Built to Last Since 1979.

History of GGS• GGS is part of a group of companies owned by the

Harrison family which include GGS Construction, GGS

Structures Inc, Niagrow Systems Limited, JGS Limited,

Letrek Holdings, Trevor Construction Corp, Necaxa SA &

MMM SA

• Three of our companies specifically design greenhouse

systems:

What We Do• GGS creates the ideal environment for your crops

to flourish.

• GGS can provide turnkey solutions for a seamless

and worry-free greenhouse project

• From structure, to heating, to environmental control,

our professional team at GGS is there through every

step of your project.

Greenhouse Vegetable Production

• Compared to field-grown and low-technology protected crops, greenhouse vegetables lead the market in quality.

• Greenhouse vegetable production trumps field production on not only quality, but variety, food safety, resource conservation, environmental impact, and sustainability.

Source: Update on the North American Greenhouse Vegetable Industry, Farm Credit Canada, 2012

Greenhouse Vegetable Production

• There are 125 countries in the world that produce

greenhouse vegetables commercially

• World Greenhouse Vegetable Production surpassed

1 million acres in 2012

• 2013 Total Estimated World Vegetable Production in

Climate Controlled Greenhouses: 1,101,353 acres

Source: International Greenhouse Vegetable Production Statistics, Cuesta Roble Consulting, 2013

Top Greenhouse Vegetables

(North America)

• #1 Tomatoes

• #2 Cucumbers

• #3 Bell Peppers

Greenhouse Components

• Structure/Shading

• Benches

• Heating System

• CO2 Dosing

• Irrigation System

• Climate Control System

Structure• The way the structure is designed plays a very

important role in the environment of your crops

• Quality growing environment with high light levels is

essential

• Ventilation is critical – there are many options for

natural ventilation such as gutter vents

• Condensation control – structure must be designed

to minimize dripping

• Ideal to have a strong, steel frame that is hot

dipped galvanized to protect against corrosion

from the elements

Freestanding Greenhouse• Ideally suited for professional growers who

require unique environments for different crops

• Provides economical growing space

• Dramatically sloped arch design optimizes the useable space for growing bench crops as well as hanging baskets

Gutter Connected Poly Greenhouse

• A versatile greenhouse designed for vegetable crops or floriculture

• A single piece arch rolled into a gothic peak for superior condensation control

• Gutter vents and other natural ventilation options for the most effective and efficient airflow possible

• The most economical greenhouse for large growers

Widespan Greenhouse• Ideal for a header house, a retail area, or a

growing greenhouse

• Eliminates the center row of posts for more room

• Twin peaks and a floating gutter for increasing the growing area without sacrificing ventilation

Curved Glass Greenhouse• Quality growing environment with high light

levels

• Continuous double ridge vents for up to 50% roof ventilation

• Designed to virtually eliminate condensation drip

• Can also be glazed with 8mm PCSS or 8mm acrylic

Low Profile Venlo Greenhouse

• Quality growing environment with high light levels

• Aluminum roof glazing bars hold the tempered glass panes in place

• Continuous alternating vent windows

• Strong, heavy hot dipped galvanized steel frame for superior protection against corrosion

Cold Frame• Constructed of high quality steel arches to provide

long lasting protection from rust and corrosion

• Easy to build on-site and add-on sections are

available to extend their length

• A cold frame is an excellent structure for the first

time grower as well as large scale nursery

production

High Tunnel• Extends the growing season - crops will benefit from

both an earlier spring harvest, and a longer

fall/winter season

• Provides frost protection, better environmental

control, and significant yield gains

• Reduces moisture, which helps prevent botrytis,

mildew, and other moisture related diseases

Shade System• Curtains provide simplicity, ease of installation, and

are easily maintained

• Add Blackout Screens for day light control and

additional energy savings

• Rolling Screens provide energy management and

blackout for sidewalls

Benches • Benches can either be stationary or rolling

• Can be fabricated in expanded metal covering,

ebb and flood trays, or irrigation troughs

• The bench assembly is designed for easy installation

• Mitred corners prevent workers or customers from

ripping clothing

Heating System• No matter the climate, greenhouses require heating

to ensure optimum plant growth on a year-round

basis

• There are various ways to deliver heat to your

plants:

o Forcas Pipe Heating

o In-Floor Heating

o Under Bench Heating

o Overhead Heating

Forcas Pipe• Thin wall steel tube ideally suited for heating systems

in greenhouses

• Brings heat directly to the crop where it is most

effective

• Lightweight and practical application

• Narrow diameter 28/35mm pipe greatly reduces

volume of water needed

In-Floor Heating• Directly heats the plants and soil

• Flood floors use the concrete floor as a radiant

surface to heat the plants and irrigation water

• In-ground heating uses tubing that is buried directly

in the growing beds

Under Bench Heating• Maintains uniform

temperatures and reduces humidity around the plants

• An under bench heating system can reduce fuel costs 10 percent or more

• Distributing the heat under the benches warms the growing medium first before it rises to heat the air. For most crops, the medium temperature is more critical to good growth than the air temperature

Overhead Heating• Can provide the additional heat required for winter

months

• Compatible with hanging basket areas, snowmelt

systems, and mono- or post-rail systems.

CO2 Dosing• Carbon dioxide is essential for the growth of plants

• Central dosage of CO2-rich flue gasses from gas

burning boilers has led to a considerable

production increase in greenhouse horticulture

• Flue gas condensers increase the efficiency of your

boiler dramatically

Irrigation System• Keeping your plants hydrated with just the right

amount of nutrients is essential

• Many different types of watering systems available:

o Drip Irrigation

o Sub Irrigation

o Misting Systems

o Sprinkler Systems

o Hand Watering Systems

Climate Control System• Computerized

automation ensures

that you can control

your greenhouse

climate

• Computer systems can

automatically control

venting, air circulation,

heating, irrigation, and

more

Lighting• Depending on the geographical

location and time of year,

supplemental lighting is crucial to

ensuring the maximum growth of

your crops

• Supplemental lighting ensures

that you can be flexible on what

crops are grown, regardless of

what day-length or light intensity

is required

Why Choose GGS?

• Quality materials used for every component of the

greenhouse

• CSA-A660 steel quality certification

• Easy, hassle free construction

• Built to last and dependable greenhouse systems

• Projects delivered on time and within budget

• Focus on building an ideal system for your crops

that will maximize return on investment

• Superior customer service through every stage of

your project & satisfaction guaranteed

• To get started on your greenhouse project,

navigate to www.ggs-greenhouse.com