Can I Use Anything Other Than Mortar Under The Hardie Board - Tiling, ceramics, marble - DIY Chatroom Home Improvement Forum


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Old 07-17-2012, 07:18 AM   #1
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can i use anything other than mortar under the hardie board


I am wanting to save time can I use anything else.to bond the Hardie.board to the subfloor like construction adhesive or something

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Old 07-17-2012, 07:26 AM   #2
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can i use anything other than mortar under the hardie board


No...............

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Old 07-17-2012, 07:32 AM   #3
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can i use anything other than mortar under the hardie board


No--the thinset is there to FILL VOIDS--not to bond the hardie to the floor---use powdered thinset.
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Old 07-17-2012, 09:47 AM   #4
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can i use anything other than mortar under the hardie board


Any DIY job is at least 50% prep work, skip a step and most likly the whole job fails.
Just how fast will it be when the tiles and grout crack and it all has to be done over?
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Old 07-17-2012, 10:26 PM   #5
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can i use anything other than mortar under the hardie board


Joelowrider,

Guess they told you? They are absolutely right.

Most people, (including many that install tiles often), do not understand why the need for thin set under all concrete backer boards. Like you they think it's to bond it to the floor. The thin set holds the board up, the fasteners hold it down. Without the supporting layer the board will move a tiny bit and over time you're likely to have some grout cracks or worse.

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Old 07-19-2012, 03:01 AM   #6
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can i use anything other than mortar under the hardie board


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Originally Posted by JazMan View Post
Joelowrider,

Guess they told you? They are absolutely right.

Most people, (including many that install tiles often), do not understand why the need for thin set under all concrete backer boards. Like you they think it's to bond it to the floor. The thin set holds the board up, the fasteners hold it down. Without the supporting layer the board will move a tiny bit and over time you're likely to have some grout cracks or worse.

Jaz
I'm assuming you screw the concrete board down while the mortar is still wet?
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Old 07-19-2012, 03:02 AM   #7
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can i use anything other than mortar under the hardie board


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Originally Posted by JazMan View Post
Joelowrider,

Guess they told you? They are absolutely right.

Most people, (including many that install tiles often), do not understand why the need for thin set under all concrete backer boards. Like you they think it's to bond it to the floor. The thin set holds the board up, the fasteners hold it down. Without the supporting layer the board will move a tiny bit and over time you're likely to have some grout cracks or worse.

Jaz
I'm assuming you screw the concrete board down while the mortar is still wet?
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Old 07-19-2012, 07:18 AM   #8
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can i use anything other than mortar under the hardie board


Yes--screw or nail while the mud is wet.

This is where logic and common sense come into play----short of writing a book in order to help a member--the pros here often assume that a member will figure out the steps needed to complete the job.

Not all posters have those two helpful qualities----Mike---

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