tents are definitely better of two sheets, in which the outer layer is called a flysheet. This tent has a bedroom, or the vestibule and the outer layer (the roof). The roof is designed to protect against rain, snow and wind and the material bedrooms provide water vapor transmission. This brings us to the point.
One person sleeping in a tent is prepared from about 0.5 to 1 liter of water by breath and sweat during the night. Additional sources of moisture are wet and sweaty clothes and shoes, wet ground under the porch, and cooking in a tent or vestibule. In the absence of ventilation, the moisture will be condensed in the form of droplets on the walls of the tent. If you sleep in a tent jednopowłokowym is in the morning, when usually it is coldest, will fall on us or even drops of water frost. Tents two sheets allow you to reduce this adverse phenomenon. The roof is not completely windproof, there are air vents to ensure air flow and transport of water vapor on the outside. This air flow takes place in the space between the roof and the bedroom (the bedroom is part of the material windproof and waterproof poorly) and does not cause too much windchill bedroom. The tents dwupowłokowych condensation effect is minimal, but there are situations where the weather this system fails. If the humidity of the ambient air is greater than inside the tent, for example, during heavy rain, unfortunately the effect of condensation occurs. Similarly, if during a snowstorm zadymki or are forced to close the vents.
For several years there are tents, one coat made of breathable materials Goretex-type and derivatives. The advantage of these tents are waterproof and windproof, lightweight design in conjunction with one coat, fast and easy to shatter. Someone may ask: "What about the breathability, which eliminates the condensation problem?" Unfortunately, does not remove. To substantiate this assertion, I must briefly recall the principle of breathable materials. In order to permeate through the fabric breathable, water vapor, the temperature difference is needed on both sides of the membrane (the difference in vapor pressure). In the case of clothing, sleeping bags and camping made canvases breathable fabric body heat is enough to 'run' of the membrane. In the case of tents, heat source, and indeed weak, as we know sleep in a sleeping bag good heat insulation is separated from the membrane layer of cold air, a little warmer than the surroundings. With a small temperature difference would be breathable fabric sides effect of water vapor transport is minimal and, unfortunately, there is condensation. Qed (Q.E.D.).
disadvantage is Goretex'u tents with their very high price. Personally, I advise against. In conclusion, the double-shell single tent, or the flysheet will be our best choice.
One person sleeping in a tent is prepared from about 0.5 to 1 liter of water by breath and sweat during the night. Additional sources of moisture are wet and sweaty clothes and shoes, wet ground under the porch, and cooking in a tent or vestibule. In the absence of ventilation, the moisture will be condensed in the form of droplets on the walls of the tent. If you sleep in a tent jednopowłokowym is in the morning, when usually it is coldest, will fall on us or even drops of water frost. Tents two sheets allow you to reduce this adverse phenomenon. The roof is not completely windproof, there are air vents to ensure air flow and transport of water vapor on the outside. This air flow takes place in the space between the roof and the bedroom (the bedroom is part of the material windproof and waterproof poorly) and does not cause too much windchill bedroom. The tents dwupowłokowych condensation effect is minimal, but there are situations where the weather this system fails. If the humidity of the ambient air is greater than inside the tent, for example, during heavy rain, unfortunately the effect of condensation occurs. Similarly, if during a snowstorm zadymki or are forced to close the vents.
For several years there are tents, one coat made of breathable materials Goretex-type and derivatives. The advantage of these tents are waterproof and windproof, lightweight design in conjunction with one coat, fast and easy to shatter. Someone may ask: "What about the breathability, which eliminates the condensation problem?" Unfortunately, does not remove. To substantiate this assertion, I must briefly recall the principle of breathable materials. In order to permeate through the fabric breathable, water vapor, the temperature difference is needed on both sides of the membrane (the difference in vapor pressure). In the case of clothing, sleeping bags and camping made canvases breathable fabric body heat is enough to 'run' of the membrane. In the case of tents, heat source, and indeed weak, as we know sleep in a sleeping bag good heat insulation is separated from the membrane layer of cold air, a little warmer than the surroundings. With a small temperature difference would be breathable fabric sides effect of water vapor transport is minimal and, unfortunately, there is condensation. Qed (Q.E.D.).
disadvantage is Goretex'u tents with their very high price. Personally, I advise against. In conclusion, the double-shell single tent, or the flysheet will be our best choice.
source: http://www.faq.e-gory.pl/namioty.html
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