Electric Ventilation Multi Span Greenhouse with Roof Windows for Farms

Product Description

Ventilation is the part of a greenhouse that decides whether a hot afternoon costs a crop, and this house hands that job to electric roof windows instead of to a crew with a crank. Motor driven roof and side vents open on demand, so air exchange happens when the temperature climbs, not when someone walks past. Behind the vents sits a hot dip galvanized steel or aluminum alloy frame, which resists the corrosion that humid interiors cause, and the covering passes 90 to 95 percent of available light with a UV resistant coating that slows aging. Insulation is moderate and can be raised with double glazing where nights run cold, and boiler or radiant heating can be added where winter demands it. Span runs from 8 to 12 m with length to 100 m, so the house follows the field. Span, vent layout and heating are all made to order.

 

Product Description

Greenhouse size :

Width accroding to clients demands

Span width 8m /9m/10m/11m/12m

Length accroding to clients demands Gutter height :3 m-4.5m

Top Height :6m-8m

Top Cover material : PO or PEP

Around cover Material : PO or PEP 

Detailed Photos

 

Product Parameters

 

Structure material	Galvanized steel or Aluminum alloy
Covering material	Plastic film with PO , PEP
Light Transmission	90%-95%
UV Protection	Yes.UV resistant coating
Lifespan of Plastic	3 years
Insulation	Moderate ( Can be improved with double-glazing)
Ventilation system	Roof vents ,Side vents, Or automated systems
Hetating system	Optional(e.g. Boiler ,radiant heating )

1. Overview

A Film Greenhouse, also known as a Polyethylene (PE) Film Greenhouse, is a cost-effective and versatile structure designed for agricultural and horticultural purposes. It utilizes polyethylene film as the primary covering material, providing an optimal environment for plant growth by controlling temperature, humidity, and light conditions.

2. Structure and Materials

Frame Material:
The framework is typically constructed from galvanized steel or aluminum alloy, ensuring durability, corrosion resistance, and the ability to withstand environmental stresses.
Covering Material:
The greenhouse is covered with multi-layer polyethylene (PE) film, usually ranging from 0.08 mm to 0.2 mm in thickness. Advanced films may include UV stabilization, anti-drip coatings, and thermal insulation layers to enhance performance.
Foundation:
The structure is anchored to a concrete foundation or ground posts, providing stability and longevity.

3. Key Features

Light Transmission:
The PE film offers 85% - 90% light transmission, ensuring sufficient natural light for photosynthesis while diffusing sunlight to prevent plant burn.
Thermal Insulation:
Multi-layer films create air pockets that improve thermal insulation, maintaining a stable internal temperature and reducing heating costs in colder climates.
UV Protection:
UV-stabilized films protect plants from harmful ultraviolet rays while extending the lifespan of the covering material.
Ventilation Systems:
Film greenhouses are equipped with side vents, roof vents, or manual/automatic roll-up systems to regulate airflow, humidity, and temperature.
Expandability:
The modular design allows for easy expansion or customization to meet specific crop requirements.