Anyone with experience with gluing down Solid Brazilian Cherry on concrete Slab? Ok, recommended, avoid? If Ok, which adhesive is recommended? Maximum moisture content of slab before install, minimum acclimation time of new slab? minimum acclimation time of wood in the house before install?

I'd have to say, I would would walk from that bid.

Your swimming with sharks, and wearing bags of chum, with that one.

120 days minimum.

If it is even close to 3#.per 1000sq.ft. don't do it!

Bostik adhesives has a moisture blocker to use with their adhesive, called VP, but it too has it's limits, and it better not be on the edge of that limit.

The old Firebird used say it was possible with their 1/2" product, but their wood was very straight.
Your job sounds like trouble and nothing else. How will you draw it tight? it is not a recommended procedure in the manual. Only shorts.

Hey Floorguy - I am wondering if you know what Bosticks MVP limit is? (roughly) I have not found anything from them on a suggested number for their limit. Taylor's states up to 12# per 1000 ft2. Thanks

Brazillian Cherry is also an "oily"wood and I wonder how long the adhesive will grab firmly. We did the same ii a small 300 foot area of our showroom about a year ago and the wood moves - we keep using a heavy pull bar every month or so to bring the ends together in certain places.

Not long till we replace it



Art

How thick?

Might make a good subfloor/nailing base!

Art, what are the dimensions of the boards you have down?

Is it an engineered?

Remember, Jatoba/(Hymenaea Courbaril) has a gain of .00300 change coefficent, per 1% gain or loss in MC.

19% more then stable then Red oak.
However, actual installations have shown significant movement in use.
Source: NWFA Technical Manual.

3/4" solid x 3 1/4" it was done as a temparary measure not menat to leave down for 10 years or - more to show the overall look of the wood.

In my belief its' more to do with the adhesive and the "oils" the wood throws off in colder climates

Otherwise we took a lot of care in installing it.

Art

300 sq.ft. is a big area to ask a ¾" to stay put, as a gluedown. a 10 x 10 is asking a lot from the adhesive with a solid ¾"

Now you know why it is not recommended for gluedown installations, only for fasten down!!

Without going into a five page explanation: Don't glue Solids....
Just DON'T.
However, if you lived in Florida, I would not make a comment...
My job is to inspect the floor after it fails.

Ray, your blowing your job security!!!
Mine too!

This section is meant for professionals to exchange ideas etc., mine was with oils that excrete from Brazillian Cherry solid ( in my experience)and some other species particularly in colder Northern climates where the wood reacts differently than in say Texas. Nothing to do with glueing to cement specifically. My 40 years of flooring experience has taught me many things.
Not all experts are correct - me included sometimes! In fact the area was 185 sq. feet not 300 and it can be done in certain circumstances!

Art

I misread 300 Sq.ft. somewhere.

There is a reason the NOFMA, NWFA, MWFA, and many other specifically say not to install ¾" solid to concrete, and it isn't the oil in the wood.
I have installed many 1000's of feet of engineered Brazillian Cherry, before they started the bi-species cores we are starting to see today, and I would have heard of one of those jobs releasing.