Most tents are helped by seam sealing. This is my Bibler (Black Diamond) bombshelter tent, which benefits from sealing the seams on the outside. It already has seam tape on the inside. Note that if you are sealing a silnylon tent then you must use a silicone based based sealer such as silnet. If your tent is a PU backed nylon, polyester or todd tex fabric then use seam grip.
