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Types of DPC


BadgerBadger

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Just buying DPCs for our masonry build and have found there are lots of types!  Basic polyethylene DPC is comfortably the cheapest, but then there are "high-performance" or "housing grade" variants that use up some more pounds.  I had assumed everyone just used basic polyethylene but the wide availability of other types in merchants have made me wonder if I've missed something.

 

We'll be using a wide DPC to form a cavity tray, so are the high-performance ones better suited and offer more flexibility etc.?  No radon requirements or anything, but happy to switch if it's the better option.

Edited by BadgerBadger
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Your internal dpc is better done in high load dpc

 

Its normal to leave 200 mil hanging down to attach to your floor membrane at a later date Presuming you are having block and beam floor

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