“I purchased the Lighthouse 18 last November. It has withstood all weather for the past year including being crushed flat by an all-night wet snow last January. I shoveled hundreds of pounds of snow off of it, crawled inside and popped it right back like new. The only damage was a pinhole in the roof.”
(Note: Shelter Systems does not recommend that you allow snow to build up on your dome; best is to take it down for the winter or at least to knock the snow off with a broom or melt it off with heat inside.)