Laminate floor install over parquet

[webpp]

Hello all and happy new year,

I have come across a problem and I need your help and advice.

I have a project where I need to install new laminate flooring, however the new laminate flooring needs to move up to be leveled with the existing ceramic tiles. See the attached sketches.

The new flooring has a thickness of 12.7mm, what do you guys propose to fill in the gap of 37.3mm?

 

[Gregor]

Two layers of OSB (15+22mm) could do the trick.

 

[webpp]

Two layers of OSB (15+22mm) could do the trick.

OSB over OSB, won't that make noise when moving or kids running on the floor?

 

[Cheese]

OSB over OSB, won't that make noise when moving or kids running on the floor?

Glue and screw each layer of the OSB.

 

[Gregor]

Glue and screw is one option.

Easy solution in case the original floor can be screwed into: put the thicker OSB ontop and screw it all together, shouldn't need glue and in case you have movement somewhere (test prior to adding the topping) just add a screw. Layering the OSB so the seams dosn't align helps.

Should you care about noise get laminate with cork backing and/or put footfall sound insulation below the laminate (adjusting the OSB thickness to the changed situation, the insulation is available as somewhat pressure resistant foam sheets in several thicknesses).

In case you like your ears and warm feet think about Cork (which is also available in click variants as the usual laminate) instead - little more expensive but for worst case you can sand it down should it (or the top coating should you go for a sealed kind) show signs of wear and reseal it (several times in case you pick the type with thick cork topping). Also more resitant to dropped stuff, localised high pressure (like from cabinets, table legs) might leave marks but it's quite easy to fix spot-damage in cork (compared to laminate).

 

[webpp]

Glue and screw is one option.

Easy solution in case the original floor can be screwed into: put the thicker OSB ontop and screw it all together, shouldn't need glue and in case you have movement somewhere (test prior to adding the topping) just add a screw. Layering the OSB so the seams dosn't align helps.

Good Stuff!

Yes the original floor is parquet wood tiles, so you can screw into it.

I was wondering how does OSB handle humidity, does it expand/contract a lot?

 

[Cheese]

Also, it's important to stagger the seams of the OSB layers.

 

[webpp]

Also, it's important to stagger the seams of the OSB layers.

Got it Cheese, thank you for the very important tip.

 

[AlexThePalex]

I was wondering how does OSB handle humidity, does it expand/contract a lot?

No, it doesn't move a lot. It's layers of wood chips pressed and glued together, in different directions.  Due to it's stability and low cost it is often used for sub flooring.
http://www.apawood.org/osb