Carpet tape does make it possible to install multiple pieces of carpeting side by side and if you follow directions for installing carpet seam tape seams should blend with the rest of the flooring.
Carpet seam tape installation.
If you are replacing a section of already installed carpet just pull it back far enough so that plenty of the undersides are exposed.
Place a carpet seaming iron under the two pieces of carpet against the carpet seam tape and plug in the iron.
Seam peaking occurs when the seam is set and then stretching occurs as the installation process is completed.
Place the carpet pieces to be connected upside down so that the carpet seam tape can be easily placed on the bottom of the carpet.
Follow the tape and iron manufacturer s recommendations for heating times.