My architect has recommended these ceiling tiles. https://www.armstrongceilings.com/r...stems/smooth-look-ceiling-tiles/item/972.html They weigh about 2.7 lbs each. She advises the low weight tile for easy removal for cleaning. My builder recommends vinyl covered gypsum. He says that a heavier tile is desired, because commercial kitchen cleaners want to clean in place and they need the weight to keep the tile in place while they are cleaned from below. What are your recommendations?