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Old 07-23-2010, 01:39 PM   #1
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Building a fire rated wall - Best methods.

What is the best way to build a fire rated wall assembly? Good question...

I have been looking into just this the past 36 hours and have found many options. Which one is the best?

Looking for answers...


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Old 07-23-2010, 02:42 PM   #2
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Probably depends on where the wall is being built.

Might want to give a description of the application.


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Old 07-23-2010, 02:56 PM   #3
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OK, here is my recipe for a fool proof firewall:

On one side of the wall, pour a 12 foot thick slab of concrete. The other side of the wall should be placed on the moon, and should also be encased in 12 feet of concrete.

I can guarantee fire will not cross this assembly.

This however might be overkill, so you might be better off providing some helpful details that would provide context and meaning to your question
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Old 07-23-2010, 08:35 PM   #4
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More specific. "The best way to marry cement board with drywall?"

I build a lot of fireplace features and the specs often call for cement board above the fireplace anywhere from 8" - 18" (sometimes more). I have had great success with this technique and was wondering after boarding my daughters bathroom in Green EBoard if I could be able to use the Smooth Side out for my fireplace features.

I wonder if this is allowed?

I emailed the head office and have not had a chance to weed through the information.

Green EBoard comes in 4'x8' sheets (and 3'x5') both 1/4" and 1/2". It is bright white not green in colour - this is the confusing part (on a quick walk by you might mistake it for Hardie Board). I had good success tying in this Green EBoard and regular drywall together for a smooth transition. I was using the rough side out and imagine the smooth side would be night and day different.

Still playing around with the stuff. So far I love it.
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board , eboard , fire , green , tile

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