laying parquet flooring

[rachellewisnz]

Hi there, I've just bought some old parquet wood flooring blocks which have a layer of bitumen on the bottom. It seems to be very minimal, less than 1mm. On some blocks i can see the grain of the wood, others it a little thicker. Do i need to remove this before i lay the blocks? I've read that most people are removing it, but i also read somewhere that it is not necessary to remove. I will be laying them on a concrete floor with probably lecol 500 adhesive. Please help. Cheers

 

[breezer]

try a search, been done just a few times

but in short yes remove it, vaguley like build a house on sand foundations.

also check block sizes, not always all the same