How to Prepare Your Greenhouse for Hurricane Season

How to Prepare Your Greenhouse for Hurricane Season

Greenhouse Hurricane DamageNote: This article is the fifth in a series in which Greenhouse Grower and LLKlink Greenhouse Solutions (a national sales and service greenhouse provider) are partnering to provide you with information on how to most efficiently manage your greenhouse. Check out the other articles in the series here.

Year after year, there are reports of greenhouses and crops that have been severely damaged by hurricanes. Damage to greenhouses can include racking of the frame, bending of the hoops, broken glass, torn plastic, uplifted foundation posts and total loss, to name a few.


Preparation ahead of time can minimize the damage to your greenhouse and, more importantly, the crop below it. Here is some information on how to prepare for a hurricane, as well a checklist of key items to consider before and shortly after a hurricane.

Steps You Can Take Now, or Anytime, to Prepare

• Construct your greenhouse according to local building codes
• Check your connections and structural members, and remember to secure loose components
• Make sure glazing is properly installed, and keep additional inventory on hand for emergency covering
• Develop an emergency contact list (FEMA, insurance company, greenhouse supply and construction contractor) and keep numbers and emails current
• Make a disaster recovery plan for key electronic and hard copy documentation
• Determine capacity, phase, portability, and quantity of generators needed
• Confirm access to such items as first aid supplies, weather radio, plumbing supplies, portable lights, batteries, lumber, nails, tarps, and ropes
• Conduct an annual or semi-annual review of insurance, and know the limits of your insurance coverage. Plan for areas not covered (flood insurance), changes or improvements (new structures, computers, automated equipment, etc.), and business interruption coverage
• Develop pre- and post-hurricane responsibilities (insurance communication/management, crop mitigation, greenhouse mitigation, and portable water) and who should take ownership of these responsibilities

What to Do Right Before a Hurricane Hits

If you know a hurricane around your area is imminent, here are some immediate steps you can take:
• Irrigate plants
• Fill sprayers and any available portable containers with water
• Charge batteries
• Turn off natural and/or propane gas lines, water, and electricity
• Secure or take inside any items that can be picked up and hurled through glazing
• Inspect for dry or weak tree limbs that could fall on your greenhouse
• Remove greenhouse plastic and/or shade cloth if possible
• Lay large plants down with the container end toward the wind
• Place your most valuable plants in a protected place (box trailer)
• Secure greenhouse vents and, if possible, doors
• Tape shutters closed and turn on exhaust fans enough to create a vacuum in greenhouses with glazing other than plastic
• Print/secure plant inventory and fertilizer/pesticide inventory and store

After the Storm

Following a hurricane, here are some key actions you can take (when access back to the area is allowed)
• Survey for safety hazards such as downed electrical wires, leaking gas or flammable liquids, damage to foundations, etc.
• Notify the local fire department and/or police as appropriate
• Safely secure the site and assess damage
• Contact pre-designated key personnel, insurance company, and emergency contractors specialized in greenhouse mitigation/repair to coordinate and start repairs and salvage
• Begin salvage as soon as possible to prevent further damage to crop and structure. Items to consider include: separating damaged crops from undamaged crops; temporary placement of undamaged crop in an alternate area that has been secured; covering broken glass and/or damaged roofs; cover contents of buildings with tarps to minimize rain damage until emergency contractors can repair; making temporary repairs; cleaning and drying equipment, with the most critical objects receiving priority; removing standing water; dehumidifying most areas, especially moisture sensitive equipment; and inspecting all electrical equipment, including exposed insulators, bus bars, and conductors, before reenergizing electrical distribution systems and equipment
• Ensure that all safety procedures are properly supervised and enforced during salvage and repair operations.

Emergency Repair Contractor Checklist

Here are some key considerations when selecting a contractor to repair/mitigate damages to greenhouse:
• Contract with a professional company with skilled/experienced personnel in greenhouse design, supply, and installation. Make sure the company provides one point of contact throughout the entire process who can work with your team and the insurance company. Request references and/or examples of previous work from the contractor.
• Request and receive proper insurance documentation (workers’ compensations, liability, and excess/umbrella coverage) before any mitigation work begins.
• Request, receive, and execute a written proposal that outlines the scope of work and safety plan necessary to repair damages.
• Perform a walk-through of completed repairs with your greenhouse construction company.

Proper preparation before hurricane season can save your crop and/or greenhouse operation. Engaging emergency repair contractors who specialize in greenhouses can help mitigate short-term crop losses and insure proper repair to greenhouse structure. Finally, remember that safety should always be your top priority with all greenhouse activity, and should be considered in every aspect of your operation.