Gluing Wood Flooring to Concrete
From contributor G:
How authentic do you want to be? Twenty or more years ago when the BC rail cars changed over to nailable metal floors and discarded the old flooring in our local dump, I brought lots of them home for garden boxes. They were maple, if I recall correctly, and made of strips bolted through and through with huge bolts. No glue involved.
From contributor D:
Wood flooring can be full trowel glued with products made specifically for that purpose. For commercial use I recommend SLC 3000 by Rinaldi, Italian glue that is elastomeric so wood can expand and contract seasonally without delamination. 3M Tartan brand strap tape can be used to hold planks together while glue cures. The green tack of the SLC adhesive is strong enough that no weighting or down pressure is required.
From the original questioner:
Thanks for all the advice. I am now going to go the solid white oak route instead of engineered hardwood. More authentic and a much better look. It was my first thought, but I just didn't think it would work. Since the slab is totally dry with no chance of moisture, I plan to glue straight to the surface after priming. SLC Silovil L38 looks perfect. A comparable adhesive I found was SikaBond T55. It is recommended to use in conjunction with Sika Primer. They also have an interesting Sika AcouBond-System that uses a slotted foam mat as acoustical dampening. The slots get filled with glue so the wood floor is directly glued to the slab. Looks too good to be true. Has anyone used this product?
From contributor D:
Sika makes a good product and they have been around for a while. The cleanup is much more difficult than SLC and the Sika also has a strong solvent smell, unlike SLC, which has a mild urea odor. Sika is single component and has a wide range of cure time r/t environmental conditions. SLC is a 2 component and cures much more reliably. Both are excellent products.
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