The 5 hem curtain system has two curtains for each run. The bottom curtain looks and operates like the 1 piece 3 hem curtain except that the top pipe of the system is mounted about a third of the way down from the header and the 3 hem curtain rolls up to that point.
The top curtain in the system has 2 hems and generally covers about one-third of the clear opening. When fully closed the top curtain overlaps the top of the bottom 3 hem curtain.
The 2 piece 5 hem system operates with 2 drive units operating in the cage.
The top curtain is the first to be opened and the top curtain is the last to be closed. When fully closed the bottom curtain should overlap the wall/footer and the top curtain should overlap the bottom curtain. When fully opened the top curtain will be rolled up to the top pipe mounted to the header. The bottom curtain will be rolled up to the pipe mounted about one-third of the way from the head to the footer.
The 5 hem curtain is typically used for larger openings (approximately 6-14’). The two curtain system allows for larger openings and the system offers more flexibility for airflow location and amounts for the livestock as the top curtain is opened first so the first air is coming in higher over the livestock.