temporary garage

I've had one of the Costco temp garages for probably about 7 years. First one lasted 5 years until I didn't go out and knock the snow off of it and it collapsed the next day. That was definitely my fault.. all I have to do is keep an eye on it and if it gets a couple inches on it go out and take a 6 ft or so 2x4 from the inside and punch the roof a few times and it just slides all off and each one of the six sections it takes about 3 minutes... I've done it numerous times every winter and never had a problem till I forgot one time LOL.. beyond that mine's in between houses and well protected from the wind but I've seen them when they're not protected from the wind and out in the open and then that taking off..