Laminate floor t-molding should only be installed where upon two sections of flooring meet that need to be seperate, ie carpet to laminate floor. Placing firmly over the speration, the t-molding must cover both seperate sections, using the appropriate nail for the job, nail down firmly making sure unmoveable.
T-molding is used to transition from one type of flooring to another. It is placed between the 2 floors. Both floors must be of equal height for the molding to sit correctly. It is attached to the subflooring not the actual floor.
First of all,if it's a large surface you will need some help. The,there's a material that you need to apply on the floor,and then put the laminate floor,over that material,fix it at the corners with screws and that's all