Cost.

Polythene vapour barrier costs peanuts.

(DPM is more like M&S Cashews)

Personally I'd hang on to your spare DPM for the next 'grand design', or as a durable weathering material for materials stored outside during the next few days of blizzards. (Yes - I've just completed my own oversite, so I've given this some thought myself - plenty of spare DPM and polythene)

Basically - DPM is effectively just a very durable vapour barrier, for obvious reasons.


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KEVIN BRADY, Oxford
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"in2minds" wrote in message ...
vapour barrier and DPM ?

other than the thickness and colour that is

and, as I have plenty of DPM left over, could I use it instead of the
vapour barrier ?

thanks
LJ