


Automatic Roof Vent Opener & Bug Screen
The Bayliss automatic roof vent opener, made in England, is an elegant and efficient solution for maintaining the perfect climate in your greenhouse. This ingenious device harnesses the power of thermal expansion, utilizing a special wax compound that responds to temperature changes. As the temperature rises, the wax expands, gently lifting the vent to allow excess heat to escape. When the temperature cools, the wax contracts, gradually closing the vent to retain warmth.
The Bayliss automatic roof vent opener, made in England, is an elegant and efficient solution for maintaining the perfect climate in your greenhouse. This ingenious device harnesses the power of thermal expansion, utilizing a special wax compound that responds to temperature changes. As the temperature rises, the wax expands, gently lifting the vent to allow excess heat to escape. When the temperature cools, the wax contracts, gradually closing the vent to retain warmth.
The Bayliss automatic roof vent opener, made in England, is an elegant and efficient solution for maintaining the perfect climate in your greenhouse. This ingenious device harnesses the power of thermal expansion, utilizing a special wax compound that responds to temperature changes. As the temperature rises, the wax expands, gently lifting the vent to allow excess heat to escape. When the temperature cools, the wax contracts, gradually closing the vent to retain warmth.
In addition to our automatic roof vents, crafted from premium Western Red Cedar, our bespoke roof vent bug screens are tailored specifically to fit our greenhouses. These screens are easily removable, providing convenient access to the automatic roof vent openers and allowing for seasonal storage. Designed for both function and elegance, they seamlessly blend into the greenhouse aesthetic while keeping unwanted pests out.