I read my 2021 Grandby manual and could not find any actual ratings or recommendations expressed in numbers. Even for the optional permanent aluminum rack they say “for light weight items,” and they show examples of one canoe or two small kayaks. I remember being told 150 lbs max for the Yakima tracks but can’t find that in the manual. I don’t recall seeing anything about an allowable snow load. They do say clear off any snow before lowering the roof.
Are you talking about distributed roof load like snow or are you talking about extra items like solar panels and kayaks on a rack, etc?
I can’t imagine they’d say 1000 lbs is ok with the roof up.
Waiting for definitive update from FWC....but a few years ago Stan stated that the roof could support a load of 1,000 lbs when up....yes as in snow load when camper is in use and top is up...sure distribution of that weight plays in but how is unknown...
That is why I asked this question concerning verification of maximum load possible/recommended on a FWC roof....notwithstanding the model differences in surface areas....preloading the roof with panels or gear would of course factor into when a roof reaches or exceeds it's load limit.
This from FWC website but only infers that the 1,000 lb snow load would be when top is up.
"How much weight will the roof hold?
To avoid and possible joint separations or leaks, we build each camper with a “one piece” aluminum roof skin.
To maximize the balance of strength and weight, the roof frame is constructed of welded aluminum.
The roof is designed to withstand up to 1,000 lbs. of an evenly distributed snow load.
When carrying luggage, coolers, kayaks, canoes, etc. on the roof, we recommend keeping the total gear weight around 100 lbs. or less. The less gear that is on the roof, the easier it will be for the customer to raise & lower the roof.
We offer several roof racking systems to meet most customer needs."