DPC on inner leaf under thermal blocks

SodiumCooled

Hi all, what is the normal approach here? I know the DPC loops up over the top of the first internal row of (thermal) blocks but would DPC normally be specified under this row of thermal blocks too? Just looking at my construction drawings for block work and see that it isn't and wondering if this is unusual - I'd have thought it would be needed.

sydthebeat

any chance of a screen grab of the detail? we'd need to see the level at which the block is being incorporated

SodiumCooled

DPC detail.png

https://www.boards.ie/discussion/comment/119178114#Comment_119178114

I don't have a soft copy but I quickly mocked it up and attached below. Read line is radon, blue line is DPC. Just asking out of interest really as I like to know the ins and outs and dont want asking the arch questions all the time.

sydthebeat

https://www.boards.ie/discussion/comment/119178387#Comment_119178387

in that detail there's absolutely no need to for a DPC under the thermal block. Theres no risk of damp coming up from below the thermal block.

hesker

Just asking out of interest. Is there a requirement for a dpc on top of the raft and would it overlap with the dpc that loops over the thermal block