Have a substitution offered;
Any one specified, used or have any experience with or information about:
NO-COAT TRIM ACCESSORIES MANUFACTURED BY STRUCTUS BUILDING TECHNOLOGIES, INC.
It’s recommended for use with abuse-resistant gypsum board and is in our specification as such. Seems to be OK.
I have installed a sample corner bead at home and hit it with a broom handle. It’s more resistant to denting than typical galvanized corner bead.
We’ve specified their No-Coat Smart Series UltraCorner corner bead as an alternate in lieu of extruded aluminum corner bead, in conjunction with impact-resistant gypsum board
This looks like a very interesting–if not flashy–product. I just checked out the web site and ordered the samples.
As a general question, are y’all specifying metal trim or (ordinary) plastic trim for drywall? I’ve continued to specify metal, but wonder if there’s a better way.
Dave: Which ASTM is that?
John:
We just specify metal–typical galvanized trim, and extruded aluminum reveals. For exterior cement plaster soffits, zinc trim or extruded aluminum trim (with coated contact surfaces to stucco).
We still spec the regular USG trim shapes, but…
This product line does look interesting, but I am concerned about the feather edge of the joint compound on the face of the trim [note on web site details that compound does not cover the entire flange; edge could be iregular, unsightly, and could flake off when dry if too thin].
Maybe an undue concern[???]
Also, appears to be less labor intensive [but does cost change?]; and may be overkill for regular installations where abuse is not an issue.
I recently specified Gordon’s “structural corner trim” for a project where we wanted more durability in a corner, but I have not seen it in place. It’s an extruded aluminum corner bead with thicker material at the corner, taped-in like regular bead. Corner guards are not attractive, and I’m tired of seeing dinged drywall corners in so many places on so many projects. (Even my own house!) I’m starting to think that every corner in every corridor should be more durable than the standard corner bead.
I also went to the website for this product and was very impressed. However, I couldn’t find anything on the website about a fire rating, which is important on most of our projects. It is plastic, after all. We use metal most of the time.
The paper on gypsum board and coatings on other types of gypsum panels (not to mention finishes such as paint, wall coverings, paneling, etc.) are also combustible, and typically burn off during the ASTM E 119 tests, leaving only the gypsum intact. The use of plastic trim is negligible; and if you check GA-600 or the UL assemblies, you’ll notice they don’t even address trim in the list of components.
We usually specify metal, but one client has us use the paper faced metal type. They are tired of nail pops. It has been successful in these high end residential, i.e. not a whole lot of user abuse products. We also specify setting type compound for the paper faced product.
One client wants the plastic. They are the only ones requesting it.
I also ordered the samples of the Structus products.
I have spec’d NO-COAT paper-faced structural plastic corners for years & always suggest this to my clients for institutional projects. I originally added them to my drywall master at the request of a client who had tested them extensively in public schools w/ very positive results.
The plastic backing is virtually indestructable & there are no mechanical fasteners, so dented or popped corner beads are avoided. The installed appearance does not look any different from standard metal beads or paper-faced metal beads.
Many of my clients have become fans and I haven’t rec’d any negative reports from the field.
Does anyone have thoughts regarding vinyl drywall beads versus galvanized steel?