The term ‘No adhesive required’ applies when G-Floor is used as a Parking Pad. Simply roll it out and park your car / boat / golf cart / motorcycle / etc. on the mat. If you’re leaving heavy objects on the mat for an extended period (such as a boat over the winter) you may experience buckling due to expansion and contraction in extreme weather changes. When using G-Floor other than as a Parking Pad, adhesive may be recommended. Choose an appropriate adhesive for the surface involved. When G-Floor is used as a full floor installation, also known as wall-to-wall installation, we would recommend adhesive be used.