Roll up sides on a greenhouse offer a versatile solution for managing your growing environment, providing excellent ventilation, light control, and easy access. Mastering the operation of these retractable panels is essential for any serious gardener looking to optimize plant health and extend the growing season. This guide walks you through the entire process, from the fundamental mechanics to advanced techniques for various weather conditions.
Understanding the Mechanics of Roll Up Sides
The foundation of successfully using roll up sides lies in understanding how they work. Most modern systems utilize a coaxial tube mechanism, where a smaller tube carrying the fabric curtain sits inside a larger, fixed tube. When cranking the handle or activating the motor, the tube rotates, either winding the fabric up to reveal the opening or lowering it to close the vent. This design ensures a smooth, tight seal when closed, preventing drafts and pests from entering your carefully controlled environment.
Manual vs. Automated Systems
Before you begin rolling up the sides, you need to identify which system you have. Manual roll up sides are operated with a hand crank, often located on the end wall of the greenhouse. You simply turn the crank clockwise or counterclockwise to raise or lower the panel. In contrast, automated systems use a motor, often controlled by a switch or a smart controller, which powers a series of gears and cables. Knowing your system type dictates the physical effort required and dictates the speed at which you can respond to changing conditions.
Step-by-Step Process for Manual Roll Up Sides
Operating a manual roll up side is a straightforward process that requires minimal physical strength but does require a bit of coordination. Follow these steps to ensure you raise the panel smoothly without damaging the fabric or the track.
Preparation and Inspection
- Walk along the base of the greenhouse wall to check for any obstacles, such as misplaced tools, fallen branches, or debris, that could get caught in the rolling mechanism.
- Visually inspect the fabric panel for any signs of tears, mildew, or stress points that could worsen during operation.
- Ensure the locking pins or safety straps are disengaged before you begin to roll the side up.
The Rolling Technique
Grasp the handle or the designated grip area firmly with both hands. Apply steady, consistent pressure to turn the crank. As you do this, watch the fabric panel begin to curl up into the tube. It is crucial to maintain tension on the fabric as it rolls up; if it begins to sag or fold on itself, stop and gently guide it back into the track with a long pole or your free hand. Continue cranking until the panel is fully retracted and secured in the upright position.
Securing the Panel in the Open Position
Once the roll up side is fully open, it needs to be held in place securely to prevent it from falling back down or being caught by a sudden gust of wind. Most roll up systems are equipped with a series of alignment holes along the vertical track on the side of the greenhouse.
| Tool | Purpose | Best Used When |
|---|---|---|
| Turnbuckle Lock | Tightens the cable to remove slack | High wind areas or large openings |
| Panel Lock Pins | Slips into alignment holes to fix height | Daily ventilation adjustments |
| Adjustable Straps | Secures fabric to ground anchors | Temporary setups or DIY systems |
For a standard pin system, simply lift the panel up to the desired height and slide a hardened metal pin through the corresponding hole in the track and the alignment holes on the edge of the fabric panel. This "click" ensures the panel will not descend unexpectedly. For larger panels, using a turnbuckle lock at the base of the cable system allows you to tension the fabric, eliminating flapping and wind resistance.
Seasonal and Weather-Based Strategies
The way you manage your roll up sides changes dramatically with the seasons. In the height of summer, you might want maximum ventilation to combat heat and humidity. Rolling up the sides fully creates a cross-breeze that flows through the entire structure, preventing hot spots and reinforcing plant stems. During the spring and fall, you might only need partial ventilation; in this scenario, rolling the sides up only halfway provides fresh air without exposing delicate seedlings to chilling nighttime temperatures.
Winterization and Wind Management
When winter approaches or a severe storm is forecast, rolling up sides is not the goal—closing them completely is. However, if you find yourself with a nearly closed roll up panel during a high-wind event, do not leave it partially open. The sail effect created by the fabric can generate immense pressure, potentially ripping the panel from its tracks or damaging the greenhouse frame. If ventilation is absolutely necessary in high winds, engage the locking pins immediately after raising the panel to the desired position to prevent dangerous swaying.
Maintenance for Longevity
Regular maintenance is the secret to ensuring your roll up sides operate smoothly year after year. The most common point of failure is not the metal frame, but the fabric and the rolling mechanism. After every season, clean the fabric panels with a mild soap solution and a soft brush to remove dirt that can degrade the material. Lubricate the moving parts, such as the crank gear and the tube bearings, with a silicone-based lubricant to keep the operation smooth and quiet. Check the alignment of the tracks frequently; if the panel begins to stick or veer to one side, realigning the tracks early will prevent more significant damage down the line.
