & Answer Forum
Back boxes 5mm sunken into plasterboard walls
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<blockquote data-quote="Mike.J" data-source="post: 532649" data-attributes="member: 34414"><p>The acoustics will transfer through the back box into the room, it has formed a bridge, I have not done this in the UK but in France they sell special back box's that are like a plasterboard box that is acoustically sealed (airtight) and does not penetrate the sub structure, I would suggest removing the 35mm back box in the breeze block and replace them with an acoustically sealed version into the plasterboard thereby separating the zones on either side of the wall, even clips fixing the cable to the wall can transfer sound.</p><p></p><p>[URL unfurl="true"]https://www.leroymerlin.fr/produits/electricite-domotique/interrupteur-et-prise/boite-encastrement/boite-encastrement-etanche-a-air-multicloison-1-poste-s-lexman-72049005.html[/URL]</p></blockquote><p></p>
[QUOTE="Mike.J, post: 532649, member: 34414"] The acoustics will transfer through the back box into the room, it has formed a bridge, I have not done this in the UK but in France they sell special back box's that are like a plasterboard box that is acoustically sealed (airtight) and does not penetrate the sub structure, I would suggest removing the 35mm back box in the breeze block and replace them with an acoustically sealed version into the plasterboard thereby separating the zones on either side of the wall, even clips fixing the cable to the wall can transfer sound. [URL unfurl="true"]https://www.leroymerlin.fr/produits/electricite-domotique/interrupteur-et-prise/boite-encastrement/boite-encastrement-etanche-a-air-multicloison-1-poste-s-lexman-72049005.html[/URL] [/QUOTE]
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Back boxes 5mm sunken into plasterboard walls
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