fixing hardibacker 250 to a highly glossed floor

[jay]

I actually forgot to screw one to the floor but used sbr with the addy and it stuck, I was advised from a shop to nail and adhesive under the hardie then remove nails:yikes:

wow with advice like that you don't need enemies fingers crossed for you

its a bit like plaster boarding a ceiling years back they said just use stab (adh) and nails to be removed when dry
after many failures they now recommend screwing as well

just to add you nail through a small scrap piece of plasterboard into new ceiling when dry remove if you understand/////

 

[White Room]

Thats scary:yikes::yikes:

 

[jay]

yes and in the end insurance companys stoped paying out

 

[White Room]

Was that onto timber joists jay

 

[jay]

yes strait on to timber might be one of the reasons they use metal battons now:8:

 

[White Room]

Never used an adhesive onto joists:yikes:

 

[jay]

Broken Link Removed - Cached - Similar

cant seem to get csr one to work deffo recomend it with screws

 

[kilty55]

cheers for the advice guys

thing is dont hardie say you can use clout nails to fix? if this is the case and the addy didnt stick you could find yourself in hot water


also about the addy taking up the voids,,,thats fine but if it isnt stuck the the sub floor surely that stil leaves a sligght space for moverment?

 

[jay]

cheers for the advice guys

thing is dont hardie say you can use clout nails to fix? if this is the case and the addy didnt stick you could find yourself in hot water


also about the addy taking up the voids,,,thats fine but if it isnt stuck the the sub floor surely that stil leaves a sligght space for moverment?

you can use clouts as stated but screws are far better
addy between floor and sheeting shouldnt move if its screwed right its just used to keep sheeting flat and not taking the shape of the floor

hope that helps

 

[Rob Z]

The CV here in north America is that you should use an unmodified thinset (no latex, no polymers, no additives) under the panels. As Dave and Jay said, that material is there to just fill the voids. There has been a lot of testing at the lab for Tile Council of North America that has demonstratred that the floor is actually better constructed for tile if the cbu's are NOT glued to the floor with adhesive (and only fastened with screws or nails).