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| | | Author | Message | Ray Darrah 
Posts: 1411 Since: 2/18/2008
|  7/2/2008 11:19:47 PM 
I believe NOFMA states "Moisture Barrier"? with solids? I know of no manufacturer who states "glue 3/4" solid to concrete".
NOFMA States: Historically, NOFMA has not recommended glue-down application of wood fl ooring to a concrete slab. The basis for this position has been that NOFMA standards for wood fl ooring manufacture assume the fl ooring will be installed on wood based subfl ooring systems with mechanical wood fasteners, nails, cleats, staples, etc. Today, building homes on concrete slabs is the normal construction technique in many areas of the country. In recent years, advancements in adhesive technology and moisture retarders have made it possible to successfully glue solid wood fl ooring to concrete slabs in situations other than parquet applications. A concrete slab does not behave the same way as a traditional wood system, particularly with respect to nailing. In addition, a slab can be a potential moisture source and adversely affect the performance of the fl ooring in dramatic fashion. As such, glue-down pplications require the installer to take additional steps to ensure success. Still, some wood flooring manufacturers may not approve of direct glue down application of their solid wood products. As such you should always follow the instructions and limitations published by the manufacturer. When in doubt, NOFMA recommends checking with the manufacturer prior to Installation.
These installation recommendations address solid strip and plank fl ooring up to fi ve inches in width. NOFMA does not recommend gluing down solid wood fl ooring that is wider than five inches.
Do not begin installation until proper conditions have been met and all inadequacies have been remediated. Where the potential for high moisture conditions exists, use a vapor retarder compatible with the adhesive system. Even in optimum conditions with the unexpected occurrence of temporary high moisture or unusual environmental conditions this type of retarder should be considered as a safeguard to ensure good performance of the wood flooring.
KEYWORDS STATEMENT:
Directions For Installation: Always read and follow the instructions provided by both the fl ooring manufacturer and the adhesive manufacturer. Because the solid wood flooring will be in contact with the concrete slab, a potential moisture source, attentionto detail cannot be emphasized enough. Proper handling and storage, jobsite conditions, and installation technique are all critical to providing a properly performing fl oor. Follow the manufacturers' directions precisely. TAKE NO SHORTCUTS.
In short: this is not a NOFMA installation, it is NOFMA saying "Go ahead and do it, but follow manufacturer directions".
x
Last Edited 7/2/2008 11:28:18 PM
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| Stephen Perrera 
Posts: 823 Since: 5/27/2008

|  7/2/2008 11:44:22 PM 
Gee, you found it finally. A little research goes a long way.
Say, did ya ever find that certificate for the NOFMA?NWFA Installastion Class yet? No...I thought so.
What does NOFMA say about retarders under the slab? I think you missed it.
Last Edited 7/2/2008 11:44:49 PM
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| Roger Gerber 
Posts: 327 Since: 3/17/2008
|  7/3/2008 6:56:23 AM 
So in short this is a NOFMA endorsement of gluing solids up to 5 inches in width.
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| Selva Lee Tucker 
Posts: 634 Since: 5/25/2008
|  7/3/2008 9:17:06 AM 
So, Roger, says it is possible if the manufacturer of the wood says ok,,,,and the right adhesive used, and the right conditions met, and you use the correct sizes, and you will have a much higher cull rate on long boards/planks, the ones you can "pull together" with the nailer but that will not be possible with glue down,,,,so, the cull rate will be much higher that 5%...in addition, since long boards do have this potential, shorts boards or shorts are better suited for glue down applications.
I once said I never thought I would see approval but I was wrong.
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| Ray Darrah 
Posts: 1411 Since: 2/18/2008
|  7/3/2008 12:05:49 PM 
stephen, the credentials are listed on my site.
www.FlooringExpert.com or www.RayDarrah.com
and they are scanned and uploaded, which reminds me;;; I must take the time to update all my personal web pages... thank you for reminding me.
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| Ray Darrah 
Posts: 1411 Since: 2/18/2008
|  7/3/2008 12:08:31 PM 
let me help you a bit more Stephen.
http://www.flooringexpert.com/doc_pages/doc_nwfa_nofma.htm
I don't know why this is so important to you.
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| Stephen Perrera 
Posts: 823 Since: 5/27/2008

|  7/3/2008 4:33:19 PM 
Because Ray as we have seen lately many people can and do (like the ones on sites like yours claiming to be NWFA certified that were not) put up misleading...or they do not intentionally do it, but rather they do not check the credentials listed on websites. Meaning...unless you can show the certificate of completion or certification then it don't count.
Simple as that. I know you own a camera. So you say you attended the NOFMA/NWFA school 12 years ago but cannot produce any evidence of it. How about all those others credentials? Got any of those?
Last Edited 7/3/2008 4:34:50 PM
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| Selva Lee Tucker 
Posts: 634 Since: 5/25/2008
|  7/3/2008 6:18:24 PM 
Man, I sure don't want Stephen on my back,,,,he reminds me of that guy who use to hang arounds Freds, what did he call himself? oh yea, the Obbessessesssed Installer,,,man, was he mean to those carpet cleaning inspectors,,,,,
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| Ray Darrah 
Posts: 1411 Since: 2/18/2008
|  7/3/2008 7:45:37 PM 
Stephen is a funny man. Almost all the credentials on at the site www.FlooringExpert.com. Now to update it, as there are more to put up there.
Also, I'm in the NOFMA program for Inspection Certification and you MUST attend the NOFMA/NWFA installation course before being in the Inspection program.
But, I have nothing Stephen. You are right.

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| Stephen Perrera 
Posts: 823 Since: 5/27/2008

|  7/3/2008 8:11:40 PM 
"Stephen is a funny man. Almost all the credentials on at the site www.FlooringExpert.com. Now to update it, as there are more to put up there.
Also, I'm in the NOFMA program for Inspection Certification and you MUST attend the NOFMA/NWFA installation course before being in the Inspection program."
So your a nofma certified inspector you say?
"Almost all the credentials on at the site www.FlooringExpert.com.
All the credentials are what, verified by you? Do you double check them now? You might want to put a disclaimer on there.
Last Edited 7/3/2008 8:13:35 PM
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| Selva Lee Tucker 
Posts: 634 Since: 5/25/2008
|  7/3/2008 8:14:35 PM 
oh Ray, this is so sad, after all these years, you find you have nothing? listen, post an address, I will send five bucks,,,, :(

 just teasing,,,just drank my, carrot, kale, beet, wheatgrass, celery, mixed greens juice,,,,I'm good for another 24 hours...
by the way, did you guys, esp.'ly us old guys! read that watermelon rhine is just like those sex pills for men,,,,and good for the heart as the same time,,,only problem, I think you might have to eat a whole watermelon rhine, ummmm,,,,,well, well, no thanks, I think if a man ate the whole thing, it would be him not in the mood for a change! 
Ray, relax, it is called trying to lighten up the mood, not a perversion.
Last Edited 7/3/2008 8:15:37 PM
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| Ray Darrah 
Posts: 1411 Since: 2/18/2008
|  7/3/2008 8:38:36 PM 
$5.00?
Send to : 1149 N. 42nd Ave. Tampa, Florida 34604
Thank you, it all adds up !!

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| Selva Lee Tucker 
Posts: 634 Since: 5/25/2008
|  7/4/2008 1:20:00 AM 
ummm, well, with more and more on grade constructions,,,,it will be happening more and more,,,,
now, question, for wide planks, how long has the NWFA had the recommendations that they be nailed and glued?
what is the main reason for not gluing down solids to some types of subflooring panels?
ain't life fun!
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| Ray Darrah 
Posts: 1411 Since: 2/18/2008
|  7/4/2008 8:01:37 PM 
NOFMA made that statement?
I don't have that statement in any of my library. Please scan and upload the statement regarding nail/glue.
Thank you for the help Selva.
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| Roger Gerber 
Posts: 327 Since: 3/17/2008
|  7/4/2008 8:54:32 PM 
I have not seen that in print from NOFMA, however I did an inspection for Somerset and they recommend gluing and nailing on anything over 4 inch width.
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| Ray Darrah 
Posts: 1411 Since: 2/18/2008
|  7/6/2008 12:18:59 PM 
Roger..
Glue and Nail... this is what has me baffled...
The glue has thickness and is soft/wet, during installation. When nailing, won't the nail punch through? Won't the side that is nailed be pulled downward toward the sub-floor leaving the boards with a "tented" appearance?
In FLorida, we don't see much nail down. Concrete sub-floors due to termites and such...
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| Roger Gerber 
Posts: 327 Since: 3/17/2008
|  7/6/2008 3:50:28 PM 
They recommend a bead of "quality urethane" adhesive down the length of the board, then nail it. I'll see if I can find the link. You can't trowel it on because you would get glue on the foot of the gun.
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| Selva Lee Tucker 
Posts: 634 Since: 5/25/2008
|  7/6/2008 5:00:20 PM 
have to hunt for the statements about gluing and nailing , doing both, in NWFA lit for wide plank
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| Ray Darrah 
Posts: 1411 Since: 2/18/2008
|  7/6/2008 7:22:22 PM 
I cannot find a statement on this issue and have not seen an installation of this to the best of my knowledge. I still think the glue, whether it be a bead or not, would leave a thickness at the edge and hollow in the middle?
I don't know what it is, but something does not sound right about this procedure to me.
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| Roger Gerber 
Posts: 327 Since: 3/17/2008
|  7/6/2008 8:08:31 PM 
Scroll down to installation, then on to Adhesive/fastener heading.
http://www.somersetfloors.com/solid-install.asp
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