Parquet Flooring and Flagstones, Problem!

[amason79]

My wife and I are renovating an 1870's house. Under the lounge carpet is what I presume to be the original Flagstones "great" you might think!

Problem is I was hoping for a screeded floor, as we intend on laying parquet flooring in a double herringbone pattern and as I am sure you are all aware, a flat surface is required. Well the flagstones by nature are not flat!

Here are my options as I see it:

A. Cover the flagstones in a thin screed, a shame to waste them and thin is not good, cracks etc.

B. Take out the flagstones and try to sell them on ebay, lay a new 4" concrete floor for the parquet flooring.

C. Forget it and lay some new carpet.

If anyone has any advice it would be much appreciated!

 

[WoodYouLike]

D. Install plywood / chipboard on flagstones. Sand this to smooth and level surface. Install herringbone.

 

[amason79]

I had thought about using ply, how would I fix it to the flagstones, to get a firm fixing?

What thickness ply would be best?

Would 6MMX2440X1220 be ok?

 

[WoodYouLike]

6mm is too thin, you need at least 16 - 18mm for a firm base for the wood blocks,

 

[masona]

Just to add on, make sure the plywood is exterior or WPB

 

[amason79]

Gee!

If it needs to be of that spec, then it will cost more than the 20mm parquet!

(Well not quite £195 that's a bit much for what is essentially **** wood)
How about 12X2440X1220 Chipboard?

Maybe I should go for ripping the stones out and concreting!

Or just plain simple boring carpet!

Why so thick its on to a solid floor not joists?

Plus I don't really want to add on another 38-40mm height, 20mm is ok!

 

[WoodYouLike]

Why so thick its on to a solid floor not joists?

A) you need to level your exisitng floor out as much as possible.
B) your installing a wood block pattern that needs a solid base, otherwise your floor will move and finaly come disconnected from the base.

 

[Nige F]

Dig the bugger right out and install insulation slab and damp proof membrane.as per new build.....the concrete can be levelled smooth enough to take the parquet.........Just what I`m going to do in one of our rooms going to use reclaimed reclaimed wood

 

[WoodYouLike]

Nige F: reclaimed wood = 'reclaimed' bitumen