Comparison Black Diamond Bombshelter vs Terra Incognita TopRock 4

Seasons in which the use of a tent is allowed.

There are three main seasonality options: winter, spring / autumn and summer. At the same time, the design features necessary for comfortable use of the tent in different seasons are as follows:

— In winter, the tent should effectively protect against snow and wind, and its materials and fittings should normally endure a long stay in the cold. Thermal insulation is also desirable, but in general this is a secondary factor — the main insulation is provided primarily by clothing, a sleeping bag and a bed.
— In the off-season — in spring and autumn — protection from rain, which can be accompanied by strong winds, is of particular importance.
— For comfortable use in the summer heat, good ventilation is required, ideally with insect protection, such as mosquito nets.

As you can see, these requirements generally do not contradict each other and may well be combined in one product. Thus, there are very few tents on the market designed strictly for one season — two- or even all-season options are much more common. For example, even among beach tents (see "Purpose") there are models for which the possibility of using in the off-season is claimed — for this, the design provides for a dense awning, or even the ability to completely close the tent. Almost any model from the "spring-autum...n" series additionally has a summer specialization; and most models suitable for winter actually allow year-round use.

In conclusion, we recall that tents with the same seasonality and purpose can at the same time differ significantly in characteristics and design features.

The total weight of the tent is including the frame and other accessories.

This parameter depends primarily on the purpose (see above), and after that — on seasonality, capacity, and additional functions. For example, in trekking and expedition models, the weight usually does not exceed 5 – 7.5 kg, and the lightest of these products can weigh 2 – 3 kg or even less, while being full-fledged tents for 2 people or even more. However, for a trekking tent, such a small weight with a capacity of more than 2 people usually means that this model is designed exclusively for the summer. For most camping tents, the weight starts at 6 kg, although among them there are also quite light products — by 4 – 5 kg, 3 – 4 kg, or even less (in such cases, light weight can also mean a purely summer specialization). And the most capacious and/or multifunctional models can have a weight of 10 – 15 kg, 15 – 20 kg and even more; in this weight category, you can mainly find tents, camping tents for many people and fishing tents for carp fishing (see "Destination").

When choosing a tent according to this indicator, it is worth considering that it does not always make sense to chase the maximum we...ight reduction. Yes, the light tent is the most convenient to carry; on the other hand, weight reduction inevitably affects one or several other characteristics at once. So, most often, lighter models are either more expensive or smaller in size and less roomy and functional than their heavier counterparts. And sometimes weight reduction also negatively affects the security (including moisture resistance) and the overall reliability of the product. Therefore, it makes sense to specifically look for the lightest tent possible in cases where weight reduction is of key importance; a typical example is long trips, in which all the equipment has to be carried “on oneself” for a long time. And even in such cases, it is worth remembering other important characteristics. For example, for use in late autumn, when frosts are likely, it is better to choose a heavier tent with winter seasonality than a light model that is not designed for winter conditions.

The vestibule is a kind of "entrance hall" in front of the entrance to the main compartment (s) of the tent.

The specific design and purpose of such a "hallway" may be different. So, in small two-layer tents, the space between the inner and outer layers in front of the entrance plays the role of a vestibule (for this, the outer canopy is stretched at a greater angle relative to the vertical than the inner one). The dimensions of such a compartment are small, it is designed mainly for storing individual items, such as shoes. In larger models, the vestibule is made in the form of a full-fledged compartment, which differs from the main compartment only in the absence of a bottom (although there are exceptions). Such a compartment can be located between two sleeping compartments; and in some tents two vestibules are provided at once.

Anyway, such equipment increases the useful area of \u200b\u200bthe tent and provides additional comfort when using it. Tambour can be used to store equipment, often quite bulky; with an open entrance, it provides additional protection for the main volume of the tent from rain, sun and wind; and in a large vestibule(150 cm long or more), you can even organize additional sleeping places (if the weather permits) or even an auxiliary room such as a kitchen, dining room, administrative area, etc. " below.

The length of the vestibule provided in the tent.

See above for more details on the vestibule. As for its dimensions, the length of the vestibule is measured along the same side along which the length of the entire tent is measured; and the width of this compartment usually corresponds to the overall width of the tent, and it does not need to be specified separately in the specifications. At the same time, we note that due to such measurement rules, the length of the vestibule is often less than its width; this is quite normal in this case.

The specific ratio between the dimensions of this compartment in different tents may be different. However, in general, a longer vestibule is usually larger and more capacious than a shorter one. When choosing, it should be taken into account that a large and spacious additional compartment increases overall comfort, but it significantly affects the price and weight of the tent (not to mention its overall dimensions). So when choosing for this parameter, it is worth considering the real conditions and features of the operation of the tent. We only note that in order to organize additional beds, it is worth paying attention to vestibules with a length of at least 150 cm — usually, they can accommodate additional places at least across, and often along the tent.

— External. The external frame is considered more convenient to set up, especially in the case of double-layer tents (see "Inner tent"), since both the inner tent and the outer awning are put on the frame at once. On the other hand, such a frame is more susceptible to the negative influence of natural conditions and does not allow the inner tent to be set up separately.

— Internal. The internal frame is somewhat more difficult to install than the external one; at the same time, it is less susceptible to the influence of unfavorable external conditions, and in double-layer tents (see "Inner tent") with an internal frame, it is usually possible to install only the inner tent, without an awning.

It should be noted that only tents in the shape of a hemisphere or half-barrel have a classic frame (see "Body shape"); in the case of gable tents, the characteristic "external/internal" refers primarily to the location of the supports, and the term "frame" is not applied at all to tent models.

— Inflatable. In such tents, the role of the frame is played by sealed hollow tubes made of flexible material (rubber or polymers), usually arched. When folded, they can be rolled up quite compactly, and when the tent is set up, they are inflated (usually with a special pump), acquiring the desired shape and sufficient rigidity to support the awning. The advantages of inflatable frames are...their light weight and ease of installation; they usually belong to quick-setup systems (see above for the latter). On the other hand, inflatable elements are very sensitive to damage: a small crack or hole, not critical for an element of a regular frame, disrupts the seal and makes the tent unusable.

— Pop-up. An automatic type of arc frame — it unfolds automatically when the tent is removed from the cover. This type of frame is often used in small budget tents, intended for those who prefer camping, nature trips and music festivals. Such tents are packed in a small round bag, which takes up a minimum of space in a car trunk or among the hand luggage of vacationers.

Both the rigidity of the frame and the reliability and durability of the tent itself depend on the thickness of the arcs. Usually, the larger and more capacious the tent, the thicker the arches are needed for the frame. Arcs made of plastic and fibreglass most often have a thickness of 7 to 13 mm, while steel and aluminium — from 5 to 16 mm. With an increase in the section of the arcs, the weight of the tent in the folded state also increases.

The material from which the frame of the tent (arc) is made. The main requirements for arcs are strength, resistance to deformation (elasticity) and low weight. Modern tents use several materials with different ratios of these parameters.

— Aluminium. A fairly common material: it has good strength characteristics and low weight, but it is relatively inexpensive. At the same time, aluminium is prone to deformation under long-term stress (although this is usually not critical even when parking for several days).

— Fibreglass. Composite material based on a combination of fibreglass and plastic. The main advantage of fibreglass is resistance to deformation: even under prolonged loads, the arcs do not lose their shape. In addition, this material is cheap and light in weight (although somewhat heavier than aluminium). The disadvantage of fibreglass is its sensitivity to low temperatures, which limits its use in winter conditions and at high mountains. However, most people use tents in the warm season, and therefore fibreglass has recently gained considerable popularity.

— Steel. Steel is the most durable of the described materials, in addition, it holds loads well, almost without deforming. At the same time, steel arcs have a significant weight, and therefore they are rarely used in tents.

— Durapol. A composite material that...has appeared relatively recently and is positioned as a more advanced alternative to fibreglass. Durapol has a "puff" design: the outer layer is made of special polymer resins, metal foil is located under it, a synthetic mesh is located under it, and, finally, a layer of fibreglass. According to the creators, arcs made of this material are more durable and resistant to fracture than fibreglass, better tolerate low and high temperatures, as well as ultraviolet radiation, are less susceptible to residual deformations and have less weight.

An indicator that reflects the ability of the tent awning to withstand moisture without getting wet. It is expressed in millimetres of water column — the height of the water column that the awning can withstand (the area of impact is out of the question, because the load per unit area under water depends only on the height of the water column and is not related to the area of \u200b\u200bits base). The significant figures indicated in the characteristics (for example, 4000 mm of water column, i.e. 4 metres) are due to the fact that raindrops can have a significant speed and, when they hit the tent, create a load at the point of impact comparable to the pressure on depth of several metres.

In general, the higher the waterproof rating, the better the awning will cope with the effects of rain and snow. Indicators up to 3000 mm w.c. Art. are considered sufficient for places where it rains rarely, awnings for 3000 – 7000 mm of water. Art. allow you not to be afraid of intense downpours, and in expeditionary (see "Destination") tents designed for extreme conditions, this figure can reach 10,000 mm of water. Art. and even more. However, more water-resistant fabrics, usually, have a significant weight, so in each individual case it makes sense to choose the option that is optimal in terms of durability and weight.

Special impregnation of the tent fabric, which reduces the speed of flame propagation. In the event of a fire, this will give you extra time to get out of the tent, carry out things or take measures to extinguish the fire. In addition, such impregnation generally reduces the likelihood of accidental ignition (for example, from a fire spark or an unsuccessfully thrown cigarette butt). Almost all modern tents are treated with refractory composition.