We have bought James Hardie HardieGlaze 2400 x 1200 x 6mm Tile Lining (white) to go on the lower portion of our toilet room (as in mock picture). We dont want to use unsightly joiners between the panels as it would spoil the tile look. Suggestions please for how to join the panels neatly and which glue to use to adhere the panels to the gib.