my brother to it (the wh6500 non insulated) leaks on a seam they ran across the roof. yours may or may not have that seam. the thermowelds do freeze when heating on my shappell fx100i and it freezes about 2 feet up from the ice plate. they may leak if it gets enough melted snow or rain, but i am unsure of that because i only used my fx100i twice and it didn't snow hard enough to make water from heating.
the rest of the fabric does not freeze.
i had one pole fall out of a hub mount. when shappell owned it, they sent the pole replacement. they wanted me to glue it back together, but i insisted on a new pole.
i like the twin doors and are C shaped and the grommets on the wind skirt.
i like the windows and placement, although velcro windows always leak when snow melts on them or rains.
i like that they are removal/replacable.
my gander mountain/eskimo 8x8 thermo does get wet when it snows hard or rains on it and acts like a sponge. then it gets heavy to take home and drips water every where. it is very hard to dry it out and i have to let the water run out of it in the bath tub and then move it out where our furnace can slowly dry it. it takes a long time to dry it.
it uses the same material or so it seems with the polyfill insulation inside two layers of what is not water proof materials.
