1. The whole installation area is too big. And the floor planks don’t have enough space to expand. When the installation area exceeds 8m*10m, T-moulding or other accessories must be used to gap the installation area.
2. The subfloor pushes up. Some end users put laminate on carpet, bamboo floor or hardwood flooring. When these floor materials push up, laminate plump accordingly.
3. There is not enough expansion space between wall and laminate. The expansion space must be at least 8mm wide. Laminate flooring is a “floating” type. It expand when it becomes hot.
4. Some floor area is immersed in the water. For example, heavy rain falls on the floor from open window. And the rain hasn’t been get ride of quickly. The floor planks will expand to its maximum in this case. And the wholes planks will push up.
