adura vinyl tile over warmboard radiant ?

[k52]

Hi, I need to know if anyone has placed the Adura tile (vibe pattern) over a Warmboard (radiant panel)?
Is an underlayment necessary to hide tubing, (keep it from telegraphing through)?
If so what underlayment over radiant is best?

Floating sounds like an easy method and it would allow for access to the radiant tubing if necessary, but would versa-shield or halex, (mentioned on this forum), work/hide well enough?

AND unfortunately I have a few nail heads and warmboard seams that are high !!
P.S. I'll be calling mannington techs as well.

thanks K52

[Jim McClain]

Here is a link to the Warmboard website for more information (not so much for you, k52, but because you mentioned it and others may not know what you're talking about): Warmboard, Simply Smarter Radiant Heat. Here ate the notes on installing vinyl flooring over Warmboard: Installing Vinyl Over Warmboard .

Although they say you can use 1/4" plywood, I would suggest a minimum 3/8". One of the reasons for using underlayment panels for vinyl flooring is because the temperature of the sheet vinyl should be kept lower than for other types of flooring - the Warmboard notes for vinyl indicate 85° F, but check with the manufacturer of the vinyl for their recommendations.

You shouldn't require Versa Shield underlayment because the Warmboard product already has moisture mitigation in the use of their aluminum coating (according to them). Halex makes other underlayment panels too (they manufacture Versa Shield), so using one of their plywood panel underlayments would be fine.

You should ask the installer of the Warmboard to check the problems you have with the raised nail heads and peaked seams though. Those will have to be corrected prior to installation of the underlayment panels and the Mannington Adura.

Jim

[stullis]

Totally agree with Jim on this one.

[k52]

thanks for the help. Is halex cheaper and or better than 3/8 plywood?

why or why not?


I think my radiant guy has the temps set/designed for operation at 80 degrees.

AND are you suggesting ACX ply so that the surface under the tile is smooth and doesn't transfer irregularities?

thanks again

got to go to work but will check later.

[Barry Carlton]

k52 said thanks for the help. Is halex cheaper and or better than 3/8 plywood? why or why not? I think my radiant guy has the temps set/designed for operation at 80 degrees. AND are you suggesting ACX ply so that the surface under the tile is smooth and doesn't transfer irregularities? thanks again got to go to work but will check later.

Yes Halex and/or Matrix is so very superior to ACX. It is made fromn a better wood base and is also 5 ply vs the crappy 3 ply that most suppliers sell to the average home owner.

[k52]

thanks guys. The temps for some parts of the house might be 90 degrees (hard to read specs because the house is large and the specs are coded).

I'll check with the mfg. regarding that heat load. (and I'll re read the reference to the Mannington specs.)

all for now thanks again

k52