There are other methods for leveling low spots.
Leveling compound for nail down hardwood.
I would like to feather out the bad areas with a leveling compound before i lay my felt paper.
Mix the leveling compound to a creamy consistency.
No you should not use any leveling patching compound over a wood subfloor where you plan on driving nails into it.
The lower humidity level results the wood releases its humidity and the strips planks contract or shrink.
If you are nailing the hardwood floor in place choose cementitious leveling compound that you can nail through.
Their home was framed very poorly with a subfloor that resembles waves.
They do not have to be nailed down as the many nails used to hold the flooring in place will pass through the shingles as they are driven into the wood subfloor.
Subfloor must be securely nailed or screwed down to joists to prevent movement or squeaks.
Use builder s felt or shingles stapled to the floor to fill small low spots if you.
But to answer your question.
You can tack the shingles in place if you desire so they do not move around as you work on the floor.
Just not a mechanically fastened floor.
As far as i can see none explicitly state that the wood flooring can be nailed down through the levelling compound into the subfloor.
Some self levellers can be nailed through others you can t.
I m installing some hardwood flooring by bellawood.
I have some customers who are wanting a nail down hardwood flooring installation later this year.
Before you nail down hardwood flooring must be stored in a controlled environment within the above mentioned temperature and humidity.
Level wood subfloors the final surface must be flat to within 3 16 in a 6 radius or within in 10.
Most leveling compounds are sold in powdered form and just need to be combined with a little bit of water in order to be effective.
Use as many asphalt shingles as necessary to fill the low spots.
It is then recommended to use a humidifier to minimize extreme shrinkage effects.
Pour the powder into a 10 us gal 38 l bucket and begin adding room temperature water little by little until the mixture thickens to slurry.
The following quote is from their installation instructions.
For example you must know what substrate it s going to be applied to and what flooring is being installed over top of it.