Buteo Photo Gear Extra Roof for Buteo Mark III (Brown)
This extra rain roof is an accessory for the Buteo Mark III brown and can be useful to make the roof of your camouflage tent even more waterproof.
If you want to leave the Buteo Mark III brown standing for a longer period of time, or if you want to be 100% sure that not a drop will seep through the roof, this is the perfect solution. The material is exactly the same as that of the tent itself: Polyester 150D. So you have a double polyester roof over your head, so also 2 a water column of 2,500 mm. This rain roof fits exactly over the existing roof and is easy to attach at 4 corners with a hook.
In the Boxy
- 1x Buteo Photo Gear Extra Roof for Buteo Mark III (Brown)
- 1x storage bag
Definition: The Water Column of a Tent
The water column indicates the maximum water pressure that a tent fabric can withstand.
A water column of 1,500 mm means that the tent fabric can withstand the pressure
of a 1,500 mm (1.5 meter) high column of water before water penetrates the fabric.
The higher it is, the more waterproof the tent material is.
Waterproofness
The water column is also a unit of measurement to measure the watertightness e.g.
B. of technical fabrics (tents, functional and rainwear).
DIN EN ISO 811:2018
regulates the method for determining the resistance to the penetration of water.
The following “hydrostatic water pressure test” must be carried out: The outside
of the material is exposed to the water. The water pressure starts at zero, the
water column rises by 100 mmWC or 600 mmWC per minute, depending on the standard.
The time is measured until the third drop can be seen on the inside. The pressure
that is acting at this point in time is then given in millimeters of water column.
Top tents are considered waterproof from 1500 mm
and tent floors from 2000 mm according to DIN.
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