Threaded rod and cover for structural use in conservatories This high quality Tie Bar combines great strength and resilience with a stylish appearance . Manufactured as an internal support for conservatories . Choose the colour from the options above. Why fit tie bars Tie Bars are vitally important on conservatories. On larger sized or glass roofed conservatories tie bars are often necessary to ensure the structural integrity of the conservatory. The bars run across the width of the conservatory at the base of the roof. They are fastened to the roof spars and meet in the middle at an attractive boss which is then attached to the central ridge above. Tie bars protect the roof against movement and helps to maintain the structural integrity. The bars when used with one of our kits have been designed to look as attractive as possible. Conservatories without tie bars over time or under stress from the weight of snow or wind etc.. can bow distort or move out of alignment. ...