Does a garden wall (attached to a house) need a dpc?

[mrbg07546]

We are replacing a garden wall which for our side gate as it’s getting a bit weak(and wasn’t built well)

Does a garden wall attached to a house need a dpc?

As you can see I have attached a garden which will be replaced. It currently has a dpc but it cause it to be a bit weaker as that’s where it was a bit loose.

 

[Roy Bloom]

At first glance, no it does not need a dpc because it is not connected to the house wall.
But we can only see one side of this wall.
However it looks like the wall would bridge the dpc of the house wall if it was connected.

If it is connected to the house wall, you could use either a normal dpc, or a vertical dpc, between the house wall and the garden wall.

Not using a dpc might give rise to discolouration of the bricks. (as can already be seen in the lowest course of bricks)
A professional could advise on which bricks to use, for the lower courses to avoid this.

 

[mrbg07546]

That’s a the neighbours bit. There’s about 3 courses attached above door to our house

 

[Roy Bloom]

You need to be more specific about which wall is which, and where it is attached or not.

 

[23vc]

As above can’t work out what’s going on from the pic, which seems to show 2 walls not attached to each other. A pic of the “attached” bit may help

 

[^woody^]

No you would not put a DPC in a garden wall for the same reason you have to rebuild the existing wall!

 

[23vc]

No you would not put a DPC in a garden wall for the same reason you have to rebuild the existing wall!

Is a course or two of class Bs still ok by that logic?

 

[^woody^]

Is a course or two of class Bs still ok by that logic?

Yes, or slate. The issue is having a wall that is able to slide on a physical DPC.

I don't know why a DPC would be necessary in the garden, perhaps just for aesthetics to stop to appearance of a damp base? However the flip side is a garden wall is prone to rain soaking in and moving down and settling on any DPC.