Dpc Under Hardiebacker - TilersForums.com

[Ben_A1990]

Hi all

Please could somebody let me know if a DPC is required with HardieBacker? Taking up the fake wood floors reveals a DPC. Would Hardiebacker under ceramic floor tiles be enough by itself? or do we need a roll of damp course?

Thanks

 

[Qwerty]

Any photos of the subfloor or DPC you referred to?

 

[Spare Tool]

Only a guess as no pic but most laminate wood floors generally have a thin foam membrain laid loose underneath, its more for cushioning than a dpm, if its just that remove it and stick and screw hardi straight onto wood substrate..

 

[Qwerty]

He may be referring to bitumen covering on the floor

 

[Spare Tool]

He may be referring to bitumen covering on the floor

Never thought of that, hardi wrong choice then if that's the case..

 

[Stef]

Only a guess as no pic but most laminate wood floors generally have a thin foam membrain laid loose underneath, its more for cushioning than a dpm, if its just that remove it and stick and screw hardi straight onto wood substrate..

On reading the post I would think that it's the foam under the laminate.

 

[Ben_A1990]

Thanks for all the prompt replies.

I will take up both flooring later and put up photos, got a few obligations this afternoon. Will be about 8pm, if anybody is online to have a look and reply tonight I would be extremely grateful.

Cheers

Ben

 

[Time's Ran Out]

Can't wait!

 

[Ben_A1990]

The green type says DPC (and other things) and is above an old layer of tiles. Seems really solid underneath. This is in the hall.

The grey one doesnt say anything and is in a garage coversion, doesnt sound as solid underneath.

Cheers

 

[Chalker]

The dpm can be thrown away. But the vinyl tiles will need a different approach