Preparing your greenhouse for winter storms
Snow that accumulates on a greenhouse can put significant weight on the structural members. Snow can be light and fluffy with a water equivalent of 12 inches of snow equal to 1 inch of rain. It can also be wet and heavy with 3 inches of snow equal to 1 inch of rain. Snow having a 1 inch of rain water equivalent will load a greenhouse with 5.2 psf. This amounts to 6.5 tons on a 25' X 96' greenhouse.
While we do not know what is in store for this winter, a little preparation before a storm can minimize damage from severe weather events.
Here are a few resources to help prepare for winter storms this season.