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Old 10-19-2009, 11:47 PM   #1
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Installing Hardi board

i am putting down a tile floor around 500 sf .i bought 4x8 sheets of hardi backer an am using modified thinset and using 2 3/8 galvanized ringshank nails 4 the nail gun set to 80 psi. being that it is thinset in with modified would this work in your opinions.?


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Old 10-20-2009, 06:44 AM   #2
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Installing Hardi board

firreal---------Be careful with such long nails!!!!

If your house was built before 1970 you may have electric conduit under the sub floor.

Check with hardi I believe they suggest 1 1/4 " roofing nails.

With hardi the firmset is a must. I prefer durock myself.-MIKE-


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Old 10-21-2009, 06:41 PM   #3
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Installing Hardi board

The cheapest unmodified thinset you can find will be fine under the Hardie, next time use Ditra, lighter, faster, easier, better product.
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