SPC flooring

[MariaD]

Hi all,

I’m planning to install SPC flooring tiles in my new build home and the SPC tiles I’d like to use are with built-in underlay. I’m wondering if I still need to lay down a separate roll of underlay underneath or similar, especially for moisture control and/or sound insulation both for concrete floor, which is downstairs and OBS panels, which are upstairs. 

I also would like to know if, to properly install SPC tiles on OBS panels, should this be smooth out?

 

I will attach pictures of both floors. 

 

Thanks in advance for any tips

[Nickfromwales]

Maybe good if you can post a link to the exact product in mind.   

[MariaD]

35 minutes ago, Nickfromwales said:

Maybe good if you can post a link to the exact product in mind.   

something like this: Beige Slate - Wood Innovations

[Nickfromwales]

The floors with OSB, TBH, are pretty bad. I'd lay a 6mm plywood over all of these, and then you should be fine to just lay the product straight on top. You may want better acoustic control for the first floor, so consider using this (LINK) for that. It'll also take out any minor defects / bumps and lumps.

 

For the concrete floors, I doubt you need sound insulation, just an EPS type of underlay (LINK) that you tape the joints with, and that will act as a moisture barrier.

 

You may want to use XPS insulation (LINK) to give better thermal insulation, which will also do the job of moisture barrier, if that floor is particularly cold. This can be bought in different thicknesses, so if you can get 10mm or more down, then the more you put the warmer the floor will be / feel. The thicker stuff will also help with lumps / bumps on the concrete floor too.

 

 

[MariaD]

24 minutes ago, Nickfromwales said:

The floors with OSB, TBH, are pretty bad. I'd lay a 6mm plywood over all of these, and then you should be fine to just lay the product straight on top. You may want better acoustic control for the first floor, so consider using this (LINK) for that. It'll also take out any minor defects / bumps and lumps.

 

For the concrete floors, I doubt you need sound insulation, just an EPS type of underlay (LINK) that you tape the joints with, and that will act as a moisture barrier.

 

You may want to use XPS insulation (LINK) to give better thermal insulation, which will also do the job of moisture barrier, if that floor is particularly cold. This can be bought in different thicknesses, so if you can get 10mm or more down, then the more you put the warmer the floor will be / feel. The thicker stuff will also help with lumps / bumps on the concrete floor too.

 

 

Thank you Nickfromwales :-).

[Nickfromwales]

9 minutes ago, MariaD said:

Thank you Nickfromwales :-).

Just stick an @ sign in the reply, and then the first letter of a members name you'd like to mention, and you can choose from the drop down list  

 

Other will comment when they pass through