Zone Mortalis tiles

[The Lost Son]

Hi, so this is a double headed question. 

 

Firstly does anyone have any experience with the Zone Mortalis Tiles - are they sturdy, prone to warping etc. 

Secondly would they make a good base for terrain in a non Necromunda style (straight 40k city fight styling). 

 

So with recent talk of new terrain and having moved recently into a house it's got me thinking of building a gaming space, but space is still limited so was thinking of making it in 1' square sections to be combinable but also store able. I'm assuming that affixing the tiles to wood would be a safer option but will they be workable or is it going to be easier to build each square from scratch? 

 

Thanks in advance for any response