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The Basement
Soundproofing a wall
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<blockquote data-quote="Carl Klinkenborg" data-source="post: 217374" data-attributes="member: 12770"><p>Mass is better than nothing, but you will be disappointed with simply plugging up the gaps with solid wood. Mass Law states that attenuation is only approximately 5db for every doubling of wall mass for a single skin wall. Any partition wall with a mechanical link (eg. plasterboard nailed each side of common studs) will be difficult to improve, and an entirely separate wall loosely coupled only to the side walls, floor, and ceiling only should be considered a minimum first step. You can then add as many layers of MDF as you like to your new wall (perhaps with the final layer on resilient bar) and partially fill the void with Rockwool - <em>there must be an air gap with between it and the existing wal</em>l. Mechanical isolation is paramount! This construction can typically achieve about 55dB overall noise reduction.</p></blockquote><p></p>
[QUOTE="Carl Klinkenborg, post: 217374, member: 12770"] Mass is better than nothing, but you will be disappointed with simply plugging up the gaps with solid wood. Mass Law states that attenuation is only approximately 5db for every doubling of wall mass for a single skin wall. Any partition wall with a mechanical link (eg. plasterboard nailed each side of common studs) will be difficult to improve, and an entirely separate wall loosely coupled only to the side walls, floor, and ceiling only should be considered a minimum first step. You can then add as many layers of MDF as you like to your new wall (perhaps with the final layer on resilient bar) and partially fill the void with Rockwool - [I]there must be an air gap with between it and the existing wal[/I]l. Mechanical isolation is paramount! This construction can typically achieve about 55dB overall noise reduction. [/QUOTE]
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