In the wilderness, a tent that blocks the wind provides a warm sleeping environment. When choosing a campsite, don’t choose the valley floor, where cold air swarms, and also just avoid ridges or hollows that suffer from strong winds. A good moisture-proof pad can be useful to disconnect the sleeping bag from the cold and wet ground, inflatable better, in the snow need to use two common moisture-proof pad.
Moisture pad has two main effects: make you sleep more quietly, especially on the harder, less spreading ground; it is a layer of insulation between your body and the ground, blocking the heat transfer between the body and the ground.
Foam plastic damp-proof mat is the most common variety, the admission of high-pressure polyethylene material, through the foam molding, and then cut into pieces of a certain thickness according to the different specifications. Due to the lower durability, in foreign countries is usually a one-time use. China is a low-consumption country, the human consumption habits hope to be used many times to cut input.
XPE moisture-proof mat in strength, toughness and tensile strength are much better than the closed-cell foam material, but the water resistance is not as good as the closed-cell material, because today’s manufacturers make this moisture-proof mat, in the process through high-temperature stiffening do crust disposal to enhance water resistance.
Damp-proof mat due to the differences in the selection of materials, divided into high, medium and low differences in the remaining grades. Low-grade as usual, the choice of PVC coated polyester silk, so the quality will reach more than 1 kg. Medium and high often choose PU coated polyester silk, the core with high quality sponge, so the sense of compression and toughness are very good.
How to use the damp-proof mat?
Even on a hot day, the temperature outside the earth is still lower than the temperature of the air, when we touch the outside of the earth, conduction will bring the heat of our skin to the ground, resulting in the loss of energy and cold skin, so we need a damp-proof pad to help us do a good job of blocking things, not due to the loss of energy and loss of temperature.
Tide pad blocking principle and we use the same sleeping bag and warm clothes, are exercised a layer of nearly non-flowing air to make a barrier layer, cover the external low temperature. The effect of the barrier according to the use of materials can exercise a number of air layer and air layer of mobility and there are differences. Between your body and the ground to block out a layer of non-circulating “dead air”, and the exercise of your body heat gradually increase the temperature of this layer of “dead air”, so that it becomes a barrier between your body and the ground heat exchange, thus exerting the effect of temperature and moisture. And the damp-proof mat’s efficiency and otherwise sprinkled in her ability to retain a number of “dead air” and stop air convection.
Some people only seek to sleep with a mat on the line, do not care too much about the damp-proof pad quiet degree, the natural choice of cheap, light damp-proof pad; If you require a damp-proof pad has a considerable degree of quiet, naturally, you have to spend more budget to purchase a control of the expensive damp-proof pad.
In the use of experience, because the moisture pad is almost always hanging on the backpack, pay attention to the external straps do not close too tight, otherwise it will gradually reduce the elastic recovery of the sponge foam. Also pay attention to the outer layer of the moisture-proof pad to tighten the rope belt, set tightly back to the outer layer, do not just stay outside, otherwise it is easy to hang on the tree branches in the moment of crossing the forest.
