1/2 inch ply .screwed well down. larson fast set adhesive and i also mixed some liquid to give it flexability . dont know the name of it : but it was like watered wood glue.
Usually the minimum recommended ply thickness is 12mm.
You also need a proper powdered flexible adhesive, many on this forum recomend Bal. I have used this and never had a problem, with movement or cracking.
It sounds to me like the adhesive you used is the culprit.
I would bite the bullet, lift them and lay them again.
Usually the minimum recommended ply thickness is 12mm.
You also need a proper powdered flexible adhesive, many on this forum recomend Bal. I have used this and never had a problem, with movement or cracking.
It sounds to me like the adhesive you used is the culprit.
I would bite the bullet, lift them and lay them again.
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