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Blue board installation

 
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Old 06-20-2019, 01:41 PM   #1
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Blue board installation


How is everyone installing blue board corners for veneer plaster on outside corners?


Overlapping the exposed end with the panel on the adjoining wall,
so that the corner is completely encased in drywall. Or panel ends do not overlap at outside corners; their ends land flush with the corner of the stud. This void will be filled later with a corner bead and plaster.

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Old 07-03-2019, 06:10 PM   #2
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Re: Blue board installation


In my experience it doesn’t really matter. As long as it at least reaches the corner of the stud and you have enough meat to put corner bead on securely you’re all set. Doesn’t have to be board to board
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Old 07-04-2019, 04:45 AM   #3
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Re: Blue board installation


What would you recommend using to pre-fill a 10mm gap where the blueboard has been cut too short before putting the external bead on?
I've been supplied a dunlop product to finish the joints, but I don't know if id trust it for large fills as i never do blueboard jobs.
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Old 07-04-2019, 10:15 PM   #4
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Re: Blue board installation


My recommendation would be to cut the sheet back to the next stud and replace the piece. That way your corner bead fits and you don’t have to worry about filling a void and having potential cracking. The corner will be weak. If someone bumps it hard enough it’ll just break. Only take a few minutes to change the sheet.
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Old 07-11-2019, 09:01 AM   #5
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Re: Blue board installation


Prefill gaps with setting drywall compound. We always use regular drywall taping to reinforce plaster joints. Never mesh tape on joints. Tends to crack too badly. We never even use blue board any more. Haven for 25 years. Regular sheetrock with a bonder is how we always do plaster. But then again we almost always put a colorant in our finish coat and apply a sealer when it is dry. Blue board does not take colored finish very well.
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