A.All tents should met the British Standard for waterproofing. The fabric used for most tents will have a waterproof membrane or coating that prevents water droplets from penetrating through the fabric. With use, mud and dirt can cause the water repellent coating to break down which will result in water being absorbed into the fabric rather than running off. It is recommended that tents are periodically ‘reproofed’ with a special reproofing spray such as our Tent and Equipment Proofer Spray. This will restore the water repellency whilst maintaining the breathability of the fabric.