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Timber stud wall with 30min Fire resistance


 
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rubberneck

from United Kingdom

Joined: 16 Apr 2006
Posts: 16
Location: Cheshire,
United Kingdom

PostPosted: Sat Feb 13, 2010 7:06 pm Reply with quote

Hello.
Can I achieve 30 min fire resistance with a stud wall comprising off 75mm timber and a single layer of 9.5mm plasterboard on each side if the cavity is filled with a rockwool type insulation?

Any ideas?

Thanks in advance.
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Deluks

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PostPosted: Sat Feb 13, 2010 7:32 pm Reply with quote

Uprate the pb to 12.5mm fireline on both sides and you'll be onto a winner.

I honestly don't why people would bother wilth 9mm plasterboard in any situation.
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rubberneck (14 Feb 2010)
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noseall

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PostPosted: Sat Feb 13, 2010 7:57 pm Reply with quote

Deluks wrote:
Uprate the pb to 12.5mm fireline on both sides and you'll be onto a winner.

I honestly don't why people would bother wilth 9mm plasterboard in any situation.


Ditto to the above though fireline board is belt and braces.

Regular 12.5mm will give you 30mins f.p.
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rubberneck (14 Feb 2010)
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rubberneck

from United Kingdom

Joined: 16 Apr 2006
Posts: 16
Location: Cheshire,
United Kingdom

PostPosted: Sun Feb 14, 2010 9:37 am Reply with quote

Thanks for those replies. I've decided to put an additional layer of 9.5mm on either side of the stud wall instead. Hopefully this will aid with sound deadening as well.

Thanks again.
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Chukka63

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PostPosted: Sun Feb 14, 2010 10:27 am Reply with quote

why not just use 1/15mm plasterboard and save on screws and time.
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PrenticeBoyofDerry

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PostPosted: Sun Feb 14, 2010 12:05 pm Reply with quote

Double boarding is fine but must agree with the above replys.
12.5mm plasterboards are the normal these days, 9.5mm not really used that much now by the pro, but it does have a minimum of 30mins fire resistance, whether plastered or unplastered, it's not something I'd recommend though.
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Master of None

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Joined: 31 Oct 2007
Posts: 400
Location: Edinburgh,
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PostPosted: Sun Feb 14, 2010 1:01 pm Reply with quote

Also ant penetrations for cables and pipes will need to be dealt with correctly. Ie. fire stop, pipe collars etc.
Ps not that familiar with domestic situations.
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