Experience with Betafix clips - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 16 Old 09-22-2017, 02:12 PM - Thread Starter
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Experience with Betafix clips

Does anyone have any experience with the Resilmount Betafix Clips? I purchased them due to the adjust-ability when trying to level my 115+ year old ceiling.
I have completed four rows using these clips and the ClarkDietrich 25 gauge furring channel. The were hard to get in the clips but they are solid.
I started my 5th row and noticed that the rest of my furring channel looks different. It's also easier to squeeze into the clips. If doesn't feel as solid as the first four rows
and that is why I am worried about the reliability of these clips. I contacted ClarkDietrich to inquire about the difference in the furring channel supply and I was told that
they all look as if they are 25 gauge. The difference may be that the first batch seems to have been hot dipped. And the second batch was coated by and electrical process.
I don't mind the channel being easier to clip in place as long as it doesn't drop two layers of drywall on my head at some point.
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post #2 of 16 Old 09-23-2017, 05:19 AM
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Quote:
Originally Posted by downfall21 View Post
...when trying to level my 115+ year old ceiling.
115+? Holy cow... is this a historic building? are the walls true 2x4"? What's the ceiling made of? This has to be before the time of asbestos. When did the house get outfitted with electricity? What was that called??? knob and tube or something like that... I would think anything you do would be a challenge.

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post #3 of 16 Old 09-23-2017, 05:46 AM
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It is not uncommon for the guy in the warehouse to mix up 25 and 20/22 gauge channel. You should be able to compress 25 ga channel with your bare hand to slip into a clip.
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post #4 of 16 Old 09-23-2017, 07:12 AM
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Sit two pieces on a table against each other and you should be able to see/feel the difference between them if they are different gauges.
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post #5 of 16 Old 09-23-2017, 10:53 AM - Thread Starter
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The older channel is definitely harder to squeeze. It actually hurts my hand when compressing it. The newer channel I can squeeze all day with no issues. I attached a picture showing the two for comparison.
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post #6 of 16 Old 09-23-2017, 02:19 PM - Thread Starter
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Quote:
Originally Posted by sirjaymz View Post
115+? Holy cow... is this a historic building? are the walls true 2x4"? What's the ceiling made of? This has to be before the time of asbestos. When did the house get outfitted with electricity? What was that called??? knob and tube or something like that... I would think anything you do would be a challenge.
It is historic. The studs are actually hand cut timber 2x4 actual size. Original walls and ceiling were wooden lathe and plaster. It did have asbestos but only from the addition of air vents back decades ago.
It had gas lighting originally and then knob and tube. It's still there but it's not energized. Everything I touch is now MC or Romex.

This has been a challenge. And still is. My furring channel goes from flush against the joists on one side to 4 inches below on the other. The walls are not as bad but I know I will still have to shim them out to get the RC-1 straight.
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post #7 of 16 Old 09-23-2017, 03:59 PM
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I attached a picture showing the two for comparison.
nope
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post #8 of 16 Old 09-23-2017, 04:07 PM - Thread Starter
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Quote:
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Quote:
Originally Posted by downfall21 View Post
I attached a picture showing the two for comparison.
nope
so you think they are different? I personally think the top one is 20 gauge.
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post #9 of 16 Old 09-23-2017, 06:06 PM
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nope meant I couldn't see a picture
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post #10 of 16 Old 09-23-2017, 08:30 PM - Thread Starter
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Apparently I'm not allowed to post images yet. I have been attaching as thumbnail up to this point.
I should be able to attach images on my next post.
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post #11 of 16 Old 09-23-2017, 08:32 PM - Thread Starter
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nope meant I couldn't see a picture
How about now?
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post #12 of 16 Old 09-23-2017, 08:48 PM
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Now I see it and that is puzzling. If you had a micrometer you could measure the thickness of the metal, one certainly looks thicker.

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post #13 of 16 Old 09-24-2017, 01:35 PM
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Above you indicted you purchased 25 Ga, there is a possibility that they did not have enough of that in stock so made up the difference with a thicker version.
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post #14 of 16 Old 09-24-2017, 06:50 PM
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Your "old" stock sure looks like thicker gauge metal. Don't worry about the 25 gauge in terms of the ceiling falling down. Remember that when the face is attached to drywall, the clip also becomes stiffer.

I hear you on the old construction. I'm currently doing a theater in a 100 yr + house, where knob and tube bits are everywhere. Floor joists range from 2" to 2 1/4" in width. Nails I've pulled from floor joists are square....

Rather than doing the resilient across the joists (wildly uneven) I furred them with steel studs to get to level. Presumably the metal studs perform similar to resilient channel, although in my application, who knows.

This is what I'm dealing with...the pic below was taken just after dropping an under slung fir beam, cutting 7" of floor joists away, and installing an engineered flush beam to get back some ceiling height.



Otherwise, I was facing shimming every strap, and dealing with a 1" dip over 10 ft! The steel studs were pretty straightforward once I found the low point using my laser level.

This is not my basement, but describes the method: http://www.aconcordcarpenter.com/how...a-ceiling.html


Last edited by dennwood; 09-24-2017 at 06:56 PM.
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post #15 of 16 Old 09-24-2017, 10:40 PM
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My ceiling was also uneven, we had a 4-5cm height difference.
The installers used threaded 6mm rods cut to length and the rubber portion of the clips is hanging on a 2cm diameter nut which is adjustable up/down.
They managed to get the whole thing level with a red laser. Had to sacrifice 2cm in height but worth it.

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post #16 of 16 Old 09-25-2017, 11:10 AM
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The channel in the "old stock" picture sure does look a lot thicker, but the labels seem to be the same for both. I wonder if it was mis-labeled at the factory.

Another way of dealing with an uneven ceiling is to use "regular" clips and shim on top of them with washers of different thicknesses. You can make your own "washers" out of various thicknesses of plywood with a drill and a hole saw attachment quickly and easily. Or just use 1/8" "luan" type plywood and use multiple layers.



There are plenty of 100+ year old houses across the US, with a higher concentration on the East Coast. They come with plenty of challenges, not only from the different construction techniques from 100 years ago, but also from the countless modifications done by the various owners over all those years. Houses in Europe and other places with a longer history can be many hundreds of years old.
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