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Old 08-25-2009, 08:10 AM   #1
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hardibacker on a roof


A friend is suggesting i use hardibacker board as an underlayment for a rubber roof that gets some foot traffic. Any opinons on that?

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Old 08-25-2009, 08:16 AM   #2
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hardibacker on a roof


Hardi backer does not provide any support for walking/standing

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Old 08-25-2009, 08:18 AM   #3
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hardibacker on a roof


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A friend is suggesting i use hardibacker board as an underlayment for a rubber roof that gets some foot traffic. Any opinons on that?
I never done it that way, but see no reason why you could not.
There are walk pads made by manufacturers for that type of situation that you install over the roof after it's been completed.

You can find materials for both methods on line at places like ABC Supply and see which method is best for you.
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Old 04-26-2012, 02:10 PM   #4
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hardibacker on a roof


Hardibacker is meant to be used over a solid underlayment like 3/4" plywood. I wouldn't use it by itself if it's going to be walked on even occasionally.
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Old 04-26-2012, 02:26 PM   #5
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hardibacker on a roof


And what would you gain by doing it? It's not water proof, will just crack if not properly supported, will just add more weight to the roof, more places for water to leak in.
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Old 04-26-2012, 02:52 PM   #6
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hardibacker on a roof


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A friend is suggesting i use hardibacker board as an underlayment for a rubber roof that gets some foot traffic. Any opinons on that?
Do you mean as an underlayment or as a topper?
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Old 04-26-2012, 02:54 PM   #7
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Do you mean as an underlayment or as a topper?
You are trying to respond to a post from 2009, and submitting a question to a new member (first & only post) that has not been back since that time.
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Old 04-26-2012, 04:27 PM   #8
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You are trying to respond to a post from 2009, and submitting a question to a new member (first & only post) that has not been back since that time.
I did not look at the thread origination date.

I just saw the bump by Tomboy123

Good catch....
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Old 04-26-2012, 11:01 PM   #9
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hardibacker on a roof


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You are trying to respond to a post from 2009, and submitting a question to new member (first & only post) that has not been back since that time.

I often wonder if that is a forum joke by people lurking waiting for an unsuspecting member to bite on. .,

Digging up the dead threads.,hahahaha.,Believe me I have done my fair share of responding to the threads of the dearly departed.

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