Water Column

A water column is a unit of measurement used to assess the waterproofing of various materials. This is especially important when it comes to clothing and equipment designed to protect against water, such as rain gear, tents, or storage products meant to stay outdoors. Just like Bag'in. Here we give you an introduction to what water column means!

Water column is usually measured in millimeters (mm) or centimeters (cm) and refers to the height of a water column that a material can resist before water starts to penetrate. For example, if a material has a water column of 10,000 mm, it means it can withstand a water column 10,000 mm high before it starts to leak. To determine the water column of a material, it is placed under a column of water and the point at which water begins to penetrate is recorded. The higher the water column before water breaks through, the better the material is at resisting water ingress.

Simply put, a material with a 10,000 mm water column will only let water through when the pressure of 10 meters of water is placed above it.

Here is an explanation of different water column levels and what they mean:

10,000 mm water column: This is a good water column rating for materials used in moderate rain and snowfall. Furniture with this rating will protect against normal rain showers and light snowfall.

15,000 mm water column: A water column of 15,000 mm provides even better protection and is suitable for areas with frequent rain and moderate snowfall. The furniture will handle more precipitation and be reliable in most weather conditions.

20,000 mm water column: This level is suitable for locations with heavy rain and significant snowfall. The furniture will stay dry and in good condition under more demanding weather conditions.

25,000 mm water column: This is a very high water column rating, ideal for areas with extremely heavy rain and large amounts of snow. The furniture will be highly reliable and able to withstand even the most challenging weather conditions. Bag'in models carry this water column certification!

A water column of 25,000 mm is an extremely high level of waterproofing, specifically designed for outdoor protective products meant to stay outside through winter. It means the fabric can withstand heavy rain, melting snow and ice, and even prolonged wet conditions without allowing water penetration. A bag with a 25,000 mm water column rating provides outstanding protection and peace of mind for your outdoor furniture – and combined with proper storage and maintenance, this type of bag will help ensure that what you pack inside stays in top condition throughout winter, letting you think as little as possible about your outdoor furniture during the off-season.

Protection against snow and ice: When winter arrives with snow and ice, protecting your outdoor furniture is essential. A bag with a 25,000 mm water column ensures that snowmelt cannot penetrate the material. This prevents potential damage when snow refreezes, which can cause cracking and deformation of your furniture.

Resistance to rain and moisture: While winter is often associated with snow, rainfall can also occur. A high water column rating protects your outdoor furniture against rain and moisture penetration, which can be just as damaging as snow and ice. This is especially important for furniture made of wood or textiles, as these are particularly vulnerable to moisture damage.

Long lifespan: Materials with a 25,000 mm water column rating are known for their superior durability. A bag made from such material will have a long lifespan and withstand even the most demanding winter conditions without losing quality or protective properties.