I'm not sure what kind of underlayment. It hasn't come in yet. We ordered what they suggested. The floors are Siberian oak - engineered and they will be floating. No glue.

Set the depth of your circular saw to the thickness of the plywood and parquet and cut the plywood out. Then replace it. The cost will be insignificant, but the labor savings will be huge.

Thanks for the reply. It's concrete, but I doubt it would contain asbestos, but I'll check it out. I'm buying the Robbins Austin Plank at Lowes since it's 3 blocks from my house and the price was very competitive. They carry Bostik's Best, but I'll also check to see what Robbins recommends. About the removal of the Parquet....floor scrapper? Any prep needed before laying new flooring. The remaining sq. footage I'll be installing has carpeting so it's not so hard to remove. Thanks, Dave

Your home is beautiful. I think it'd look nicer matched color-wise to the parquet. Does it attach to the kitchen as well though? I actually really like the parquet - I have a small landing with parquet but it's oak that lightened over the years was wondering about refreshing it & making it a bit darker. Is yours old original parquet & have you ever done that?