Deployed fabric has much greater wind area than stowed fabric.
KAVORA · WIND MANAGEMENT
Wind ratings for retractable shade: why operating state matters.
A wind number without an operating-state definition can be misleading. Retractable systems often have different limits when open, partly open, closed or stowed.
SHORT ANSWER
Specify the storm state as clearly as the design wind.
Define the exact deployed operating limit, the required retraction/stow threshold, sensor/manual control strategy and the structural design basis for the fixed frame/foundations. Do not use one headline speed for every operating condition.
KEY PROJECT POINTS
What should drive the decision.
These are project inputs, not substitute engineering or automatic product approvals.
Automatic wind sensors do not replace structural design.
Power loss can affect retraction at the worst possible time.
Partial deployment may be outside the tested operating state.
Foundations/supports still see storm loads when the fabric is stowed.
Operator training and storm procedure belong in handover.
Ask what the published number means
Is it an operational wind limit, survival condition, test speed, calculated pressure or marketing shorthand? The context matters.
Define the retraction strategy
Automatic sensors, manual weather monitoring, operator responsibility and backup power can all form part of the severe-weather plan.
Keep the fixed structure separate
The mast/frame/foundation may require a site-specific design wind even if the fabric must be retracted at a much lower operating threshold.
Plan post-event inspection
After severe weather, inspect fabric, arms, joints, motors, fixings and drainage before returning the system to normal operation.
PROJECT INPUTS
What to have ready before asking for the exact system.
A stronger brief shortens the gap between product interest and a useful technical/commercial response.
Exact shade model
Dimensions
Deployed wind limit
Stowed/survival condition
Sensor/control strategy
Power-loss behaviour
Local design wind
Foundation/fixing
Coastal exposure
Operator responsibility
Storm procedure
Post-storm inspection
EVIDENCE BOUNDARY
One wind-speed figure should never be published without its test/calculation context.
Verify exact system size, configuration, operating state, test/calculation method and structural boundary conditions. Site-specific support and foundation design remains a project responsibility.
FAQ
Questions project teams usually need answered.
Does a wind sensor make an awning cyclone-rated?
No. A sensor is an operating control, not structural evidence.
Can a retractable shade stay open in strong wind?
Only within the exact documented operating limits for that system/configuration.
Should wind limits go into the O&M manual?
Yes. Retraction/stow thresholds, control method and post-storm checks should be part of handover.