DPM underlay for engineered wood flooring over wooden subfloor?

27 Aug 2012
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United Kingdom
Hi all

I need to install an engineered wood floor this weekend. Timing is critical - it has to start tomorrow.

It's engineered wood flooring, being installed over a plywood subfloor. The room has a lot of built-in furniture (about 1/3 of the room) and I'm not installing flooring there. I want a nice heavy underlay to smoothe out any imperfections - I don't like using those fibreboard panels.

Last time I did this, I used Duralay Duratex as the underlay because it had no DPM. I understand that underlays with a DPM should be avoided on any type of wooden subfloor. However, I've had a bit of a nightmare and my order has been cancelled this time. I am without underlay. I've called interfloor and they've been monumentally useless in finding a stockist near me (SE London). I've spent an hour on google, and cannot find a stockist with Duratex, Multitex, Tuplex, or even that wood-fibre stuff on a roll. All I'm able to find is a stockist that has Timbermate XL, which has the built in DPM.

My questions are:

1) does anybody know of a stockist, open Saturdays, in SE London or Essex that stocks a suits a suitable underlay?

2) If not, is it really bad practice to use timbermate XL? A third of the floor is not going to be covered, and there is ventilation already through airblocks (the void below the floor is a good 2 feet deep).

I'd appreciate any help! Thanks.
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Don't use TimbermateXL, have you tried calling your local independent Flooring Shops? The business I work for are on the Surrey/Sussex Border and would sell direct to you provided we had the spare stock.

You could try Volante's, they may be open on Saturday mornings.
Thanks. I've called all of the local companies I can find, but nothing. Getting a bit desperate now.

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