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Posted by stevej on June 20, 2009, 6:24 pm
Hi
I have just had a conservatory built, concrete base, dwarf wall -
usual thing. I have a query with something, I am hoping someone here
can please advise.
The concrete base is in a plastic sheet, the internal wall is built on
the base and the external wall built on the footings leaving a cavity,
outside the base and plastic sheet. The doors have been fit on to the
external wall thus leaving a gap between the door casing and the base,
this has been filled in with concrete. My question is 'what is
defending that fill in concrete from rising damp' ? as it is outside
the plastic sheet.
Thanks
Steve
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Posted by RicodJour on June 20, 2009, 6:52 pm
> Hi
> I have just had a conservatory built, concrete base, dwarf wall -
> usual thing. I have a query with something, I am hoping someone here
> can please advise.
> The concrete base is in a plastic sheet, the internal wall is built on
> the base and the external wall built on the footings leaving a cavity,
> outside the base and plastic sheet. The doors have been fit on to the
> external wall thus leaving a gap between the door casing and the base,
> this has been filled in with concrete. My question is 'what is
> defending that fill in concrete from rising damp' ? as it is outside
> the plastic sheet.
There should have been a damproofing membrane on the external wall.
Maybe that was wrapped to cover the fill area...?
R
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Posted by Cwatters on June 22, 2009, 3:44 am
> Hi
> I have just had a conservatory built, concrete base, dwarf wall -
> usual thing. I have a query with something, I am hoping someone here
> can please advise.
> The concrete base is in a plastic sheet, the internal wall is built on
> the base and the external wall built on the footings leaving a cavity,
> outside the base and plastic sheet. The doors have been fit on to the
> external wall thus leaving a gap between the door casing and the base,
> this has been filled in with concrete. My question is 'what is
> defending that fill in concrete from rising damp' ? as it is outside
> the plastic sheet.
> Thanks
> Steve
Should be a DPC in the external wall that extends down and under the door
sill.
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> I have just had a conservatory built, concrete base, dwarf wall -
> usual thing. I have a query with something, I am hoping someone here
> can please advise.
> The concrete base is in a plastic sheet, the internal wall is built on
> the base and the external wall built on the footings leaving a cavity,
> outside the base and plastic sheet. The doors have been fit on to the
> external wall thus leaving a gap between the door casing and the base,
> this has been filled in with concrete. My question is 'what is
> defending that fill in concrete from rising damp' ? as it is outside
> the plastic sheet.