Frame Tents
A groundsheet is familiar with to provide a waterproof barrier between the ground and a sleeping bag. With double skin tents, the inner tents normally have a sewn-in groundsheet, but a discrete even groundsheet may be provided for any living area. With peerless skin tents, the groundsheet may be sewn in or separate. Normal fashion with sewn-in groundsheets is for the groundsheet to extend some 15 cm (6 in) up the lower part of the walls (sometimes called a 'bathtub' arrangement); this copes with a situation where moisten seeps under the sideways walls of the tent.
The pop-up tent is a Frame Tents recent innovation . This type of tent is equipped with built-in indubitable flexible hoops so that when the tent is unpacked, it springs into shape immediately, and so is extremely easy to established up. Such tents are customarily single-skinned and are generally aimed at the one-season or children's end of the market; their elevated flexibility makes them disagreeable for good in windy situations. After fitness the tent is packed down into a thick disc shape; for a two-man tent this would be roughly the capaciousness of a bodhrán.