Stud work in refurbishment - on joists or on floorboards?

[Nick Pain]

Hi All
Some advice would be appreciated.

We are doing a full refurbish on our house at the moment, fitting underfloor heating throughout amongst a lot of other work.

All the stud walls and rotten chipboard floors have been removed on the first floor in preparation for the new layout. The new floor is going to be 22mm thick engineered wood with an oak finish laid onto the joists with no subfloor as the engineered wood is strong enough not to need one.

Am I best to build the stud walls onto the engineered flooring as you would with a chip or ply subfloor or put the stud walls directly onto the joists adding noggins where the sole plates do not line up with joists?

Thanks in advance for any advice!

 

[geraldthehamster]

If you're engineered flooring is in random lengths, it's going to look a bit odd once you've cut it so each end is supported on a joist, not to mention the wastage.

Cheers
Richard

 

[motorbiking]

I'd butt the floor to the studs rather than build the studs on top, easier to replace damaged floor boards and may give you some benefits when running services. It also gives you a bit of expansion room but it makes the job of laying the floor much harder.

The problem you might have is securing the boards to the floor properly and still hiding them in the tongues.

I assume you are not having an oak finish in the bathrooms?

 

[vinn]

Allow your flooring to flow through a room before erecting a stud wall.
Check with the floor Mfr's ref necessity or not for a sub-floor.

 

[Nick Pain]

- No oak floor in the bathrooms - tiles on tanked wet room floor

- Manufacturer says it's fine to use as a floor direct on joists

- What are the advantages / disadvantages of floor before or after stud work?

 

[vinn]

With respect, just do it, its the professional method. Why make work and difficuties?

 

[Nick Pain]

Just do which?

1. Subfloor then stud then finish floor?
2. Engineered floor then stud?
3. Stud work first then floors between?

 

[Deleted member 174758]

Today I've been out dealing with the problems caused by building stud walls over chipboard sheeting as opposed to building the stud walls then installing the flooring. I was dealing with the aftermath of a flood and I can assure you that having to cut out 15 or so sheets of chipboard and then put new noggins in beneath a stud wall to support it is no fun. Put the studs in FIRST. You may never need to do what I was doing, but if you do you'll appreciate why that becaomes a better choice

 

[vinn]

J&N,
No way. Why create work, & expense, for yourself on the basis that there might be a flood at some future date. Taken to its logical conclusion why not build houses on props in case of a flood?
Or ban all flammable construction materials because of the possibility of a future fire?

Hard cases make bad law.

Believe me, I've extensive experience on platform timber frame structures, and the sub-floor goes down first every time & then the stud walls are raised on the sub-floor. Thats why its called platform framing.

 

[foxhole]

Does not take a lot of water to ruin engineered flooring, had a dishwasher leak that ruined 200 sq metres of solid oak flooring.

 

[motorbiking]

particularly oak. a small amount of water or plaster, cement etc will blacken it.