Help! flooring grade chip board

[timlee77]

Help job next week What is the best thing to use to adhere ditra to water resistant flooring grade chip board? was gonna use ardex af200 but they said might not take??

 

[kilty55]

hi timelee why ditra can you not over board with cement sheets ? whats the job detail

cheers

 

[White Room]

You have a post already on this subject......

 

[timlee77]

cant over board as i only have 18 - 20mm max height to play with.with ditra ect its gonna be around 20mm already. its tumbled marble over a room half screed and half flooring grade water resistant chip board on joists with ufh. builders have put in extra joists ect its solid and passes water test. i was putting ditra down with ardex af200 which says in the tecnical that it can be used on screeds and chipboard flooring and is for ditra. but the guy at ardex said if its green ply or water resistant it wont allow anything to adhere to it??

 

[timlee77]

i know but iv since spoke to ardex tec as i am using ardex af200 to fix ditra. and i told him it was water resistant chip board flooring and he said it might have a wax on it and it nothing will adhere to it? i cant overboard as i havent got the hieght do to thresholds ect

 

[timlee77]

found out the flooring is narbord sterling osb for humid conditions its 18mm and strong. anyone heard of this product and can i adhere to it ??