The Quechua is a French brand of adventure equipment that enters Brazil the store Decathlon and has won many fans for the quality and cost-effective products.
The brand has a wide range of stalls and the feature itself to demonstrate how their equipment resist to rain. This procedure, for being different than adopted by most brands, is little understood by the majority of consumers. So, after we publish the article Waterproof Tents: understand before camping in rain,we realized the need to address how the Quechua performs its tests.
What is water column
Is the feature that is used to determine the degree of impermeability of the fabric. In Brazil, for example, you can find stalls of 300 mm to 3,000 mm of water column. The water column is measured by a hydrostatic pressure test that calculates how much the fabric hang on before the water through it. This is the measure that most brands use to demonstrate how the tent can resist to rain.
The water column and the Quechua
The water column test measures only the sealing of the fabric and not the entire tent capacity to resist to rain. For this reason, he is not adopted by the Quechua to say how their tents stand in the rain. The test adopted by the brand is called shower Test, which assesses the ability of the tent as a whole to resist the rain, as we’ll explain more below.
Of course the tissues of Quechua tents also go through this test, but the value of the water column is not usually disclosed technical information.
But according to the company itself, all brand tents fabrics with stand at least 2,000 mm of water column, which can be considered a good number for use in Brazil.
Is the experiment used by Quechua to certify that their tents really stand in the rain. The shower Test is carried out in the laboratory, making the simulation of a situation. In this way, in addition to the sealing of the fabric, seams, fastenings and all openings are also tested. The equipment passes the test only if no drop of water entering the tent after she spend 4 hours under the shower pouring 200 liters of water/hour/m ², which is equivalent to twice the intensity of a storm in Europe during 4 hours.
Wind Tunnel test
In addition to the shower Test, Quechua also performs with some tents a test that aims to try the equipment’s ability to withstand the wind. In a wind tunnel, the tents that are subjected to the test must withstand gusts ranging from 50 km/h to 90 km/h, according to the model. This test, as well as the shower, is accomplished with the tent in your normal size (and not with models), trying to simulate with as much reality the climatic conditions to which they will be subjected.
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