Properly anchored, our greenhouses hold up to 130 mph wind and up to 6' of ground snow* (30lb psf if you can get it to buildup on the roof). Our standard greenhouse holds up to 110mph. Add our wind/snow bracing package for up to 130mph.

All Greenhouses come with a 10-year Guarantee.

**The anchoring must be installed by Modular Greenhouses or a licensed contractor to qualify for the full Warranty.