Being able to keep warm, dry and safe in a tent is what we all want when hiking the wood or mountains. You as a backpacker should not be worried if the tent can withstand the rain that hails against the canvas during the night.. Our outer fabric of Ripstop nylon 30D, which is silicone coated on both sides, is of course completely waterproof . It can withstand a water pressure of 3000 mm .This is the same as if you shape the flysheet as a pool, you can fill this pool with water where the pool can be as much as 3 meters deep. Try to imagine the flysheet at the bottom of this pool where there is a fairly high water pressure pushing against the flysheet. But still. The cloth stays waterproof.. So far, everything is good.. But this tight cloth gives us a challenge. And it is condensation. There is a lot of moisture from the people who live in the tent, and from the ground. When this humid air hits the colder canvas, the air is not able to carry the moisture, and the moisture is then left as liquid water on the inside of the flysheet. This is condensation. Same principle as when you get into the car on a rainy day. Then there will be condensation on the inside of the windshield . On particularly rainy days, condensation is a major challenge because then the air contains specially a lot of moisture. In addition, if it blows, the flysheet flap in the wind as if it almost feels like “raining” a bit inside the tent. In these cases, many hikers think that the tent is “leaking” since there is an experience that the rain apparently comes through the outer canvas. The flysheet on quality tents is of course waterproof.
However, condensation and moisture inside the tent can be solved in 3 ways:
- Heating the tent. Hot air can “carry” much more humid air than the cold air can. In the same way as when blowing hot air on the windshield of the car to get rid of the condensation on the windshield. Our NorTent Tipi 6 is prepared for the use of an oven. And when using the oven, the air is heated to prevent moisture inside the tent, as well as having a very warm and dry indoor climate in the middle of winter.
- When not using an oven, An inner tent is a great way to avoid moisture on the tent wall because the humid air passes through the walls of the inner tent, where the moisture is then kept out of the inner tent you are living in. The inside of the flysheet, however, becomes again wet as a result of condensation.
- Ventilation is perhaps the best way to avoid condensation inside the tent. Where the humid air is replaced and transported out of the tent before the air loses its water on the tent walls.
As mentioned above, you do not really prevent condensation inside the tent with an inner tent. You just keep it outside the living area. The inside of the outer tent walls may be quite wet. This is noticeable if the inner tent comes in contact with the flysheet on a perhaps rainy day If you do not have an oven, it’s not as easy to heat up the tent. Therefore, good ventilation is perhaps the best way to avoid condensation and moisture inside the tent. If you have good ventilation, the air is constantly replaced inside the tent with new and fresh air, where the humid air is transported out of the tent before it leaves the water on the tent walls. Our tents all have solutions where you have the opportunity to get fresh air into the tent down at the edge of the tent. The air coming in will be somewhat warmer as a result of, for example, the persons staying in the tent. The hot air then rises up and out through air vents at the ceiling of our tent. If your are aware of the ventilation, you can have a very warm and dry indoor climate. But as mentioned. Air MUST come in and air MUST exit the tent. On especially very humid evenings, it is not always enough to only use the air vents. In addition, it may be smart to use the entrances to get enough air flow through the tent. Both Nortent Lavvo 6, Nortent Hedda Extreme 4 and NorTent Helena Extreme 2 have entrances at both ends of the tent, to effectively control the indoor climate in addition to the air vents.
Ventilation is also important on hot days. It can be directly dangerous to stay in the tent on a hot summer day where the dense outer fabric makes the tent close to a baking oven. With the big living space and the air ventilation in our tipi, however, you can stay in the tent on very hot days since the ventilation here will be optimal. On these days you may experience a comfortable breeze inside the tent where air entering is quickly heated, rising and disappearing from the tent through both air vents and entrances while staying inside the inner tent shielded from for example Mosquito and bugs.