A carpet or rug should lay flat all around regardless of whether it sits on tile.
Carpet tile edge curling.
Cupping is similar in that the center part of the tile pulls up the corners.
It is not.
As a result we re seeing claims coming in daily on almost every manufacturer s carpet tile for curling edges.
For every action in this case an uneven stress level in the layers of the tile there is an equal and opposite reaction which is the curling of the tile edges.
If you cut a small square out of the middle of a curling carpet tile and lay it on a perfectly flat surface like a glass top table that small square s edges will also curl.
If you cut a small square out of the middle of a curling carpet tile and lay it on a perfectly flat surface like a glass top table that small square s edges will also curl.
The causes of curling and cupping can range.
The adhesive used on carpet tile is pressure sensitive and is only supposed to stabilize the product on the floor laterally.
How to stop carpets from curling up at corners.
It creates a concave shape that doesn t lie flat or meet up with the surrounding tiles.
One of the responses from manufacturers is that the installers didn t use enough adhesive.