Can a big surface be installed without any intermediate expansion joints?
If the laminate flooring is installed on a surface exceeding 5 or 8 mm. depending on the orientation of the installation and if no expansion joint is placed, one of the basic regulations in the instructions of the laying of the product will be not fulfilled and that will invalidate the warranty. The 10-mm expansion joint must be left all along the perimeter of the installation (and around any obstacle as columns, heating pipes, etc.). It is enough for a place not bigger than 8 m (installation direction in the long side of the piece) x 5 (installation direction in the short side of the piece). If the surface to lay is bigger, the peripheral 10-mm expansion joint is not enought and an intermediate one must be added. To substitute the intermediate expansion joint in the perimeter (plus 10mm) is not recommenede and may not fulfill the desired function.
