Profile: Bridge Greenhouses Ltd. specializes in the construction of commercial glasshouses. Our roll tube screens provide shade to end and sidewalls, and are used for wide span roof structures. Our horizontal roof screens include push-pull system and pull-wire system. They can be used for single, double, or even triple screen installations. We offer static benches, sideways rolling benches, and fully automated container systems. Our variable speed drive systems can be controlled by the environmental computer which calculates the energy required, and adjusts the speed of the pump accordingly.