Hardiebacker Vs No More Ply Nmp - TilersForums.com

[On one]

One of my suppliers is going over from stocking Hardie to NMP
So I am in the process of looking up info on NMP and comparing the two if that is possible.
Now most people are aware of the fact that you have to be careful when cutting Hardie as regards the dust when cutting the boards. But there doesn't seem to be the same concern as regards NMP dust even though when checking the data sheet silicosis dust is mentioned?
Another note of concern is that it is that most well informed installers acknowledge that Hardiebacker does not add strength to the floor,yet this appears on a website of a supplier of NMP boards............

''Overboarding with a concrete backer board like no more ply strengthens your floor to reduce the movement and so prevents flexibility in the floor from cracking your tiles. Its cheaper and thinner than overboarding with ply and easier to cut and handle.''

Regards Confused.com

 

[J Sid]

Personality I would not use NMP again, had two failure's with it about 6 years ago.
Don't know if the boards have changed or recommend fixing method has changed since then.

 

[On one]

I have tiled over NMP before, but not fitted any. But looking on the NMP website it looks to be
50% heavier/denser than Hardie

 

[White Room]

Hardie for me, the NMP states about priming....

 

[Dave]

When installing NMP , you have to use their tubed adhesive in ribs and place the board into that but on cupped and caved floor boards I'm dubious about it taking up the voids , I discussed this with the NMP rep and he didn't fill me with confidence with his reply.
The boards are very sturdy and the NMP rep did say adhesive could be used as you do with hardiebacker but you would not get a guarantee if you didn't used NMP tubed adhesive.

I did use NMP on a chipboard floor and it was ok , but as a preference , then its hardiebacker for me.

 

[Old Mod]

This is what their installation manual says

 

[LM]

Guys have any of you used the yet
Multi-Pro MoistSure – The Stronger – Faster – Safer Building Board

 

[Ian]

Tried NMP once, didn't like it compared to hardie. The shiney surface didn't fill me with confidence and I like that the 6mm hardies have the rough grid surface and are pre marked at 200mm centres.

 

[On one]

The fact that NMP states that it only ''expands slightly'' and that ''8 screws per board is usually sufficient'' is enough to be some concern to me.
''expands slightly'' means on cupped floorboards the board is not 100% supported,
''8 screws per board is usually sufficient'' means 8 screws might be enough,it might be 10 or if your a real cheapskate you might be able to get away with 6!

 

[hmtiling]

Have used n.m.p. at least once every month for the past 5 years and never had a failure(touch wood). I've always used the n.m.p. glue with it.
Only used hardie a couple of times and didn't like having to lay it with adhesive.