OSB or chipboard for floating floor

[Grouse]

Dear All

My first post on this brilliant forum so thanks in advance for any guidance.

I am rebuilding/converting my garage to a home office so trying to do my best with insulation, within budget and height constraints.

On top of the existing concrete slab I am planning to lay 25mm PIR insulation board (constrained by limited headroom) and then either 18mm OSB or 22mm chipboard (both options T&G). Floor finish will be 12mm laminate floor.

My question please:

In the interest of having a solid-feeling floor, is there a preference between OSB or P5 chipboard. My builder is keen to fix down some battens to the concrete floor so that that OSB/Chipboard can be fixed down to the battens to provide some rigidity - but I am concerned these battens will just become cold bridges.

Your thoughts greatly appreciated. Thanks.

Karl

 

[Swwils]

How much lower is your current garage floor level than the rest of the house?

 

[Grouse]

Garage is accessed from the garden with slab levels (before adding insulation etc) very similar between the two. Also, low ceiling height in garage. Hence 25-30mm is max amount of insulation.

 

[Deleted member 174758]

I reckon 8 x 2ft P5 t&g chip would be a better solution providing everything is properly glued and the joints are pulled up once and tight

 

[Grouse]

Thanks for your feedback. I had heard that chipboard tends to be squeakier than OSB - any thoughts on that?

 

[Deleted member 174758]

I agree