I am building an extension and have a query regarding the DPM and DPC layer, I am going to bring the DPM up and out over the block and then put a layer of 9" DPC on top. my question is what is the correct sequence regarding mortar layers is it ? Block, DPM, DPC mortar and then Block or should there be a layer of mortar between the DPM and the DPC ? I am just wondering if it is a bad idea to put essentially two plastic layers on top of ach other with nothing in between them ?
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DPM and DPC together
- Thread starter MRSOLO
- Start date
i will mortar bed the dpm and mortar bed the dpc. thus creating a mortar sandwich.
i have seen the whole lot done dry also, because of tight joints.
this connection is always going to be a weak point, but not so weak as to affect robust structural integrity requirements.
it's the same with lintels. where joints have been tight, i have seen these laid dry many times.
i have seen the whole lot done dry also, because of tight joints.
this connection is always going to be a weak point, but not so weak as to affect robust structural integrity requirements.
it's the same with lintels. where joints have been tight, i have seen these laid dry many times.
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