Thanks you in advance for reading about my issue. Any advice is greatly appreciated. I am looking for steps I should take to investigate my problem and pinpoint the source of my problem so when I repair, it doesn't happen again. I by know means am trying to shovel blame elsewhere, but if its found to be a manufacturing defect, how to proceed so my company does not front the repair bill.
I am a project manager with a remodeling company. We recently(3 months ago) installed a hickory engineered 3 1/4" plank floor(5/8" thikcness) supplied by mountain lumber company over a Uponor radiant heat system. The floor was acclimated in the conditioned house for more than a week(maybe ten days) and i think I remember taking the rh of the wood before install at around 6 or 7%. The floor heat was not turned on at the point of install. Mountain lumber company has given me literature guaranteeing there product over radiant flooring.
My problem is now cupping and delamination over the entire floor I installed. We glued using bona floor glue where possible, care taken to not contact glue to the pipes. And normal 1 1/2" floor nails. I installed the entire first floor of the house with the wood over the radiant, and every room has anywhere from 5 to 20 cupping or delaminating boards. And the problems continue to get worse. If I sit in the quiet house, I can hear pops and crackles every once in a while as the floor moves.
To my dismay, my plumber is an idiot and didn't balance the radiant right, so I looked at the temperatures of the water running through the pipes, and they vary from 80 degrees up to 110 degrees. The thermostat has never been set higher than 75 degrees for the house. And the temperature of the flooring itself never reaches more than the temperature of the room. One or two of the rooms are a couple degrees lower than the rest of the 1st story due to improper balancing, and yet the floor is still delaminating like the rest. I can't imagine the problems with the wood is due to the heat being unbalanced, but I would be happy to be proved wrong. Will engineered flooring delaminate in temperatures within these ranges?
I have not taken the rh in the house, but both the homeowners and I have not noticed extremely dry or extremely humid conditions at any point. I plan on doing that.
Please let me know what direction I should head to investigate this problem, I am only interested in a resolution, whether its at the cost of the lumber company or my own. Thank you again for your time.