Hi all, I am currently doing an extension around the kitchen area and have hit a hurdle in terms of flooring options. The extension floor is yellow tongue board on piers and joists. This floor is joined to existing floor area, also on piers and joists. My builder said we can't put tiles over new/old floor joint due to floor movements. Or we must have a silicon sealant between the tiles around the area of the joint. I haven't seen this done before but I can imagine it would look pretty ugly. Laminated floorboard/hard wood floor was suggested but it's not ideal for kitchen area. Vinyl was also considered but it does nothing to the property value and plus it looks very 1970s. So I thought I'd throw it out there and see if anyone have had this issue before and what did you do to solve this issue? Thank you.