Our knotted nets are made of twisted and knotted black polyethylene that will not run. UV treated for an extended life of 7 to 10 years. Knotted netting has less wind load than knitted netting and has less surface area for water to adhere, making it a good choice for areas with extreme ice and snow conditions. Our heavy knotted netting has a 75 lb. breaking strength. Extra heavy knotted netting with a 115 lb. breaking strength is also available upon request.