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Old 07-19-2012, 12:56 PM  
nealtw
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Stuart: Like I said I don't work on brick. We do concrete foundations on a footing and there is no expectation of have one stick to the other so we put a groove in the footing for foundation to bite into and the we add rebar too. Just wondered why we don't put a membrain there too. We put vapour barrier under the slab and outside the foundation and still allow wicking in the wall.



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Old 07-19-2012, 01:26 PM  
stuart45
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Here's a photo of the DPC on the external skin of a brick/block cavity wall.
A DPC of some kind has been required on house walls here since the Public Health Act in 1875.
dpc_synthetics_small.jpg



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Old 07-19-2012, 02:07 PM  
nealtw
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So it's relatively new then. Learned something today! Thanks

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Old 07-23-2012, 02:11 AM  
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stuart45: Is my eye-sight that bad, or are there no weep holes in the bottom of that brick work?

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Old 07-25-2012, 10:41 AM  
stuart45
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Quote:
Originally Posted by BridgeMan View Post
stuart45: Is my eye-sight that bad, or are there no weep holes in the bottom of that brick work?
There does not like there is any. If the inner wall is blockwork the builders don't usually put them in, although the original designs for cavity walls had them.
When then inner wall is timber, as is a common type of build in the USA, weep holes are always put in at DPC level, or just below.


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