2024 Author: Gavin MacAdam | [email protected]. Last modified: 2023-12-16 13:38
A rich crop can be harvested in a greenhouse that is well ventilated. High-quality ventilation is provided by a sliding roof device. Consider the possible options for such devices, the principle of operation, we will tell you how to create a sliding structure yourself
Varieties of greenhouse roofs
There is no limit to the imagination of the masters, creating a greenhouse, everyone can realize their own project, therefore the structures have a different look, they are united only by the purpose of retaining heat. There are also types of roofs: arched, gable, domed, pyramidal, gable (wall), multifaceted, with a sloping roof, droplets.
Sliding roofs
Purchased greenhouses are made competently and almost all have the possibility of ceiling ventilation. If you want to build on your own or improve an existing structure to improve ventilation, then you need to know what types there are.
roof butterfly
Today, many people prefer efficient retractable roof greenhouses. These are ergonomic, sophisticated mechanisms, reliable in operation. There are manual and automatic controls. The most common types: pencil case, matryoshka, butterfly, convertible.
• Model "matryoshka" has a polycarbonate coating installed on arches. They are located one below the other in such a way that they can shift-fold. In winter, it does not experience the weight of snow, as it shifts and the surface is halved.
• The butterfly model is designed for small areas to avoid high wind loads. It transforms quickly, opening the sides of the plant beds. Made of polycarbonate.
• The "convertible" model has sliding devices on special rollers, which allows half of the surface of one wall and roof to be slightly opened.
roof convertible
Sliding roof device
Having a greenhouse made of a metal profile, you can create a ventilation system with your own hands. For mechanical opening, installation of special devices is required, and for automatic opening, you need to buy a thermoactive device. Automation is ideal for those who visit the cottage only on weekends.
To ventilate the greenhouse on its own, you will need devices for opening and closing. They work on the basis of fluid expansion and actuation of a piston cylinder. You can make the device yourself or buy it. When the temperature threshold is exceeded, the piston moves, which squeezes out the rod that opens the window / door / vent. When the liquid cools down, the volume decreases, the reverse process begins and everything closes.
automatic ventilation
Ready-made sliding greenhouses are an order of magnitude higher than usual. Much less price for options with removable roofs. They are considered the most comfortable and durable. Consider the methods of self-production of such models.
Removable roof greenhouse
The design involves equipping the greenhouse roof with vents or compartments that can be moved / removed. In summer, this device allows you to create high-quality ventilation, and in winter, it reduces the load and snow falls on the beds. When the greenhouse is divided into two compartments, when the roof is opened, it becomes possible to create different conditions for growing vegetables.
A greenhouse with a removable roof must have good stability and a strong frame. It is advisable to build the building on a concrete fill or a wooden beam laid along the entire perimeter. The larger the structure, the more solid the foundation.
When starting the installation of the roof lathing, you need to choose a place for the opening parts. As a rule, these are the ends of the greenhouse, this arrangement has a beneficial effect when opening to the air flow. The size of the transom will be optimal if it is about 25% of the top cover.
Sliding parts are usually made of 1 meter wide polycarbonate sheet. The principle of operation is to move the sheet down or up. For this, a profile with grooves is attached. In the future, a leaf-leaf will "slide" along them. On the sides, a clamp-limiter is created to prevent displacement during sliding opening. And also you need to provide a stopper for fixing. Convenience of the process will be provided by the handle on the frame.
It is important to make a tight fit at the joints. A transom made of monolithic polycarbonate with an overlap will help to avoid rainwater entering the greenhouse.
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