Abstract: The tent herein comprises outer nonporous and inner porous layers disposed in spaced relation to each other, with a continuous air passageway therebetween. Compression tent supporting means comprises a plurality of demountable, substantially, semicircular rods, preferably formed of fiber glass, forming arched rafters, and of a plurality of relatively short pieces slidably interconnected to form two rod units. These two rod units are interconnected by a sleeve, slidably mounted on one unit, to slidably receive the end portion of the other. The arched rafters are spaced apart and alined substantially parallel to each other and progressively decrease in diameter in a tent longitudinal direction. An inner tent layer is suspendedly supported by an outer layer by porous netting strips. At the end portions, nonporous, substantially semiannular shaped end members are provided which extend radially inwardly and angularly between the inner and outer tent layers.