The chipboard is flat, has no deflection and is in a kitchen. It covers approx 11sqm.
A Hardibacker rep as stated that Hardibacker boards can be laid directly onto 18mm chipboard and screwed down. If the chipboard is flat there is no need to use addy.
Is the above true?
Also, I’ll be using Fastflex next week. I have told the customer I have to buy a special solid bed tipped trowel for spreading Fastflex so I added £20 to the estimate. They came back and said they will not pay for it. It’s ok to use a 10MM half round trowel for laying 500x500 tiles?
Cheers
Sean
A Hardibacker rep as stated that Hardibacker boards can be laid directly onto 18mm chipboard and screwed down. If the chipboard is flat there is no need to use addy.
Is the above true?
Also, I’ll be using Fastflex next week. I have told the customer I have to buy a special solid bed tipped trowel for spreading Fastflex so I added £20 to the estimate. They came back and said they will not pay for it. It’s ok to use a 10MM half round trowel for laying 500x500 tiles?
Cheers
Sean