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Sawtooth Film Multi-Span Greenhouse

A sawtooth multi-span plastic greenhouse is a type of multi-span plastic greenhouse that integrates roof ventilation openings into its structural design. The serrated roof profile promotes natural air exchange, allowing warm air to exit efficiently.
Compared with conventional multi-span plastic greenhouses, the sawtooth structure improves internal airflow without fully relying on mechanical cooling systems. This makes it suitable for warm climates and large-scale vegetable farming projects.
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>> Product Advantage

1. Natural Ventilation Roof Design

The sawtooth roof structure allows continuous air circulation. Warm air rises and escapes through upper openings, reducing heat accumulation and improving internal growing conditions.

2. Hot-Dip Galvanized Steel Structure

The greenhouse frame is manufactured from high-strength galvanized steel. It provides corrosion resistance, stable load capacity, and long service life under outdoor conditions.

3. High Light Transmission Plastic Film

UV-stabilized polyethylene covering ensures approximately 85–90% light transmission. It distributes sunlight evenly while protecting crops from wind, rain, and external climate changes.

4. Modular Multi-Span Configuration

The connected span design creates a wide, continuous planting area. It improves land utilization efficiency and supports standardized commercial farming management.

5. Customizable Environmental Control Systems

System configuration can be customized according to crop type, project scale, and regional climate conditions.


>> Technical Parameters

Sawtooth Film Multi-Span Greenhouse

Building Materials

Steel-Plastic

Span

Multi

Frame Material

Hot Galvanized Steel

Layer

Single

Light Transmittance Rate

More Than 90%

Covering Material

Po/PE Ilm

Span width

6m/8m/9.6m/10m/12m/customized

Wind load

0.25-2KN/m2(According to the specific situation)

Section width

3m/4m/5m/customized

Snow accumulation

0.25-2KN/m2(According to the specific situation)

Height of the quarry

3m/4m/5m/customized

Planting interest-bearing load

0.25-2KN/m2(According to the specific situation)

Ridge height

4m/5m/6m/customized




>> Product Uses

1. Commercial Vegetable Farming

Suitable for tomatoes, cucumbers, peppers, and leafy greens. The ventilated roof system supports stable airflow for consistent crop production.

2. Flower and Ornamental Plant Cultivation

Provides uniform lighting and adjustable growing conditions for professional flower farms.

3. Agricultural Parks and Industrial Farming Projects

Widely used in government-supported agricultural projects and modern farming parks requiring scalable greenhouse infrastructure.

4. Customized Agricultural Engineering

Ideal for investors and agricultural enterprises requiring tailored greenhouse construction and system integration.


>> Product Operate Guide

Greenhouse Construction Steps:

1-Site Preparation & Line Marking

Mark out lines horizontally and vertically for the ground-inserted greenhouse. Drill holes at 1-meter intervals, with the depth matching the required embedding length of the main frame.

2-Material Delivery & Assembly

Transport all materials to the site and pre-install the elliptical clamps in accordance with the greenhouse design.

3-Frame Erection & Levelling

After assembling all elliptical clamps, erect the main frame, connect the tie rods, and use a spirit level to adjust and ensure horizontal alignment.

4-Frame Grouting & Support Installation

Backfill the base of the frame with concrete, then erect the support columns, along with the column girders and diagonal braces.

5-Clamping Channel Installation for Air Vents

Once the concrete has set, install the clamping channels for the side and roof air vents.

6-Greenhouse Film Installation

Cover the frame with the greenhouse film and secure it firmly in the clamping channels using spring clips.

7-Insulation Blanket & Winder Installation

Fit the insulation blankets, weld the blanket-rolling rods, install the blanket winders, and fasten the blankets in place.

8-Film Roller Installation & Commissioning

Mount the film rollers, test the operation of the insulation blankets and the film air vents. The entire greenhouse construction is then completed.


>> FAQ

Q1: What is the minimum order quantity (MOQ)?

A: The MOQ is one set. Each double layer warm greenhouse is usually produced based on project size, making it suitable for both small trial orders and large agricultural projects.


Q2: Is installation support provided?

A: Yes. We provide detailed installation drawings, layout plans, and step-by-step assembly instructions.


Q3: How is the greenhouse packed and shipped?

A: Steel structures are packed in bundles, and double-layer films are packed in protective rolls or cartons. The greenhouse is suitable for container shipping, including 20GP, 40GP, and 40HQ containers.


Q4.Payment method and warranty period?

A:Accept TT/LC, with a 15 year warranty (free replacement for non-human damage).


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