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Looking for ideas for cavity closer for my wonk


Digmixfill

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My new internal walls are going up fairly straight, which means the cavity size in some places varies quite a bit against my wonky outer skin.

There are a few places where the cavity is > 165mm  wide.  Any suggestions for cavity closing my wonk?

Edited by Digmixfill
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Thanks for the suggestions. Food for though with more than one option.

 

3 hours ago, Russell griffiths said:

Very rigid rockwool, with a dpc stuck to one side. 

A DIY Rockclose type of thing?

 

3 hours ago, PeterW said:

Standard cavity closers bonded in with low expansion foam

Are standard closers meant to be fastened to the brickwork? There will one or two places where a 150mm closer probably wont overlap the brickwork on both sides.

 

2 hours ago, tonyshouse said:

Cut sheet insulation into the open cavity , I closed off with plasterboard fully bonded to reveal then wet plastered the walls 

 

http://tonyshouse.readinguk.org/274-2/

Are building control ok with this approach? I thought they expected some kind of fire retardation in the closer?

 

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9 hours ago, Digmixfill said:

Are standard closers meant to be fastened to the brickwork? There will one or two places where a 150mm closer probably wont overlap the brickwork on both sides.


What are your inner / outer skins ..?

 

The PolyPipe closers have a 250mm plastic liner with removable foam sections to reduce down the cavity. 

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7 hours ago, PeterW said:


What are your inner / outer skins ..?

 

The PolyPipe closers have a 250mm plastic liner with removable foam sections to reduce down the cavity. 

Inner is 100mm celcon. Outer is 235-240mm clay brick.

 

Polypipe WCF200 would do the job nicely, but my they're pricey ?

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3 hours ago, PeterW said:

 

How much are you being quoted..?? Think I paid about £6/ex-VAT

 

Quick search found this http://www.discount-trade-supplies.com/shop/product/1925-Multi-Width-Insulated-Cavity-Closer/

 

 

The first price I came across for the WCF200 was £54 inc VAT - no indication of multiples or a pack, so i'm taking that as each. Apparently that's with 18% off rrp.

 

 

 

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