Green Glue - - Drywall vs Blue Board - AVS Forum
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post #1 of 7 Old 01-17-2007, 08:00 AM - Thread Starter
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Blue Board seems to be the standard product used in my area. I am planning to do two layers of "a sheetrock" product with green glue between. Is there a disadvantage if the "sheetrock" product is blue board instead of standard drywall?

When asked, my thought was as long as BB is at least equal in mass to drywall, it shouldn't matter. The contractor said that BB is heavier, thus I thought it would be fine, maybe better. Am I right?
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post #2 of 7 Old 01-17-2007, 08:40 AM
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"Blue Board" is the brand name given to a type of gypsum board by National Gypsum Company .
"Sheetrock" is the brand name given by USG

If the "BlueBoard" is heavier per sqr. ft. , then you're better off because it means more mass.


BlueBoard explained by Bob Vila.
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post #3 of 7 Old 01-17-2007, 08:53 AM - Thread Starter
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Thanks for the comments.

Its kind of a confusing thread since local slang and brand names get into this. Kind of reads like "kleenex vs tissue."

The locals seem to indicate that blueboard comes with a layer of plaster on it, and you finish it by plastering the entire surface. Drywall wall the plaster is mostly limited to the seams. There are differences in how it interacts with moisture, too (I think). My suspicion is they are interchangeable for my purposes, as long as I go with whichever is heavier.
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post #4 of 7 Old 01-17-2007, 08:58 AM
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From what I read, the difference is the paper that covers the gypsum is treated for plaster to adhere to it easier.
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post #5 of 7 Old 01-17-2007, 09:02 AM - Thread Starter
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The Vila link pretty closely covers what I have gathered. I think I am still at heavier = better (w/i price limitations). I guess I wouldn't want to waste a lot of money on a nice plaster job on the layer to be covered, but I am not sure that will be necessary.
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post #6 of 7 Old 01-17-2007, 05:27 PM
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More mass is better. If the BB is indeed heavier than standard 5/8", go for it.

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post #7 of 7 Old 01-17-2007, 08:54 PM - Thread Starter
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Thanks Ted, that's what I thought.
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