| A GLOSSARY OF TECHNICAL TENT TERMS |
| Bamboozled by ‘tub floor’, ‘integral pitch’ and ‘geodesic dome’? Below is a glossary of tent terms… |
| Dome Design |
A type of structure that has two poles that cross at least once. Typically dome tents have two poles that run diagonally across the tent with another pole(s) to help create vestibule space. |
| Footprint |
For tents with lightweight floors, footprints are ground sheets whose shape is designed to correspond to a specific tent. A perfect fit means perfect protection of the tent floor without excess weight from a ground sheet that is too big. |
| Geodesic Dome |
A type of structure shaped like a piece of a sphere or a ball. This structure is comprised of a complex network of triangles that form a roughly spherical surface. The more complex the network of triangles, the more closely the dome approximates the shape of a true sphere. When tents evolved from the old ‘A-frame’ shape to modern designs they were frequently made in a dome shape and referred to as geodesic domes. |
| Geodesic Tunnel |
A geodesic tunnel is essentially a dome that has been elongated into a tunnel but still uses the multiple cross over points, as in a geodesic dome. |
| Integral Pitch |
Is the ability to pitch both the inner tent and flysheet at the same time. They are usually attached to each other with Velcro and the tent poles slide into sleeves on the flysheet. This also allows for the fly sheet to be pitched without the inner, for super lightweight trips. |
| Osmosis |
Is the process by which water can be transported through a semi-permeable membrane (like polyurethane coatings on a nylon fabric). It can be a problem if a tent floor is in contact with saturated ground, especially if the floor exterior is dirty as this will increase the rate of osmosis. |
| Panel Size |
Is the area of material on a flysheet between tent poles. The smaller the size, the stronger the tent. |
| Ridge Pole |
A third pole that runs over the roof of some tents but doesn’t extend to the ground. It affords greater rigidity and snow shedding abilities but without the added weight of a full length pole. |
| Seam Sealing |
This process seals the internal stitching holes created along panel seams which can leak in wet weather. Can be achieved with a sticky waterproof tape or silicon gel. |
| Self-Standing |
A tent that does not require pegs to stand. Pegs maybe required to create vestibule areas, or for added strength in wind. Dome, geodesic dome and geodesic tunnel designs are all self-standing tents. |
| Siliconised |
Is a relatively new fabric to the tent market. Weighing about 40% of an equivalent |
| or Sil-Nylon / Polyester Fabric |
Has become popular for two reasons; firstly, the exterior silicon treatment leaves a waxy-like surface which sheds water and therefore the fly never ‘wets out’. This means you can virtually shake your tent dry. Secondly, this treatment dramatically reduces the UV degradation of nylon (which is why polyester became popular in the first place), so manufacturers have shaved weight from tent flies as they can now use much lighter nylons instead of heavier polyesters and still make a long lasting fly. |
| Single Skin |
A tent which has no fly, as opposed to a double skin tent which has an inner tent and a flysheet over the outside of the inner. |
| Tub Floor |
The floor of the inner tent has sides which rise up on each side like a bath tub. This provides a more waterproof design than having walls that join the floor at ground level. |
| Tunnel Design |
A tent whose shape is basically a tunnel as opposed to a dome. |
| Vestibule |
The space under the flysheet between the inner tent and fly. It can be used for gear storage and cooking. |
| Wedge Design |
A type of tent design where the foot area is considerably lower than the main entrance of the tent. |
| Weights |
Packed vs Carry - most manufacturers (in an effort to sound more competitive) only quote weights that include the tent, poles and fly – this is not the actual carry weight which must also include pegs, guys, repair kit and optional footprint. |